From acabcecf8644258585248f85b95ee0335c022da8 Mon Sep 17 00:00:00 2001
From: Muhammad Yasirroni <yasirroni@users.noreply.github.com>
Date: Thu, 21 Nov 2024 17:20:39 +0700
Subject: [PATCH 1/3] minor fix case in load any keys example

---
 notebooks/load_any_keys.ipynb | 460 +++-------------------------------
 1 file changed, 30 insertions(+), 430 deletions(-)

diff --git a/notebooks/load_any_keys.ipynb b/notebooks/load_any_keys.ipynb
index ad2a9a3..ba297ff 100644
--- a/notebooks/load_any_keys.ipynb
+++ b/notebooks/load_any_keys.ipynb
@@ -47,208 +47,28 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>1</td>\n",
+       "      <td>5</td>\n",
        "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>74.150480</td>\n",
-       "      <td>34.896181</td>\n",
+       "      <td>90</td>\n",
+       "      <td>30</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
        "      <td>2</td>\n",
-       "      <td>8</td>\n",
-       "      <td>1</td>\n",
-       "      <td>28.081420</td>\n",
-       "      <td>15.758833</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>3</td>\n",
-       "      <td>8</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2.377862</td>\n",
-       "      <td>0.172607</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>4</td>\n",
-       "      <td>10</td>\n",
-       "      <td>1</td>\n",
-       "      <td>17.485805</td>\n",
-       "      <td>11.688645</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>5</td>\n",
-       "      <td>11</td>\n",
-       "      <td>1</td>\n",
-       "      <td>23.246418</td>\n",
-       "      <td>11.789581</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>5</th>\n",
-       "      <td>6</td>\n",
        "      <td>7</td>\n",
        "      <td>1</td>\n",
-       "      <td>17.744576</td>\n",
-       "      <td>0.808382</td>\n",
+       "      <td>100</td>\n",
+       "      <td>35</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>6</th>\n",
-       "      <td>7</td>\n",
+       "      <th>2</th>\n",
        "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>16.111230</td>\n",
-       "      <td>9.895656</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7</th>\n",
-       "      <td>8</td>\n",
-       "      <td>5</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2.892705</td>\n",
-       "      <td>1.954340</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>8</th>\n",
-       "      <td>9</td>\n",
-       "      <td>6</td>\n",
-       "      <td>1</td>\n",
-       "      <td>26.623944</td>\n",
-       "      <td>21.383458</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9</th>\n",
-       "      <td>10</td>\n",
        "      <td>9</td>\n",
        "      <td>1</td>\n",
-       "      <td>9.696765</td>\n",
-       "      <td>6.885234</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10</th>\n",
-       "      <td>11</td>\n",
-       "      <td>12</td>\n",
-       "      <td>1</td>\n",
-       "      <td>16.159454</td>\n",
-       "      <td>13.865387</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>11</th>\n",
-       "      <td>12</td>\n",
-       "      <td>13</td>\n",
-       "      <td>1</td>\n",
-       "      <td>54.008581</td>\n",
-       "      <td>40.773567</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>12</th>\n",
-       "      <td>13</td>\n",
-       "      <td>13</td>\n",
-       "      <td>1</td>\n",
-       "      <td>13.839229</td>\n",
-       "      <td>10.447872</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>13</th>\n",
-       "      <td>14</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>5.831158</td>\n",
-       "      <td>2.685637</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>14</th>\n",
-       "      <td>15</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>8.277018</td>\n",
-       "      <td>11.404585</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>15</th>\n",
-       "      <td>16</td>\n",
-       "      <td>27</td>\n",
-       "      <td>1</td>\n",
-       "      <td>18.487879</td>\n",
-       "      <td>12.280164</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>16</th>\n",
-       "      <td>17</td>\n",
-       "      <td>2</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.010161</td>\n",
-       "      <td>0.191424</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>17</th>\n",
-       "      <td>18</td>\n",
-       "      <td>14</td>\n",
-       "      <td>1</td>\n",
-       "      <td>23.393146</td>\n",
-       "      <td>25.758367</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>18</th>\n",
-       "      <td>19</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
-       "      <td>15.395352</td>\n",
-       "      <td>9.293864</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>19</th>\n",
-       "      <td>20</td>\n",
-       "      <td>27</td>\n",
-       "      <td>1</td>\n",
-       "      <td>23.810698</td>\n",
-       "      <td>9.011489</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>20</th>\n",
-       "      <td>21</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
-       "      <td>3.466689</td>\n",
-       "      <td>1.079331</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>21</th>\n",
-       "      <td>22</td>\n",
-       "      <td>14</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>22</th>\n",
-       "      <td>23</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
+       "      <td>125</td>\n",
+       "      <td>50</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -256,30 +76,10 @@
        "</div>"
       ],
       "text/plain": [
-       "     0   1  2          3          4  5\n",
-       "0    1   1  1  74.150480  34.896181  1\n",
-       "1    2   8  1  28.081420  15.758833  1\n",
-       "2    3   8  1   2.377862   0.172607  1\n",
-       "3    4  10  1  17.485805  11.688645  1\n",
-       "4    5  11  1  23.246418  11.789581  1\n",
-       "5    6   7  1  17.744576   0.808382  1\n",
-       "6    7   3  1  16.111230   9.895656  1\n",
-       "7    8   5  1   2.892705   1.954340  1\n",
-       "8    9   6  1  26.623944  21.383458  1\n",
-       "9   10   9  1   9.696765   6.885234  1\n",
-       "10  11  12  1  16.159454  13.865387  1\n",
-       "11  12  13  1  54.008581  40.773567  1\n",
-       "12  13  13  1  13.839229  10.447872  1\n",
-       "13  14   3  1   5.831158   2.685637  1\n",
-       "14  15   3  1   8.277018  11.404585  1\n",
-       "15  16  27  1  18.487879  12.280164  1\n",
-       "16  17   2  1   0.010161   0.191424  1\n",
-       "17  18  14  1  23.393146  25.758367  1\n",
-       "18  19  16  1  15.395352   9.293864  1\n",
-       "19  20  27  1  23.810698   9.011489  1\n",
-       "20  21  16  1   3.466689   1.079331  1\n",
-       "21  22  14  1   0.000000   0.000000  1\n",
-       "22  23  16  1   0.000000   0.000000  1"
+       "   0  1  2    3   4  5\n",
+       "0  1  5  1   90  30  1\n",
+       "1  2  7  1  100  35  1\n",
+       "2  3  9  1  125  50  1"
       ]
      },
      "execution_count": 2,
@@ -321,7 +121,7 @@
        "      <th></th>\n",
        "      <th>LD_ID</th>\n",
        "      <th>LD_BUS</th>\n",
-       "      <th>LD_STAUTS</th>\n",
+       "      <th>LD_STATUS</th>\n",
        "      <th>LD_PD</th>\n",
        "      <th>LD_QD</th>\n",
        "      <th>LD_FACT</th>\n",
@@ -331,208 +131,28 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>1</td>\n",
+       "      <td>5</td>\n",
        "      <td>1</td>\n",
-       "      <td>1</td>\n",
-       "      <td>74.150480</td>\n",
-       "      <td>34.896181</td>\n",
+       "      <td>90</td>\n",
+       "      <td>30</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
        "      <td>2</td>\n",
-       "      <td>8</td>\n",
-       "      <td>1</td>\n",
-       "      <td>28.081420</td>\n",
-       "      <td>15.758833</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2</th>\n",
-       "      <td>3</td>\n",
-       "      <td>8</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2.377862</td>\n",
-       "      <td>0.172607</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>3</th>\n",
-       "      <td>4</td>\n",
-       "      <td>10</td>\n",
-       "      <td>1</td>\n",
-       "      <td>17.485805</td>\n",
-       "      <td>11.688645</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>4</th>\n",
-       "      <td>5</td>\n",
-       "      <td>11</td>\n",
-       "      <td>1</td>\n",
-       "      <td>23.246418</td>\n",
-       "      <td>11.789581</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>5</th>\n",
-       "      <td>6</td>\n",
        "      <td>7</td>\n",
        "      <td>1</td>\n",
-       "      <td>17.744576</td>\n",
-       "      <td>0.808382</td>\n",
+       "      <td>100</td>\n",
+       "      <td>35</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>6</th>\n",
-       "      <td>7</td>\n",
+       "      <th>2</th>\n",
        "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>16.111230</td>\n",
-       "      <td>9.895656</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>7</th>\n",
-       "      <td>8</td>\n",
-       "      <td>5</td>\n",
-       "      <td>1</td>\n",
-       "      <td>2.892705</td>\n",
-       "      <td>1.954340</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>8</th>\n",
-       "      <td>9</td>\n",
-       "      <td>6</td>\n",
-       "      <td>1</td>\n",
-       "      <td>26.623944</td>\n",
-       "      <td>21.383458</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9</th>\n",
-       "      <td>10</td>\n",
        "      <td>9</td>\n",
        "      <td>1</td>\n",
-       "      <td>9.696765</td>\n",
-       "      <td>6.885234</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10</th>\n",
-       "      <td>11</td>\n",
-       "      <td>12</td>\n",
-       "      <td>1</td>\n",
-       "      <td>16.159454</td>\n",
-       "      <td>13.865387</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>11</th>\n",
-       "      <td>12</td>\n",
-       "      <td>13</td>\n",
-       "      <td>1</td>\n",
-       "      <td>54.008581</td>\n",
-       "      <td>40.773567</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>12</th>\n",
-       "      <td>13</td>\n",
-       "      <td>13</td>\n",
-       "      <td>1</td>\n",
-       "      <td>13.839229</td>\n",
-       "      <td>10.447872</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>13</th>\n",
-       "      <td>14</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>5.831158</td>\n",
-       "      <td>2.685637</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>14</th>\n",
-       "      <td>15</td>\n",
-       "      <td>3</td>\n",
-       "      <td>1</td>\n",
-       "      <td>8.277018</td>\n",
-       "      <td>11.404585</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>15</th>\n",
-       "      <td>16</td>\n",
-       "      <td>27</td>\n",
-       "      <td>1</td>\n",
-       "      <td>18.487879</td>\n",
-       "      <td>12.280164</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>16</th>\n",
-       "      <td>17</td>\n",
-       "      <td>2</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.010161</td>\n",
-       "      <td>0.191424</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>17</th>\n",
-       "      <td>18</td>\n",
-       "      <td>14</td>\n",
-       "      <td>1</td>\n",
-       "      <td>23.393146</td>\n",
-       "      <td>25.758367</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>18</th>\n",
-       "      <td>19</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
-       "      <td>15.395352</td>\n",
-       "      <td>9.293864</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>19</th>\n",
-       "      <td>20</td>\n",
-       "      <td>27</td>\n",
-       "      <td>1</td>\n",
-       "      <td>23.810698</td>\n",
-       "      <td>9.011489</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>20</th>\n",
-       "      <td>21</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
-       "      <td>3.466689</td>\n",
-       "      <td>1.079331</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>21</th>\n",
-       "      <td>22</td>\n",
-       "      <td>14</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>22</th>\n",
-       "      <td>23</td>\n",
-       "      <td>16</td>\n",
-       "      <td>1</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.000000</td>\n",
+       "      <td>125</td>\n",
+       "      <td>50</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -540,30 +160,10 @@
        "</div>"
       ],
       "text/plain": [
-       "    LD_ID  LD_BUS  LD_STAUTS      LD_PD      LD_QD  LD_FACT\n",
-       "0       1       1          1  74.150480  34.896181        1\n",
-       "1       2       8          1  28.081420  15.758833        1\n",
-       "2       3       8          1   2.377862   0.172607        1\n",
-       "3       4      10          1  17.485805  11.688645        1\n",
-       "4       5      11          1  23.246418  11.789581        1\n",
-       "5       6       7          1  17.744576   0.808382        1\n",
-       "6       7       3          1  16.111230   9.895656        1\n",
-       "7       8       5          1   2.892705   1.954340        1\n",
-       "8       9       6          1  26.623944  21.383458        1\n",
-       "9      10       9          1   9.696765   6.885234        1\n",
-       "10     11      12          1  16.159454  13.865387        1\n",
-       "11     12      13          1  54.008581  40.773567        1\n",
-       "12     13      13          1  13.839229  10.447872        1\n",
-       "13     14       3          1   5.831158   2.685637        1\n",
-       "14     15       3          1   8.277018  11.404585        1\n",
-       "15     16      27          1  18.487879  12.280164        1\n",
-       "16     17       2          1   0.010161   0.191424        1\n",
-       "17     18      14          1  23.393146  25.758367        1\n",
-       "18     19      16          1  15.395352   9.293864        1\n",
-       "19     20      27          1  23.810698   9.011489        1\n",
-       "20     21      16          1   3.466689   1.079331        1\n",
-       "21     22      14          1   0.000000   0.000000        1\n",
-       "22     23      16          1   0.000000   0.000000        1"
+       "   LD_ID  LD_BUS  LD_STATUS  LD_PD  LD_QD  LD_FACT\n",
+       "0      1       5          1     90     30        1\n",
+       "1      2       7          1    100     35        1\n",
+       "2      3       9          1    125     50        1"
       ]
      },
      "execution_count": 3,
@@ -573,10 +173,10 @@
    ],
    "source": [
     "CASE_NAME = \"../data/case9_load.m\"\n",
-    "columns_temlplates = {\n",
-    "    \"load\": [\"LD_ID\", \"LD_BUS\", \"LD_STAUTS\", \"LD_PD\", \"LD_QD\", \"LD_FACT\"]\n",
+    "columns_templates = {\n",
+    "    \"load\": [\"LD_ID\", \"LD_BUS\", \"LD_STATUS\", \"LD_PD\", \"LD_QD\", \"LD_FACT\"]\n",
     "}\n",
-    "cf = CaseFrames(CASE_NAME, allow_any_keys=True, columns_templates=columns_temlplates)\n",
+    "cf = CaseFrames(CASE_NAME, allow_any_keys=True, columns_templates=columns_templates)\n",
     "cf.load"
    ]
   },
@@ -588,7 +188,7 @@
     {
      "data": {
       "text/plain": [
-       "['version', 'baseMVA', 'bus', 'load', 'gen', 'branch', 'gencost']"
+       "['version', 'baseMVA', 'bus', 'gen', 'branch', 'gencost', 'load']"
       ]
      },
      "execution_count": 4,
@@ -624,7 +224,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.12.4"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,

From 32b32f78a18c9ebed4a2b6cc4660ff65bdff295c Mon Sep 17 00:00:00 2001
From: Muhammad Yasirroni <yasirroni@users.noreply.github.com>
Date: Thu, 21 Nov 2024 21:40:27 +0700
Subject: [PATCH 2/3] _read_oct2py_struct use same logic as _read_matpower

---
 matpowercaseframes/core.py        |  4 ++-
 notebooks/load_case69.ipynb       |  2 +-
 tests/test_read_matpower_cases.py | 42 +++++++++++++++++++++++++++++--
 3 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/matpowercaseframes/core.py b/matpowercaseframes/core.py
index 7abef1c..5ba2332 100644
--- a/matpowercaseframes/core.py
+++ b/matpowercaseframes/core.py
@@ -208,7 +208,7 @@ def _read_oct2py_struct(self, struct, allow_any_keys=False):
             if attribute == "version" or attribute == "baseMVA":
                 value = list_
             elif attribute in ["bus_name", "branch_name", "gen_name"]:
-                value = pd.Index(list_, name=attribute)
+                value = pd.Index([name[0] for name in list_], name=attribute)
             else:  # bus, branch, gen, gencost, dcline, dclinecost
                 n_cols = list_.shape[1]
                 value = self._get_dataframe(attribute, list_, n_cols)
@@ -519,6 +519,8 @@ def to_dict(self):
         for attribute in self._attributes:
             if attribute == "version" or attribute == "baseMVA":
                 data[attribute] = getattr(self, attribute)
+            elif attribute in ["bus_name", "branch_name", "gen_name"]:
+                data[attribute] = [list(i) for i in getattr(self, attribute)]
             else:
                 data[attribute] = getattr(self, attribute).values.tolist()
         return data
diff --git a/notebooks/load_case69.ipynb b/notebooks/load_case69.ipynb
index 9345ee1..ed3b4d4 100644
--- a/notebooks/load_case69.ipynb
+++ b/notebooks/load_case69.ipynb
@@ -575,7 +575,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.12.4"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,
diff --git a/tests/test_read_matpower_cases.py b/tests/test_read_matpower_cases.py
index c78dad6..764b491 100644
--- a/tests/test_read_matpower_cases.py
+++ b/tests/test_read_matpower_cases.py
@@ -1,4 +1,6 @@
+import pandas as pd
 from matpower import path_matpower, start_instance
+from pandas.testing import assert_frame_equal, assert_index_equal
 
 from matpowercaseframes import CaseFrames
 
@@ -7,6 +9,22 @@
 """
 
 
+def assert_cf_equal(cf1, cf2):
+    for attribute in cf1.attributes:
+        df1 = getattr(cf1, attribute)
+        df2 = getattr(cf2, attribute)
+        if isinstance(df1, pd.DataFrame):
+            assert_frame_equal(df1, df2)
+        elif isinstance(df1, pd.Index):
+            assert_index_equal(df1, df2)
+        else:
+            try:
+                assert df1 == df2
+            except ValueError as e:
+                print(df1, df2)
+                raise ValueError(e)
+
+
 def test_case9():
     CASE_NAME = "case9.m"
     CaseFrames(CASE_NAME)
@@ -18,8 +36,22 @@ def test_case4_dist():
 
 
 def test_case118():
+    m = start_instance()
+
     CASE_NAME = "case118.m"
-    CaseFrames(CASE_NAME)
+    cf = CaseFrames(CASE_NAME)
+    cf_lc = CaseFrames(CASE_NAME)
+    mpc = m.loadcase(CASE_NAME)
+    cf_mpc = CaseFrames(mpc)
+
+    cf.infer_numpy()
+    cf_lc.infer_numpy()
+    cf_mpc.infer_numpy()
+
+    m.exit()
+
+    assert_cf_equal(cf, cf_lc)
+    assert_cf_equal(cf, cf_mpc)
 
 
 def test_t_case9_dcline():
@@ -28,6 +60,7 @@ def test_t_case9_dcline():
 
 
 def test_loadcase_case16am():
+    # NOTE: case with code inside .m file
     m = start_instance()
     CASE_NAME = "case16am.m"
     CaseFrames(CASE_NAME, load_case_engine=m)
@@ -35,8 +68,13 @@ def test_loadcase_case16am():
 
 
 def test_read_without_ext():
+    CASE_NAME = "case9.m"
+    cf = CaseFrames(CASE_NAME)
+
     CASE_NAME = "case9"
-    CaseFrames(CASE_NAME)
+    cf_no_ext = CaseFrames(CASE_NAME)
+
+    assert_cf_equal(cf, cf_no_ext)
 
 
 def test_read_allow_any_keys():

From 922518ecbf3ace03d04c47658d5e572fc8c2ecbf Mon Sep 17 00:00:00 2001
From: Muhammad Yasirroni <yasirroni@users.noreply.github.com>
Date: Thu, 21 Nov 2024 23:15:09 +0700
Subject: [PATCH 3/3] fix support bus_name to runpf

---
 .gitignore                                    |    2 +
 matpowercaseframes/core.py                    |    3 +-
 notebooks/load_case118.ipynb                  | 1530 +++++++++++++++++
 tests/results/case118/branch.csv              |  187 ++
 tests/results/case118/bus.csv                 |  119 ++
 tests/results/case118/bus_name.csv            |  119 ++
 tests/results/case118/gen.csv                 |   55 +
 tests/results/case118/gencost.csv             |   55 +
 tests/results/{ => case118}/info.csv          |    0
 .../case118_prefix_suffix/mpc.branch_test.csv |  187 ++
 .../mpc.bus_name_test.csv                     |  119 ++
 .../case118_prefix_suffix/mpc.bus_test.csv    |  119 ++
 .../case118_prefix_suffix/mpc.gen_test.csv    |   55 +
 .../mpc.gencost_test.csv                      |   55 +
 .../mpc.info_test.csv                         |    0
 tests/results/{ => case9}/branch.csv          |    0
 tests/results/{ => case9}/bus.csv             |    0
 tests/results/{ => case9}/gen.csv             |    0
 tests/results/{ => case9}/gencost.csv         |    0
 tests/results/case9/info.csv                  |    3 +
 .../mpc.branch_test.csv                       |    0
 .../mpc.bus_test.csv                          |    0
 .../mpc.gen_test.csv                          |    0
 .../mpc.gencost_test.csv                      |    0
 .../case9_prefix_suffix/mpc.info_test.csv     |    3 +
 tests/test_core.py                            |   43 +-
 tests/test_read_matpower_cases.py             |    5 +-
 27 files changed, 2640 insertions(+), 19 deletions(-)
 create mode 100644 notebooks/load_case118.ipynb
 create mode 100644 tests/results/case118/branch.csv
 create mode 100644 tests/results/case118/bus.csv
 create mode 100644 tests/results/case118/bus_name.csv
 create mode 100644 tests/results/case118/gen.csv
 create mode 100644 tests/results/case118/gencost.csv
 rename tests/results/{ => case118}/info.csv (100%)
 create mode 100644 tests/results/case118_prefix_suffix/mpc.branch_test.csv
 create mode 100644 tests/results/case118_prefix_suffix/mpc.bus_name_test.csv
 create mode 100644 tests/results/case118_prefix_suffix/mpc.bus_test.csv
 create mode 100644 tests/results/case118_prefix_suffix/mpc.gen_test.csv
 create mode 100644 tests/results/case118_prefix_suffix/mpc.gencost_test.csv
 rename tests/results/{ => case118_prefix_suffix}/mpc.info_test.csv (100%)
 rename tests/results/{ => case9}/branch.csv (100%)
 rename tests/results/{ => case9}/bus.csv (100%)
 rename tests/results/{ => case9}/gen.csv (100%)
 rename tests/results/{ => case9}/gencost.csv (100%)
 create mode 100644 tests/results/case9/info.csv
 rename tests/results/{ => case9_prefix_suffix}/mpc.branch_test.csv (100%)
 rename tests/results/{ => case9_prefix_suffix}/mpc.bus_test.csv (100%)
 rename tests/results/{ => case9_prefix_suffix}/mpc.gen_test.csv (100%)
 rename tests/results/{ => case9_prefix_suffix}/mpc.gencost_test.csv (100%)
 create mode 100644 tests/results/case9_prefix_suffix/mpc.info_test.csv

diff --git a/.gitignore b/.gitignore
index 99a9a8d..baeba57 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,8 @@ octave-workspace
 
 # Local
 tests/results/*.xlsx
+tests/results/**/*.xlsx
+
 
 # Playground
 playground.ipynb
diff --git a/matpowercaseframes/core.py b/matpowercaseframes/core.py
index 5ba2332..d36e3de 100644
--- a/matpowercaseframes/core.py
+++ b/matpowercaseframes/core.py
@@ -520,7 +520,8 @@ def to_dict(self):
             if attribute == "version" or attribute == "baseMVA":
                 data[attribute] = getattr(self, attribute)
             elif attribute in ["bus_name", "branch_name", "gen_name"]:
-                data[attribute] = [list(i) for i in getattr(self, attribute)]
+                # NOTE: must be in 2D Cell or 2D np.array
+                data[attribute] = np.atleast_2d(getattr(self, attribute).values).T
             else:
                 data[attribute] = getattr(self, attribute).values.tolist()
         return data
diff --git a/notebooks/load_case118.ipynb b/notebooks/load_case118.ipynb
new file mode 100644
index 0000000..e89a500
--- /dev/null
+++ b/notebooks/load_case118.ipynb
@@ -0,0 +1,1530 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%load_ext autoreload\n",
+    "%autoreload 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import os\n",
+    "\n",
+    "from matpower import path_matpower, start_instance\n",
+    "\n",
+    "from matpowercaseframes import CaseFrames"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "m = start_instance()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "CASE_NAME = \"case118.m\""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "function mpc = case118\n",
+      "%CASE118    Power flow data for IEEE 118 bus test case.\n",
+      "%   Please see CASEFORMAT for details on the case file format.\n",
+      "%   This data was converted from IEEE Common Data Format\n",
+      "%   (ieee118cdf.txt) on 15-Oct-2014 by cdf2matp, rev. 2393\n",
+      "%   See end of file for warnings generated during conversion.\n",
+      "%\n",
+      "%   Converted from IEEE CDF file from:\n",
+      "%       https://labs.ece.uw.edu/pstca/\n",
+      "%   With baseKV data take from the PSAP format file from the same site,\n",
+      "%   added manually on 10-Mar-2006.\n",
+      "%   Branches 86--87, 68--116 changed from transmission lines (tap ratio = 0)\n",
+      "%   to transformers (tap ratio = 1) for consistency with bus base voltages\n",
+      "%   on 2019-02-15.\n",
+      "% \n",
+      "%   08/25/93 UW ARCHIVE           100.0  1961 W IEEE 118 Bus Test Case\n",
+      "\n",
+      "%   MATPOWER\n",
+      "\n",
+      "%% MATPOWER Case Format : Version 2\n",
+      "mpc.version = '2';\n",
+      "\n",
+      "%%-----  Power Flow Data  -----%%\n",
+      "%% system MVA base\n",
+      "mpc.baseMVA = 100;\n",
+      "\n",
+      "%% bus data\n",
+      "%\tbus_i\ttype\tPd\tQd\tGs\tBs\tarea\tVm\tVa\tbaseKV\tzone\tVmax\tVmin\n",
+      "mpc.bus = [\n",
+      "\t1\t2\t51\t27\t0\t0\t1\t0.955\t10.67\t138\t1\t1.06\t0.94;\n",
+      "\t2\t1\t20\t9\t0\t0\t1\t0.971\t11.22\t138\t1\t1.06\t0.94;\n",
+      "\t3\t1\t39\t10\t0\t0\t1\t0.968\t11.56\t138\t1\t1.06\t0.94;\n",
+      "\t4\t2\t39\t12\t0\t0\t1\t0.998\t15.28\t138\t1\t1.06\t0.94;\n",
+      "\t5\t1\t0\t0\t0\t-40\t1\t1.002\t15.73\t138\t1\t1.06\t0.94;\n",
+      "\t6\t2\t52\t22\t0\t0\t1\t0.99\t13\t138\t1\t1.06\t0.94;\n",
+      "\t7\t1\t19\t2\t0\t0\t1\t0.989\t12.56\t138\t1\t1.06\t0.94;\n",
+      "\t8\t2\t28\t0\t0\t0\t1\t1.015\t20.77\t345\t1\t1.06\t0.94;\n",
+      "\t9\t1\t0\t0\t0\t0\t1\t1.043\t28.02\t345\t1\t1.06\t0.94;\n",
+      "\t10\t2\t0\t0\t0\t0\t1\t1.05\t35.61\t345\t1\t1.06\t0.94;\n",
+      "\t11\t1\t70\t23\t0\t0\t1\t0.985\t12.72\t138\t1\t1.06\t0.94;\n",
+      "\t12\t2\t47\t10\t0\t0\t1\t0.99\t12.2\t138\t1\t1.06\t0.94;\n",
+      "\t13\t1\t34\t16\t0\t0\t1\t0.968\t11.35\t138\t1\t1.06\t0.94;\n",
+      "\t14\t1\t14\t1\t0\t0\t1\t0.984\t11.5\t138\t1\t1.06\t0.94;\n",
+      "\t15\t2\t90\t30\t0\t0\t1\t0.97\t11.23\t138\t1\t1.06\t0.94;\n",
+      "\t16\t1\t25\t10\t0\t0\t1\t0.984\t11.91\t138\t1\t1.06\t0.94;\n",
+      "\t17\t1\t11\t3\t0\t0\t1\t0.995\t13.74\t138\t1\t1.06\t0.94;\n",
+      "\t18\t2\t60\t34\t0\t0\t1\t0.973\t11.53\t138\t1\t1.06\t0.94;\n",
+      "\t19\t2\t45\t25\t0\t0\t1\t0.963\t11.05\t138\t1\t1.06\t0.94;\n",
+      "\t20\t1\t18\t3\t0\t0\t1\t0.958\t11.93\t138\t1\t1.06\t0.94;\n",
+      "\t21\t1\t14\t8\t0\t0\t1\t0.959\t13.52\t138\t1\t1.06\t0.94;\n",
+      "\t22\t1\t10\t5\t0\t0\t1\t0.97\t16.08\t138\t1\t1.06\t0.94;\n",
+      "\t23\t1\t7\t3\t0\t0\t1\t1\t21\t138\t1\t1.06\t0.94;\n",
+      "\t24\t2\t13\t0\t0\t0\t1\t0.992\t20.89\t138\t1\t1.06\t0.94;\n",
+      "\t25\t2\t0\t0\t0\t0\t1\t1.05\t27.93\t138\t1\t1.06\t0.94;\n",
+      "\t26\t2\t0\t0\t0\t0\t1\t1.015\t29.71\t345\t1\t1.06\t0.94;\n",
+      "\t27\t2\t71\t13\t0\t0\t1\t0.968\t15.35\t138\t1\t1.06\t0.94;\n",
+      "\t28\t1\t17\t7\t0\t0\t1\t0.962\t13.62\t138\t1\t1.06\t0.94;\n",
+      "\t29\t1\t24\t4\t0\t0\t1\t0.963\t12.63\t138\t1\t1.06\t0.94;\n",
+      "\t30\t1\t0\t0\t0\t0\t1\t0.968\t18.79\t345\t1\t1.06\t0.94;\n",
+      "\t31\t2\t43\t27\t0\t0\t1\t0.967\t12.75\t138\t1\t1.06\t0.94;\n",
+      "\t32\t2\t59\t23\t0\t0\t1\t0.964\t14.8\t138\t1\t1.06\t0.94;\n",
+      "\t33\t1\t23\t9\t0\t0\t1\t0.972\t10.63\t138\t1\t1.06\t0.94;\n",
+      "\t34\t2\t59\t26\t0\t14\t1\t0.986\t11.3\t138\t1\t1.06\t0.94;\n",
+      "\t35\t1\t33\t9\t0\t0\t1\t0.981\t10.87\t138\t1\t1.06\t0.94;\n",
+      "\t36\t2\t31\t17\t0\t0\t1\t0.98\t10.87\t138\t1\t1.06\t0.94;\n",
+      "\t37\t1\t0\t0\t0\t-25\t1\t0.992\t11.77\t138\t1\t1.06\t0.94;\n",
+      "\t38\t1\t0\t0\t0\t0\t1\t0.962\t16.91\t345\t1\t1.06\t0.94;\n",
+      "\t39\t1\t27\t11\t0\t0\t1\t0.97\t8.41\t138\t1\t1.06\t0.94;\n",
+      "\t40\t2\t66\t23\t0\t0\t1\t0.97\t7.35\t138\t1\t1.06\t0.94;\n",
+      "\t41\t1\t37\t10\t0\t0\t1\t0.967\t6.92\t138\t1\t1.06\t0.94;\n",
+      "\t42\t2\t96\t23\t0\t0\t1\t0.985\t8.53\t138\t1\t1.06\t0.94;\n",
+      "\t43\t1\t18\t7\t0\t0\t1\t0.978\t11.28\t138\t1\t1.06\t0.94;\n",
+      "\t44\t1\t16\t8\t0\t10\t1\t0.985\t13.82\t138\t1\t1.06\t0.94;\n",
+      "\t45\t1\t53\t22\t0\t10\t1\t0.987\t15.67\t138\t1\t1.06\t0.94;\n",
+      "\t46\t2\t28\t10\t0\t10\t1\t1.005\t18.49\t138\t1\t1.06\t0.94;\n",
+      "\t47\t1\t34\t0\t0\t0\t1\t1.017\t20.73\t138\t1\t1.06\t0.94;\n",
+      "\t48\t1\t20\t11\t0\t15\t1\t1.021\t19.93\t138\t1\t1.06\t0.94;\n",
+      "\t49\t2\t87\t30\t0\t0\t1\t1.025\t20.94\t138\t1\t1.06\t0.94;\n",
+      "\t50\t1\t17\t4\t0\t0\t1\t1.001\t18.9\t138\t1\t1.06\t0.94;\n",
+      "\t51\t1\t17\t8\t0\t0\t1\t0.967\t16.28\t138\t1\t1.06\t0.94;\n",
+      "\t52\t1\t18\t5\t0\t0\t1\t0.957\t15.32\t138\t1\t1.06\t0.94;\n",
+      "\t53\t1\t23\t11\t0\t0\t1\t0.946\t14.35\t138\t1\t1.06\t0.94;\n",
+      "\t54\t2\t113\t32\t0\t0\t1\t0.955\t15.26\t138\t1\t1.06\t0.94;\n",
+      "\t55\t2\t63\t22\t0\t0\t1\t0.952\t14.97\t138\t1\t1.06\t0.94;\n",
+      "\t56\t2\t84\t18\t0\t0\t1\t0.954\t15.16\t138\t1\t1.06\t0.94;\n",
+      "\t57\t1\t12\t3\t0\t0\t1\t0.971\t16.36\t138\t1\t1.06\t0.94;\n",
+      "\t58\t1\t12\t3\t0\t0\t1\t0.959\t15.51\t138\t1\t1.06\t0.94;\n",
+      "\t59\t2\t277\t113\t0\t0\t1\t0.985\t19.37\t138\t1\t1.06\t0.94;\n",
+      "\t60\t1\t78\t3\t0\t0\t1\t0.993\t23.15\t138\t1\t1.06\t0.94;\n",
+      "\t61\t2\t0\t0\t0\t0\t1\t0.995\t24.04\t138\t1\t1.06\t0.94;\n",
+      "\t62\t2\t77\t14\t0\t0\t1\t0.998\t23.43\t138\t1\t1.06\t0.94;\n",
+      "\t63\t1\t0\t0\t0\t0\t1\t0.969\t22.75\t345\t1\t1.06\t0.94;\n",
+      "\t64\t1\t0\t0\t0\t0\t1\t0.984\t24.52\t345\t1\t1.06\t0.94;\n",
+      "\t65\t2\t0\t0\t0\t0\t1\t1.005\t27.65\t345\t1\t1.06\t0.94;\n",
+      "\t66\t2\t39\t18\t0\t0\t1\t1.05\t27.48\t138\t1\t1.06\t0.94;\n",
+      "\t67\t1\t28\t7\t0\t0\t1\t1.02\t24.84\t138\t1\t1.06\t0.94;\n",
+      "\t68\t1\t0\t0\t0\t0\t1\t1.003\t27.55\t345\t1\t1.06\t0.94;\n",
+      "\t69\t3\t0\t0\t0\t0\t1\t1.035\t30\t138\t1\t1.06\t0.94;\n",
+      "\t70\t2\t66\t20\t0\t0\t1\t0.984\t22.58\t138\t1\t1.06\t0.94;\n",
+      "\t71\t1\t0\t0\t0\t0\t1\t0.987\t22.15\t138\t1\t1.06\t0.94;\n",
+      "\t72\t2\t12\t0\t0\t0\t1\t0.98\t20.98\t138\t1\t1.06\t0.94;\n",
+      "\t73\t2\t6\t0\t0\t0\t1\t0.991\t21.94\t138\t1\t1.06\t0.94;\n",
+      "\t74\t2\t68\t27\t0\t12\t1\t0.958\t21.64\t138\t1\t1.06\t0.94;\n",
+      "\t75\t1\t47\t11\t0\t0\t1\t0.967\t22.91\t138\t1\t1.06\t0.94;\n",
+      "\t76\t2\t68\t36\t0\t0\t1\t0.943\t21.77\t138\t1\t1.06\t0.94;\n",
+      "\t77\t2\t61\t28\t0\t0\t1\t1.006\t26.72\t138\t1\t1.06\t0.94;\n",
+      "\t78\t1\t71\t26\t0\t0\t1\t1.003\t26.42\t138\t1\t1.06\t0.94;\n",
+      "\t79\t1\t39\t32\t0\t20\t1\t1.009\t26.72\t138\t1\t1.06\t0.94;\n",
+      "\t80\t2\t130\t26\t0\t0\t1\t1.04\t28.96\t138\t1\t1.06\t0.94;\n",
+      "\t81\t1\t0\t0\t0\t0\t1\t0.997\t28.1\t345\t1\t1.06\t0.94;\n",
+      "\t82\t1\t54\t27\t0\t20\t1\t0.989\t27.24\t138\t1\t1.06\t0.94;\n",
+      "\t83\t1\t20\t10\t0\t10\t1\t0.985\t28.42\t138\t1\t1.06\t0.94;\n",
+      "\t84\t1\t11\t7\t0\t0\t1\t0.98\t30.95\t138\t1\t1.06\t0.94;\n",
+      "\t85\t2\t24\t15\t0\t0\t1\t0.985\t32.51\t138\t1\t1.06\t0.94;\n",
+      "\t86\t1\t21\t10\t0\t0\t1\t0.987\t31.14\t138\t1\t1.06\t0.94;\n",
+      "\t87\t2\t0\t0\t0\t0\t1\t1.015\t31.4\t161\t1\t1.06\t0.94;\n",
+      "\t88\t1\t48\t10\t0\t0\t1\t0.987\t35.64\t138\t1\t1.06\t0.94;\n",
+      "\t89\t2\t0\t0\t0\t0\t1\t1.005\t39.69\t138\t1\t1.06\t0.94;\n",
+      "\t90\t2\t163\t42\t0\t0\t1\t0.985\t33.29\t138\t1\t1.06\t0.94;\n",
+      "\t91\t2\t10\t0\t0\t0\t1\t0.98\t33.31\t138\t1\t1.06\t0.94;\n",
+      "\t92\t2\t65\t10\t0\t0\t1\t0.993\t33.8\t138\t1\t1.06\t0.94;\n",
+      "\t93\t1\t12\t7\t0\t0\t1\t0.987\t30.79\t138\t1\t1.06\t0.94;\n",
+      "\t94\t1\t30\t16\t0\t0\t1\t0.991\t28.64\t138\t1\t1.06\t0.94;\n",
+      "\t95\t1\t42\t31\t0\t0\t1\t0.981\t27.67\t138\t1\t1.06\t0.94;\n",
+      "\t96\t1\t38\t15\t0\t0\t1\t0.993\t27.51\t138\t1\t1.06\t0.94;\n",
+      "\t97\t1\t15\t9\t0\t0\t1\t1.011\t27.88\t138\t1\t1.06\t0.94;\n",
+      "\t98\t1\t34\t8\t0\t0\t1\t1.024\t27.4\t138\t1\t1.06\t0.94;\n",
+      "\t99\t2\t42\t0\t0\t0\t1\t1.01\t27.04\t138\t1\t1.06\t0.94;\n",
+      "\t100\t2\t37\t18\t0\t0\t1\t1.017\t28.03\t138\t1\t1.06\t0.94;\n",
+      "\t101\t1\t22\t15\t0\t0\t1\t0.993\t29.61\t138\t1\t1.06\t0.94;\n",
+      "\t102\t1\t5\t3\t0\t0\t1\t0.991\t32.3\t138\t1\t1.06\t0.94;\n",
+      "\t103\t2\t23\t16\t0\t0\t1\t1.001\t24.44\t138\t1\t1.06\t0.94;\n",
+      "\t104\t2\t38\t25\t0\t0\t1\t0.971\t21.69\t138\t1\t1.06\t0.94;\n",
+      "\t105\t2\t31\t26\t0\t20\t1\t0.965\t20.57\t138\t1\t1.06\t0.94;\n",
+      "\t106\t1\t43\t16\t0\t0\t1\t0.962\t20.32\t138\t1\t1.06\t0.94;\n",
+      "\t107\t2\t50\t12\t0\t6\t1\t0.952\t17.53\t138\t1\t1.06\t0.94;\n",
+      "\t108\t1\t2\t1\t0\t0\t1\t0.967\t19.38\t138\t1\t1.06\t0.94;\n",
+      "\t109\t1\t8\t3\t0\t0\t1\t0.967\t18.93\t138\t1\t1.06\t0.94;\n",
+      "\t110\t2\t39\t30\t0\t6\t1\t0.973\t18.09\t138\t1\t1.06\t0.94;\n",
+      "\t111\t2\t0\t0\t0\t0\t1\t0.98\t19.74\t138\t1\t1.06\t0.94;\n",
+      "\t112\t2\t68\t13\t0\t0\t1\t0.975\t14.99\t138\t1\t1.06\t0.94;\n",
+      "\t113\t2\t6\t0\t0\t0\t1\t0.993\t13.74\t138\t1\t1.06\t0.94;\n",
+      "\t114\t1\t8\t3\t0\t0\t1\t0.96\t14.46\t138\t1\t1.06\t0.94;\n",
+      "\t115\t1\t22\t7\t0\t0\t1\t0.96\t14.46\t138\t1\t1.06\t0.94;\n",
+      "\t116\t2\t184\t0\t0\t0\t1\t1.005\t27.12\t138\t1\t1.06\t0.94;\n",
+      "\t117\t1\t20\t8\t0\t0\t1\t0.974\t10.67\t138\t1\t1.06\t0.94;\n",
+      "\t118\t1\t33\t15\t0\t0\t1\t0.949\t21.92\t138\t1\t1.06\t0.94;\n",
+      "];\n",
+      "\n",
+      "%% generator data\n",
+      "%\tbus\tPg\tQg\tQmax\tQmin\tVg\tmBase\tstatus\tPmax\tPmin\tPc1\tPc2\tQc1min\tQc1max\tQc2min\tQc2max\tramp_agc\tramp_10\tramp_30\tramp_q\tapf\n",
+      "mpc.gen = [\n",
+      "\t1\t0\t0\t15\t-5\t0.955\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t4\t0\t0\t300\t-300\t0.998\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t6\t0\t0\t50\t-13\t0.99\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t8\t0\t0\t300\t-300\t1.015\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t10\t450\t0\t200\t-147\t1.05\t100\t1\t550\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t12\t85\t0\t120\t-35\t0.99\t100\t1\t185\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t15\t0\t0\t30\t-10\t0.97\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t18\t0\t0\t50\t-16\t0.973\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t19\t0\t0\t24\t-8\t0.962\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t24\t0\t0\t300\t-300\t0.992\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t25\t220\t0\t140\t-47\t1.05\t100\t1\t320\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t26\t314\t0\t1000\t-1000\t1.015\t100\t1\t414\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t27\t0\t0\t300\t-300\t0.968\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t31\t7\t0\t300\t-300\t0.967\t100\t1\t107\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t32\t0\t0\t42\t-14\t0.963\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t34\t0\t0\t24\t-8\t0.984\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t36\t0\t0\t24\t-8\t0.98\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t40\t0\t0\t300\t-300\t0.97\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t42\t0\t0\t300\t-300\t0.985\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t46\t19\t0\t100\t-100\t1.005\t100\t1\t119\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t49\t204\t0\t210\t-85\t1.025\t100\t1\t304\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t54\t48\t0\t300\t-300\t0.955\t100\t1\t148\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t55\t0\t0\t23\t-8\t0.952\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t56\t0\t0\t15\t-8\t0.954\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t59\t155\t0\t180\t-60\t0.985\t100\t1\t255\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t61\t160\t0\t300\t-100\t0.995\t100\t1\t260\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t62\t0\t0\t20\t-20\t0.998\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t65\t391\t0\t200\t-67\t1.005\t100\t1\t491\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t66\t392\t0\t200\t-67\t1.05\t100\t1\t492\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t69\t516.4\t0\t300\t-300\t1.035\t100\t1\t805.2\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t70\t0\t0\t32\t-10\t0.984\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t72\t0\t0\t100\t-100\t0.98\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t73\t0\t0\t100\t-100\t0.991\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t74\t0\t0\t9\t-6\t0.958\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t76\t0\t0\t23\t-8\t0.943\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t77\t0\t0\t70\t-20\t1.006\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t80\t477\t0\t280\t-165\t1.04\t100\t1\t577\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t85\t0\t0\t23\t-8\t0.985\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t87\t4\t0\t1000\t-100\t1.015\t100\t1\t104\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t89\t607\t0\t300\t-210\t1.005\t100\t1\t707\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t90\t0\t0\t300\t-300\t0.985\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t91\t0\t0\t100\t-100\t0.98\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t92\t0\t0\t9\t-3\t0.99\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t99\t0\t0\t100\t-100\t1.01\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t100\t252\t0\t155\t-50\t1.017\t100\t1\t352\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t103\t40\t0\t40\t-15\t1.01\t100\t1\t140\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t104\t0\t0\t23\t-8\t0.971\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t105\t0\t0\t23\t-8\t0.965\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t107\t0\t0\t200\t-200\t0.952\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t110\t0\t0\t23\t-8\t0.973\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t111\t36\t0\t1000\t-100\t0.98\t100\t1\t136\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t112\t0\t0\t1000\t-100\t0.975\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t113\t0\t0\t200\t-100\t0.993\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "\t116\t0\t0\t1000\t-1000\t1.005\t100\t1\t100\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0\t0;\n",
+      "];\n",
+      "\n",
+      "%% branch data\n",
+      "%\tfbus\ttbus\tr\tx\tb\trateA\trateB\trateC\tratio\tangle\tstatus\tangmin\tangmax\n",
+      "mpc.branch = [\n",
+      "\t1\t2\t0.0303\t0.0999\t0.0254\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t1\t3\t0.0129\t0.0424\t0.01082\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t4\t5\t0.00176\t0.00798\t0.0021\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t3\t5\t0.0241\t0.108\t0.0284\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t5\t6\t0.0119\t0.054\t0.01426\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t6\t7\t0.00459\t0.0208\t0.0055\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t8\t9\t0.00244\t0.0305\t1.162\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t8\t5\t0\t0.0267\t0\t0\t0\t0\t0.985\t0\t1\t-360\t360;\n",
+      "\t9\t10\t0.00258\t0.0322\t1.23\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t4\t11\t0.0209\t0.0688\t0.01748\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t5\t11\t0.0203\t0.0682\t0.01738\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t11\t12\t0.00595\t0.0196\t0.00502\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t2\t12\t0.0187\t0.0616\t0.01572\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t3\t12\t0.0484\t0.16\t0.0406\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t7\t12\t0.00862\t0.034\t0.00874\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t11\t13\t0.02225\t0.0731\t0.01876\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
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+      "\t92\t102\t0.0123\t0.0559\t0.01464\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t101\t102\t0.0246\t0.112\t0.0294\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t100\t103\t0.016\t0.0525\t0.0536\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t100\t104\t0.0451\t0.204\t0.0541\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t103\t104\t0.0466\t0.1584\t0.0407\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t103\t105\t0.0535\t0.1625\t0.0408\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t100\t106\t0.0605\t0.229\t0.062\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t104\t105\t0.00994\t0.0378\t0.00986\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t105\t106\t0.014\t0.0547\t0.01434\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t105\t107\t0.053\t0.183\t0.0472\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t105\t108\t0.0261\t0.0703\t0.01844\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t106\t107\t0.053\t0.183\t0.0472\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t108\t109\t0.0105\t0.0288\t0.0076\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t103\t110\t0.03906\t0.1813\t0.0461\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t109\t110\t0.0278\t0.0762\t0.0202\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t110\t111\t0.022\t0.0755\t0.02\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t110\t112\t0.0247\t0.064\t0.062\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t17\t113\t0.00913\t0.0301\t0.00768\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t32\t113\t0.0615\t0.203\t0.0518\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t32\t114\t0.0135\t0.0612\t0.01628\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t27\t115\t0.0164\t0.0741\t0.01972\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t114\t115\t0.0023\t0.0104\t0.00276\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t68\t116\t0.00034\t0.00405\t0.164\t0\t0\t0\t1\t0\t1\t-360\t360;\n",
+      "\t12\t117\t0.0329\t0.14\t0.0358\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t75\t118\t0.0145\t0.0481\t0.01198\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "\t76\t118\t0.0164\t0.0544\t0.01356\t0\t0\t0\t0\t0\t1\t-360\t360;\n",
+      "];\n",
+      "\n",
+      "%%-----  OPF Data  -----%%\n",
+      "%% generator cost data\n",
+      "%\t1\tstartup\tshutdown\tn\tx1\ty1\t...\txn\tyn\n",
+      "%\t2\tstartup\tshutdown\tn\tc(n-1)\t...\tc0\n",
+      "mpc.gencost = [\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.0222222222\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.117647059\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.0454545455\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.0318471338\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t1.42857143\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.526315789\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.0490196078\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.208333333\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.064516129\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.0625\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.0255754476\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.0255102041\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.0193648335\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.0209643606\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t2.5\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.0164744646\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.0396825397\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.25\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.277777778\t20\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "\t2\t0\t0\t3\t0.01\t40\t0;\n",
+      "];\n",
+      "\n",
+      "%% bus names\n",
+      "mpc.bus_name = {\n",
+      "\t'Riversde  V2';\n",
+      "\t'Pokagon   V2';\n",
+      "\t'HickryCk  V2';\n",
+      "\t'NwCarlsl  V2';\n",
+      "\t'Olive     V2';\n",
+      "\t'Kankakee  V2';\n",
+      "\t'JacksnRd  V2';\n",
+      "\t'Olive     V1';\n",
+      "\t'Bequine   V1';\n",
+      "\t'Breed     V1';\n",
+      "\t'SouthBnd  V2';\n",
+      "\t'TwinBrch  V2';\n",
+      "\t'Concord   V2';\n",
+      "\t'GoshenJt  V2';\n",
+      "\t'FtWayne   V2';\n",
+      "\t'N. E.     V2';\n",
+      "\t'Sorenson  V2';\n",
+      "\t'McKinley  V2';\n",
+      "\t'Lincoln   V2';\n",
+      "\t'Adams     V2';\n",
+      "\t'Jay       V2';\n",
+      "\t'Randolph  V2';\n",
+      "\t'CollCrnr  V2';\n",
+      "\t'Trenton   V2';\n",
+      "\t'TannrsCk  V2';\n",
+      "\t'TannrsCk  V1';\n",
+      "\t'Madison   V2';\n",
+      "\t'Mullin    V2';\n",
+      "\t'Grant     V2';\n",
+      "\t'Sorenson  V1';\n",
+      "\t'DeerCrk   V2';\n",
+      "\t'Delaware  V2';\n",
+      "\t'Haviland  V2';\n",
+      "\t'Rockhill  V2';\n",
+      "\t'WestLima  V2';\n",
+      "\t'Sterling  V2';\n",
+      "\t'EastLima  V2';\n",
+      "\t'EastLima  V1';\n",
+      "\t'NwLibrty  V2';\n",
+      "\t'West End  V2';\n",
+      "\t'S.Tiffin  V2';\n",
+      "\t'Howard    V2';\n",
+      "\t'S.Kenton  V2';\n",
+      "\t'WMVernon  V2';\n",
+      "\t'N.Newark  V2';\n",
+      "\t'W.Lancst  V2';\n",
+      "\t'Crooksvl  V2';\n",
+      "\t'Zanesvll  V2';\n",
+      "\t'Philo     V2';\n",
+      "\t'WCambrdg  V2';\n",
+      "\t'Newcmrst  V2';\n",
+      "\t'SCoshoct  V2';\n",
+      "\t'Wooster   V2';\n",
+      "\t'Torrey    V2';\n",
+      "\t'Wagenhls  V2';\n",
+      "\t'Sunnysde  V2';\n",
+      "\t'WNwPhil1  V2';\n",
+      "\t'WNwPhil2  V2';\n",
+      "\t'Tidd      V2';\n",
+      "\t'SWKammer  V2';\n",
+      "\t'W.Kammer  V2';\n",
+      "\t'Natrium   V2';\n",
+      "\t'Tidd      V1';\n",
+      "\t'Kammer    V1';\n",
+      "\t'Muskngum  V1';\n",
+      "\t'Muskngum  V2';\n",
+      "\t'Summerfl  V2';\n",
+      "\t'Sporn     V1';\n",
+      "\t'Sporn     V2';\n",
+      "\t'Portsmth  V2';\n",
+      "\t'NPortsmt  V2';\n",
+      "\t'Hillsbro  V2';\n",
+      "\t'Sargents  V2';\n",
+      "\t'Bellefnt  V2';\n",
+      "\t'SthPoint  V2';\n",
+      "\t'Darrah    V2';\n",
+      "\t'Turner    V2';\n",
+      "\t'Chemical  V2';\n",
+      "\t'CapitlHl  V2';\n",
+      "\t'CabinCrk  V2';\n",
+      "\t'Kanawha   V1';\n",
+      "\t'Logan     V2';\n",
+      "\t'Sprigg    V2';\n",
+      "\t'BetsyLne  V2';\n",
+      "\t'BeaverCk  V2';\n",
+      "\t'Hazard    V2';\n",
+      "\t'Pinevlle  V3';\n",
+      "\t'Fremont   V2';\n",
+      "\t'ClinchRv  V2';\n",
+      "\t'Holston   V2';\n",
+      "\t'HolstonT  V2';\n",
+      "\t'Saltvlle  V2';\n",
+      "\t'Tazewell  V2';\n",
+      "\t'Switchbk  V2';\n",
+      "\t'Caldwell  V2';\n",
+      "\t'Baileysv  V2';\n",
+      "\t'Sundial   V2';\n",
+      "\t'Bradley   V2';\n",
+      "\t'Hinton    V2';\n",
+      "\t'Glen Lyn  V2';\n",
+      "\t'Wythe     V2';\n",
+      "\t'Smythe    V2';\n",
+      "\t'Claytor   V2';\n",
+      "\t'Hancock   V2';\n",
+      "\t'Roanoke   V2';\n",
+      "\t'Cloverdl  V2';\n",
+      "\t'Reusens   V2';\n",
+      "\t'Blaine    V2';\n",
+      "\t'Franklin  V2';\n",
+      "\t'Fieldale  V2';\n",
+      "\t'DanRiver  V2';\n",
+      "\t'Danville  V2';\n",
+      "\t'Deer Crk  V2';\n",
+      "\t'WMedford  V2';\n",
+      "\t'Medford   V2';\n",
+      "\t'KygerCrk  V2';\n",
+      "\t'Corey     V2';\n",
+      "\t'WHuntngd  V2';\n",
+      "};\n",
+      "\n",
+      "% Warnings from cdf2matp conversion:\n",
+      "%\n",
+      "% ***** check the title format in the first line of the cdf file.\n",
+      "% ***** negative Pg at bus 4 treated as Pd\n",
+      "% ***** negative Pg at bus 8 treated as Pd\n",
+      "% ***** negative Pg at bus 24 treated as Pd\n",
+      "% ***** negative Pg at bus 27 treated as Pd\n",
+      "% ***** negative Pg at bus 40 treated as Pd\n",
+      "% ***** negative Pg at bus 42 treated as Pd\n",
+      "% ***** negative Pg at bus 72 treated as Pd\n",
+      "% ***** negative Pg at bus 73 treated as Pd\n",
+      "% ***** negative Pg at bus 90 treated as Pd\n",
+      "% ***** negative Pg at bus 91 treated as Pd\n",
+      "% ***** negative Pg at bus 99 treated as Pd\n",
+      "% ***** negative Pg at bus 107 treated as Pd\n",
+      "% ***** negative Pg at bus 112 treated as Pd\n",
+      "% ***** negative Pg at bus 113 treated as Pd\n",
+      "% ***** negative Pg at bus 116 treated as Pd\n",
+      "% ***** Insufficient generation, setting Pmax at slack bus (bus 69) to 805.2\n",
+      "% ***** MVA limit of branch 1 - 2 not given, set to 0\n",
+      "% ***** MVA limit of branch 1 - 3 not given, set to 0\n",
+      "% ***** MVA limit of branch 4 - 5 not given, set to 0\n",
+      "% ***** MVA limit of branch 3 - 5 not given, set to 0\n",
+      "% ***** MVA limit of branch 5 - 6 not given, set to 0\n",
+      "% ***** MVA limit of branch 6 - 7 not given, set to 0\n",
+      "% ***** MVA limit of branch 8 - 9 not given, set to 0\n",
+      "% ***** MVA limit of branch 8 - 5 not given, set to 0\n",
+      "% ***** MVA limit of branch 9 - 10 not given, set to 0\n",
+      "% ***** MVA limit of branch 4 - 11 not given, set to 0\n",
+      "% ***** MVA limit of branch 5 - 11 not given, set to 0\n",
+      "% ***** MVA limit of branch 11 - 12 not given, set to 0\n",
+      "% ***** MVA limit of branch 2 - 12 not given, set to 0\n",
+      "% ***** MVA limit of branch 3 - 12 not given, set to 0\n",
+      "% ***** MVA limit of branch 7 - 12 not given, set to 0\n",
+      "% ***** MVA limit of branch 11 - 13 not given, set to 0\n",
+      "% ***** MVA limit of branch 12 - 14 not given, set to 0\n",
+      "% ***** MVA limit of branch 13 - 15 not given, set to 0\n",
+      "% ***** MVA limit of branch 14 - 15 not given, set to 0\n",
+      "% ***** MVA limit of branch 12 - 16 not given, set to 0\n",
+      "% ***** MVA limit of branch 15 - 17 not given, set to 0\n",
+      "% ***** MVA limit of branch 16 - 17 not given, set to 0\n",
+      "% ***** MVA limit of branch 17 - 18 not given, set to 0\n",
+      "% ***** MVA limit of branch 18 - 19 not given, set to 0\n",
+      "% ***** MVA limit of branch 19 - 20 not given, set to 0\n",
+      "% ***** MVA limit of branch 15 - 19 not given, set to 0\n",
+      "% ***** MVA limit of branch 20 - 21 not given, set to 0\n",
+      "% ***** MVA limit of branch 21 - 22 not given, set to 0\n",
+      "% ***** MVA limit of branch 22 - 23 not given, set to 0\n",
+      "% ***** MVA limit of branch 23 - 24 not given, set to 0\n",
+      "% ***** MVA limit of branch 23 - 25 not given, set to 0\n",
+      "% ***** MVA limit of branch 26 - 25 not given, set to 0\n",
+      "% ***** MVA limit of branch 25 - 27 not given, set to 0\n",
+      "% ***** MVA limit of branch 27 - 28 not given, set to 0\n",
+      "% ***** MVA limit of branch 28 - 29 not given, set to 0\n",
+      "% ***** MVA limit of branch 30 - 17 not given, set to 0\n",
+      "% ***** MVA limit of branch 8 - 30 not given, set to 0\n",
+      "% ***** MVA limit of branch 26 - 30 not given, set to 0\n",
+      "% ***** MVA limit of branch 17 - 31 not given, set to 0\n",
+      "% ***** MVA limit of branch 29 - 31 not given, set to 0\n",
+      "% ***** MVA limit of branch 23 - 32 not given, set to 0\n",
+      "% ***** MVA limit of branch 31 - 32 not given, set to 0\n",
+      "% ***** MVA limit of branch 27 - 32 not given, set to 0\n",
+      "% ***** MVA limit of branch 15 - 33 not given, set to 0\n",
+      "% ***** MVA limit of branch 19 - 34 not given, set to 0\n",
+      "% ***** MVA limit of branch 35 - 36 not given, set to 0\n",
+      "% ***** MVA limit of branch 35 - 37 not given, set to 0\n",
+      "% ***** MVA limit of branch 33 - 37 not given, set to 0\n",
+      "% ***** MVA limit of branch 34 - 36 not given, set to 0\n",
+      "% ***** MVA limit of branch 34 - 37 not given, set to 0\n",
+      "% ***** MVA limit of branch 38 - 37 not given, set to 0\n",
+      "% ***** MVA limit of branch 37 - 39 not given, set to 0\n",
+      "% ***** MVA limit of branch 37 - 40 not given, set to 0\n",
+      "% ***** MVA limit of branch 30 - 38 not given, set to 0\n",
+      "% ***** MVA limit of branch 39 - 40 not given, set to 0\n",
+      "% ***** MVA limit of branch 40 - 41 not given, set to 0\n",
+      "% ***** MVA limit of branch 40 - 42 not given, set to 0\n",
+      "% ***** MVA limit of branch 41 - 42 not given, set to 0\n",
+      "% ***** MVA limit of branch 43 - 44 not given, set to 0\n",
+      "% ***** MVA limit of branch 34 - 43 not given, set to 0\n",
+      "% ***** MVA limit of branch 44 - 45 not given, set to 0\n",
+      "% ***** MVA limit of branch 45 - 46 not given, set to 0\n",
+      "% ***** MVA limit of branch 46 - 47 not given, set to 0\n",
+      "% ***** MVA limit of branch 46 - 48 not given, set to 0\n",
+      "% ***** MVA limit of branch 47 - 49 not given, set to 0\n",
+      "% ***** MVA limit of branch 42 - 49 not given, set to 0\n",
+      "% ***** MVA limit of branch 42 - 49 not given, set to 0\n",
+      "% ***** MVA limit of branch 45 - 49 not given, set to 0\n",
+      "% ***** MVA limit of branch 48 - 49 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 50 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 51 not given, set to 0\n",
+      "% ***** MVA limit of branch 51 - 52 not given, set to 0\n",
+      "% ***** MVA limit of branch 52 - 53 not given, set to 0\n",
+      "% ***** MVA limit of branch 53 - 54 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 54 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 54 not given, set to 0\n",
+      "% ***** MVA limit of branch 54 - 55 not given, set to 0\n",
+      "% ***** MVA limit of branch 54 - 56 not given, set to 0\n",
+      "% ***** MVA limit of branch 55 - 56 not given, set to 0\n",
+      "% ***** MVA limit of branch 56 - 57 not given, set to 0\n",
+      "% ***** MVA limit of branch 50 - 57 not given, set to 0\n",
+      "% ***** MVA limit of branch 56 - 58 not given, set to 0\n",
+      "% ***** MVA limit of branch 51 - 58 not given, set to 0\n",
+      "% ***** MVA limit of branch 54 - 59 not given, set to 0\n",
+      "% ***** MVA limit of branch 56 - 59 not given, set to 0\n",
+      "% ***** MVA limit of branch 56 - 59 not given, set to 0\n",
+      "% ***** MVA limit of branch 55 - 59 not given, set to 0\n",
+      "% ***** MVA limit of branch 59 - 60 not given, set to 0\n",
+      "% ***** MVA limit of branch 59 - 61 not given, set to 0\n",
+      "% ***** MVA limit of branch 60 - 61 not given, set to 0\n",
+      "% ***** MVA limit of branch 60 - 62 not given, set to 0\n",
+      "% ***** MVA limit of branch 61 - 62 not given, set to 0\n",
+      "% ***** MVA limit of branch 63 - 59 not given, set to 0\n",
+      "% ***** MVA limit of branch 63 - 64 not given, set to 0\n",
+      "% ***** MVA limit of branch 64 - 61 not given, set to 0\n",
+      "% ***** MVA limit of branch 38 - 65 not given, set to 0\n",
+      "% ***** MVA limit of branch 64 - 65 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 66 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 66 not given, set to 0\n",
+      "% ***** MVA limit of branch 62 - 66 not given, set to 0\n",
+      "% ***** MVA limit of branch 62 - 67 not given, set to 0\n",
+      "% ***** MVA limit of branch 65 - 66 not given, set to 0\n",
+      "% ***** MVA limit of branch 66 - 67 not given, set to 0\n",
+      "% ***** MVA limit of branch 65 - 68 not given, set to 0\n",
+      "% ***** MVA limit of branch 47 - 69 not given, set to 0\n",
+      "% ***** MVA limit of branch 49 - 69 not given, set to 0\n",
+      "% ***** MVA limit of branch 68 - 69 not given, set to 0\n",
+      "% ***** MVA limit of branch 69 - 70 not given, set to 0\n",
+      "% ***** MVA limit of branch 24 - 70 not given, set to 0\n",
+      "% ***** MVA limit of branch 70 - 71 not given, set to 0\n",
+      "% ***** MVA limit of branch 24 - 72 not given, set to 0\n",
+      "% ***** MVA limit of branch 71 - 72 not given, set to 0\n",
+      "% ***** MVA limit of branch 71 - 73 not given, set to 0\n",
+      "% ***** MVA limit of branch 70 - 74 not given, set to 0\n",
+      "% ***** MVA limit of branch 70 - 75 not given, set to 0\n",
+      "% ***** MVA limit of branch 69 - 75 not given, set to 0\n",
+      "% ***** MVA limit of branch 74 - 75 not given, set to 0\n",
+      "% ***** MVA limit of branch 76 - 77 not given, set to 0\n",
+      "% ***** MVA limit of branch 69 - 77 not given, set to 0\n",
+      "% ***** MVA limit of branch 75 - 77 not given, set to 0\n",
+      "% ***** MVA limit of branch 77 - 78 not given, set to 0\n",
+      "% ***** MVA limit of branch 78 - 79 not given, set to 0\n",
+      "% ***** MVA limit of branch 77 - 80 not given, set to 0\n",
+      "% ***** MVA limit of branch 77 - 80 not given, set to 0\n",
+      "% ***** MVA limit of branch 79 - 80 not given, set to 0\n",
+      "% ***** MVA limit of branch 68 - 81 not given, set to 0\n",
+      "% ***** MVA limit of branch 81 - 80 not given, set to 0\n",
+      "% ***** MVA limit of branch 77 - 82 not given, set to 0\n",
+      "% ***** MVA limit of branch 82 - 83 not given, set to 0\n",
+      "% ***** MVA limit of branch 83 - 84 not given, set to 0\n",
+      "% ***** MVA limit of branch 83 - 85 not given, set to 0\n",
+      "% ***** MVA limit of branch 84 - 85 not given, set to 0\n",
+      "% ***** MVA limit of branch 85 - 86 not given, set to 0\n",
+      "% ***** MVA limit of branch 86 - 87 not given, set to 0\n",
+      "% ***** MVA limit of branch 85 - 88 not given, set to 0\n",
+      "% ***** MVA limit of branch 85 - 89 not given, set to 0\n",
+      "% ***** MVA limit of branch 88 - 89 not given, set to 0\n",
+      "% ***** MVA limit of branch 89 - 90 not given, set to 0\n",
+      "% ***** MVA limit of branch 89 - 90 not given, set to 0\n",
+      "% ***** MVA limit of branch 90 - 91 not given, set to 0\n",
+      "% ***** MVA limit of branch 89 - 92 not given, set to 0\n",
+      "% ***** MVA limit of branch 89 - 92 not given, set to 0\n",
+      "% ***** MVA limit of branch 91 - 92 not given, set to 0\n",
+      "% ***** MVA limit of branch 92 - 93 not given, set to 0\n",
+      "% ***** MVA limit of branch 92 - 94 not given, set to 0\n",
+      "% ***** MVA limit of branch 93 - 94 not given, set to 0\n",
+      "% ***** MVA limit of branch 94 - 95 not given, set to 0\n",
+      "% ***** MVA limit of branch 80 - 96 not given, set to 0\n",
+      "% ***** MVA limit of branch 82 - 96 not given, set to 0\n",
+      "% ***** MVA limit of branch 94 - 96 not given, set to 0\n",
+      "% ***** MVA limit of branch 80 - 97 not given, set to 0\n",
+      "% ***** MVA limit of branch 80 - 98 not given, set to 0\n",
+      "% ***** MVA limit of branch 80 - 99 not given, set to 0\n",
+      "% ***** MVA limit of branch 92 - 100 not given, set to 0\n",
+      "% ***** MVA limit of branch 94 - 100 not given, set to 0\n",
+      "% ***** MVA limit of branch 95 - 96 not given, set to 0\n",
+      "% ***** MVA limit of branch 96 - 97 not given, set to 0\n",
+      "% ***** MVA limit of branch 98 - 100 not given, set to 0\n",
+      "% ***** MVA limit of branch 99 - 100 not given, set to 0\n",
+      "% ***** MVA limit of branch 100 - 101 not given, set to 0\n",
+      "% ***** MVA limit of branch 92 - 102 not given, set to 0\n",
+      "% ***** MVA limit of branch 101 - 102 not given, set to 0\n",
+      "% ***** MVA limit of branch 100 - 103 not given, set to 0\n",
+      "% ***** MVA limit of branch 100 - 104 not given, set to 0\n",
+      "% ***** MVA limit of branch 103 - 104 not given, set to 0\n",
+      "% ***** MVA limit of branch 103 - 105 not given, set to 0\n",
+      "% ***** MVA limit of branch 100 - 106 not given, set to 0\n",
+      "% ***** MVA limit of branch 104 - 105 not given, set to 0\n",
+      "% ***** MVA limit of branch 105 - 106 not given, set to 0\n",
+      "% ***** MVA limit of branch 105 - 107 not given, set to 0\n",
+      "% ***** MVA limit of branch 105 - 108 not given, set to 0\n",
+      "% ***** MVA limit of branch 106 - 107 not given, set to 0\n",
+      "% ***** MVA limit of branch 108 - 109 not given, set to 0\n",
+      "% ***** MVA limit of branch 103 - 110 not given, set to 0\n",
+      "% ***** MVA limit of branch 109 - 110 not given, set to 0\n",
+      "% ***** MVA limit of branch 110 - 111 not given, set to 0\n",
+      "% ***** MVA limit of branch 110 - 112 not given, set to 0\n",
+      "% ***** MVA limit of branch 17 - 113 not given, set to 0\n",
+      "% ***** MVA limit of branch 32 - 113 not given, set to 0\n",
+      "% ***** MVA limit of branch 32 - 114 not given, set to 0\n",
+      "% ***** MVA limit of branch 27 - 115 not given, set to 0\n",
+      "% ***** MVA limit of branch 114 - 115 not given, set to 0\n",
+      "% ***** MVA limit of branch 68 - 116 not given, set to 0\n",
+      "% ***** MVA limit of branch 12 - 117 not given, set to 0\n",
+      "% ***** MVA limit of branch 75 - 118 not given, set to 0\n",
+      "% ***** MVA limit of branch 76 - 118 not given, set to 0\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "case_path = os.path.join(path_matpower, \"data\", CASE_NAME)\n",
+    "with open(case_path, \"r\") as f:\n",
+    "    print(f.read())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div>\n",
+       "<style scoped>\n",
+       "    .dataframe tbody tr th:only-of-type {\n",
+       "        vertical-align: middle;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe tbody tr th {\n",
+       "        vertical-align: top;\n",
+       "    }\n",
+       "\n",
+       "    .dataframe thead th {\n",
+       "        text-align: right;\n",
+       "    }\n",
+       "</style>\n",
+       "<table border=\"1\" class=\"dataframe\">\n",
+       "  <thead>\n",
+       "    <tr style=\"text-align: right;\">\n",
+       "      <th></th>\n",
+       "      <th>BUS_I</th>\n",
+       "      <th>BUS_TYPE</th>\n",
+       "      <th>PD</th>\n",
+       "      <th>QD</th>\n",
+       "      <th>GS</th>\n",
+       "      <th>BS</th>\n",
+       "      <th>BUS_AREA</th>\n",
+       "      <th>VM</th>\n",
+       "      <th>VA</th>\n",
+       "      <th>BASE_KV</th>\n",
+       "      <th>ZONE</th>\n",
+       "      <th>VMAX</th>\n",
+       "      <th>VMIN</th>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>bus_name</th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "      <th></th>\n",
+       "    </tr>\n",
+       "  </thead>\n",
+       "  <tbody>\n",
+       "    <tr>\n",
+       "      <th>Riversde  V2</th>\n",
+       "      <td>1.0</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>51.0</td>\n",
+       "      <td>27.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.955</td>\n",
+       "      <td>10.67</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Pokagon   V2</th>\n",
+       "      <td>2.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>20.0</td>\n",
+       "      <td>9.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.971</td>\n",
+       "      <td>11.22</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>HickryCk  V2</th>\n",
+       "      <td>3.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>39.0</td>\n",
+       "      <td>10.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.968</td>\n",
+       "      <td>11.56</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>NwCarlsl  V2</th>\n",
+       "      <td>4.0</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>39.0</td>\n",
+       "      <td>12.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.998</td>\n",
+       "      <td>15.28</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Olive     V2</th>\n",
+       "      <td>5.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>-40.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.002</td>\n",
+       "      <td>15.73</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>...</th>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "      <td>...</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>WMedford  V2</th>\n",
+       "      <td>114.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>3.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.960</td>\n",
+       "      <td>14.46</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Medford   V2</th>\n",
+       "      <td>115.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>22.0</td>\n",
+       "      <td>7.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.960</td>\n",
+       "      <td>14.46</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>KygerCrk  V2</th>\n",
+       "      <td>116.0</td>\n",
+       "      <td>2.0</td>\n",
+       "      <td>184.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.005</td>\n",
+       "      <td>27.12</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>Corey     V2</th>\n",
+       "      <td>117.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>20.0</td>\n",
+       "      <td>8.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.974</td>\n",
+       "      <td>10.67</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>WHuntngd  V2</th>\n",
+       "      <td>118.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>33.0</td>\n",
+       "      <td>15.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>0.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>0.949</td>\n",
+       "      <td>21.92</td>\n",
+       "      <td>138.0</td>\n",
+       "      <td>1.0</td>\n",
+       "      <td>1.06</td>\n",
+       "      <td>0.94</td>\n",
+       "    </tr>\n",
+       "  </tbody>\n",
+       "</table>\n",
+       "<p>118 rows × 13 columns</p>\n",
+       "</div>"
+      ],
+      "text/plain": [
+       "              BUS_I  BUS_TYPE     PD    QD   GS    BS  BUS_AREA     VM     VA  \\\n",
+       "bus_name                                                                        \n",
+       "Riversde  V2    1.0       2.0   51.0  27.0  0.0   0.0       1.0  0.955  10.67   \n",
+       "Pokagon   V2    2.0       1.0   20.0   9.0  0.0   0.0       1.0  0.971  11.22   \n",
+       "HickryCk  V2    3.0       1.0   39.0  10.0  0.0   0.0       1.0  0.968  11.56   \n",
+       "NwCarlsl  V2    4.0       2.0   39.0  12.0  0.0   0.0       1.0  0.998  15.28   \n",
+       "Olive     V2    5.0       1.0    0.0   0.0  0.0 -40.0       1.0  1.002  15.73   \n",
+       "...             ...       ...    ...   ...  ...   ...       ...    ...    ...   \n",
+       "WMedford  V2  114.0       1.0    8.0   3.0  0.0   0.0       1.0  0.960  14.46   \n",
+       "Medford   V2  115.0       1.0   22.0   7.0  0.0   0.0       1.0  0.960  14.46   \n",
+       "KygerCrk  V2  116.0       2.0  184.0   0.0  0.0   0.0       1.0  1.005  27.12   \n",
+       "Corey     V2  117.0       1.0   20.0   8.0  0.0   0.0       1.0  0.974  10.67   \n",
+       "WHuntngd  V2  118.0       1.0   33.0  15.0  0.0   0.0       1.0  0.949  21.92   \n",
+       "\n",
+       "              BASE_KV  ZONE  VMAX  VMIN  \n",
+       "bus_name                                 \n",
+       "Riversde  V2    138.0   1.0  1.06  0.94  \n",
+       "Pokagon   V2    138.0   1.0  1.06  0.94  \n",
+       "HickryCk  V2    138.0   1.0  1.06  0.94  \n",
+       "NwCarlsl  V2    138.0   1.0  1.06  0.94  \n",
+       "Olive     V2    138.0   1.0  1.06  0.94  \n",
+       "...               ...   ...   ...   ...  \n",
+       "WMedford  V2    138.0   1.0  1.06  0.94  \n",
+       "Medford   V2    138.0   1.0  1.06  0.94  \n",
+       "KygerCrk  V2    138.0   1.0  1.06  0.94  \n",
+       "Corey     V2    138.0   1.0  1.06  0.94  \n",
+       "WHuntngd  V2    138.0   1.0  1.06  0.94  \n",
+       "\n",
+       "[118 rows x 13 columns]"
+      ]
+     },
+     "execution_count": 6,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "cf = CaseFrames(CASE_NAME, load_case_engine=m, allow_any_keys=True)\n",
+    "cf.bus"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "\n",
+      "MATPOWER Version 8.0, 17-May-2024\n",
+      "Power Flow -- AC-polar-power formulation\n",
+      "\n",
+      "Newton's method converged in 3 iterations.\n",
+      "PF successful\n",
+      "\n",
+      "Converged in 0.18 seconds\n",
+      "================================================================================\n",
+      "|     System Summary                                                           |\n",
+      "================================================================================\n",
+      "\n",
+      "How many?                How much?              P (MW)            Q (MVAr)\n",
+      "---------------------    -------------------  -------------  -----------------\n",
+      "Buses            118     Total Gen Capacity    9966.2       -7345.0 to 11777.0\n",
+      "Generators        54     On-line Capacity      9966.2       -7345.0 to 11777.0\n",
+      "Committed Gens    54     Generation (actual)   4374.9             795.7\n",
+      "Loads             99     Load                  4242.0            1438.0\n",
+      "  Fixed           99       Fixed               4242.0            1438.0\n",
+      "  Dispatchable     0       Dispatchable          -0.0 of -0.0      -0.0\n",
+      "Shunts            14     Shunt (inj)             -0.0              84.4\n",
+      "Branches         186     Losses (I^2 * Z)       132.86            783.79\n",
+      "Transformers      11     Branch Charging (inj)     -             1341.7\n",
+      "Inter-ties         0     Total Inter-tie Flow     0.0               0.0\n",
+      "Areas              1\n",
+      "\n",
+      "                          Minimum                      Maximum\n",
+      "                 -------------------------  --------------------------------\n",
+      "Voltage Magnitude   0.943 p.u. @ bus 76         1.050 p.u. @ bus 10\n",
+      "Voltage Angle       7.05 deg   @ bus 41        39.75 deg   @ bus 89\n",
+      "P Losses (I^2*R)             -                  6.40 MW    @ line 25-27\n",
+      "Q Losses (I^2*X)             -                 59.22 MVAr  @ line 9-10\n",
+      "\n",
+      "================================================================================\n",
+      "|     Bus Data                                                                 |\n",
+      "================================================================================\n",
+      " Bus      Voltage          Generation             Load\n",
+      "  #   Mag(pu) Ang(deg)   P (MW)   Q (MVAr)   P (MW)   Q (MVAr)\n",
+      "----- ------- --------  --------  --------  --------  --------\n",
+      "    1  0.955   10.973      0.00     -3.10     51.00     27.00\n",
+      "    2  0.971   11.513       -         -       20.00      9.00\n",
+      "    3  0.968   11.856       -         -       39.00     10.00\n",
+      "    4  0.998   15.574      0.00    -15.01     39.00     12.00\n",
+      "    5  1.002   16.019       -         -         -         -\n",
+      "    6  0.990   13.292      0.00     15.93     52.00     22.00\n",
+      "    7  0.989   12.847       -         -       19.00      2.00\n",
+      "    8  1.015   21.041      0.00     63.14     28.00      0.00\n",
+      "    9  1.043   28.295       -         -         -         -\n",
+      "   10  1.050   35.876    450.00    -51.04       -         -\n",
+      "   11  0.985   13.006       -         -       70.00     23.00\n",
+      "   12  0.990   12.489     85.00     91.29     47.00     10.00\n",
+      "   13  0.968   11.630       -         -       34.00     16.00\n",
+      "   14  0.984   11.771       -         -       14.00      1.00\n",
+      "   15  0.970   11.474      0.00      7.16     90.00     30.00\n",
+      "   16  0.984   12.187       -         -       25.00     10.00\n",
+      "   17  0.995   13.995       -         -       11.00      3.00\n",
+      "   18  0.973   11.781      0.00     28.43     60.00     34.00\n",
+      "   19  0.962   11.315      0.00    -14.27     45.00     25.00\n",
+      "   20  0.957   12.191       -         -       18.00      3.00\n",
+      "   21  0.958   13.778       -         -       14.00      8.00\n",
+      "   22  0.969   16.332       -         -       10.00      5.00\n",
+      "   23  0.999   21.249       -         -        7.00      3.00\n",
+      "   24  0.992   21.114      0.00    -14.91     13.00      0.00\n",
+      "   25  1.050   28.180    220.00     50.04       -         -\n",
+      "   26  1.015   29.960    314.00     10.12       -         -\n",
+      "   27  0.968   15.604      0.00      3.98     71.00     13.00\n",
+      "   28  0.962   13.879       -         -       17.00      7.00\n",
+      "   29  0.963   12.885       -         -       24.00      4.00\n",
+      "   30  0.985   19.034       -         -         -         -\n",
+      "   31  0.967   13.002      7.00     32.59     43.00     27.00\n",
+      "   32  0.963   15.061      0.00    -16.28     59.00     23.00\n",
+      "   33  0.971   10.854       -         -       23.00      9.00\n",
+      "   34  0.984   11.511      0.00    -20.83     59.00     26.00\n",
+      "   35  0.980   11.055       -         -       33.00      9.00\n",
+      "   36  0.980   11.056      0.00      7.73     31.00     17.00\n",
+      "   37  0.991   11.967       -         -         -         -\n",
+      "   38  0.961   17.108       -         -         -         -\n",
+      "   39  0.970    8.577       -         -       27.00     11.00\n",
+      "   40  0.970    7.496      0.00     28.45     66.00     23.00\n",
+      "   41  0.967    7.052       -         -       37.00     10.00\n",
+      "   42  0.985    8.653      0.00     41.03     96.00     23.00\n",
+      "   43  0.977   11.460       -         -       18.00      7.00\n",
+      "   44  0.984   13.943       -         -       16.00      8.00\n",
+      "   45  0.986   15.773       -         -       53.00     22.00\n",
+      "   46  1.005   18.576     19.00     -5.03     28.00     10.00\n",
+      "   47  1.017   20.799       -         -       34.00      0.00\n",
+      "   48  1.021   20.019       -         -       20.00     11.00\n",
+      "   49  1.025   21.022    204.00    115.85     87.00     30.00\n",
+      "   50  1.001   18.983       -         -       17.00      4.00\n",
+      "   51  0.967   16.364       -         -       17.00      8.00\n",
+      "   52  0.957   15.411       -         -       18.00      5.00\n",
+      "   53  0.946   14.436       -         -       23.00     11.00\n",
+      "   54  0.955   15.348     48.00      3.90    113.00     32.00\n",
+      "   55  0.952   15.058      0.00      4.66     63.00     22.00\n",
+      "   56  0.954   15.245      0.00     -2.29     84.00     18.00\n",
+      "   57  0.971   16.449       -         -       12.00      3.00\n",
+      "   58  0.959   15.592       -         -       12.00      3.00\n",
+      "   59  0.985   19.448    155.00     76.83    277.00    113.00\n",
+      "   60  0.993   23.230       -         -       78.00      3.00\n",
+      "   61  0.995   24.121    160.00    -40.39       -         -\n",
+      "   62  0.998   23.505      0.00      1.26     77.00     14.00\n",
+      "   63  0.969   22.827       -         -         -         -\n",
+      "   64  0.984   24.593       -         -         -         -\n",
+      "   65  1.005   27.719    391.00     81.51       -         -\n",
+      "   66  1.050   27.559    392.00     -1.96     39.00     18.00\n",
+      "   67  1.020   24.919       -         -       28.00      7.00\n",
+      "   68  1.003   27.598       -         -         -         -\n",
+      "   69  1.035   30.000*   513.86    -82.42       -         -\n",
+      "   70  0.984   22.618      0.00      9.67     66.00     20.00\n",
+      "   71  0.987   22.207       -         -         -         -\n",
+      "   72  0.980   21.109      0.00    -11.13     12.00      0.00\n",
+      "   73  0.991   21.995      0.00      9.65      6.00      0.00\n",
+      "   74  0.958   21.669      0.00     -5.63     68.00     27.00\n",
+      "   75  0.967   22.930       -         -       47.00     11.00\n",
+      "   76  0.943   21.799      0.00      5.27     68.00     36.00\n",
+      "   77  1.006   26.751      0.00     12.17     61.00     28.00\n",
+      "   78  1.003   26.447       -         -       71.00     26.00\n",
+      "   79  1.009   26.745       -         -       39.00     32.00\n",
+      "   80  1.040   28.990    477.00    105.47    130.00     26.00\n",
+      "   81  0.997   28.145       -         -         -         -\n",
+      "   82  0.989   27.272       -         -       54.00     27.00\n",
+      "   83  0.984   28.464       -         -       20.00     10.00\n",
+      "   84  0.980   31.000       -         -       11.00      7.00\n",
+      "   85  0.985   32.556      0.00     -5.61     24.00     15.00\n",
+      "   86  0.987   31.186       -         -       21.00     10.00\n",
+      "   87  1.015   31.445      4.00     11.02       -         -\n",
+      "   88  0.987   35.690       -         -       48.00     10.00\n",
+      "   89  1.005   39.748    607.00     -5.90       -         -\n",
+      "   90  0.985   33.338      0.00     59.31    163.00     42.00\n",
+      "   91  0.980   33.351      0.00    -13.09     10.00      0.00\n",
+      "   92  0.990   33.881      0.00    -13.96     65.00     10.00\n",
+      "   93  0.985   30.849       -         -       12.00      7.00\n",
+      "   94  0.990   28.682       -         -       30.00     16.00\n",
+      "   95  0.980   27.710       -         -       42.00     31.00\n",
+      "   96  0.992   27.543       -         -       38.00     15.00\n",
+      "   97  1.011   27.916       -         -       15.00      9.00\n",
+      "   98  1.024   27.433       -         -       34.00      8.00\n",
+      "   99  1.010   27.067      0.00    -17.54     42.00      0.00\n",
+      "  100  1.017   28.059    252.00     95.55     37.00     18.00\n",
+      "  101  0.991   29.647       -         -       22.00     15.00\n",
+      "  102  0.989   32.365       -         -        5.00      3.00\n",
+      "  103  1.010   24.318     40.00     75.42     23.00     16.00\n",
+      "  104  0.971   21.748      0.00      2.39     38.00     25.00\n",
+      "  105  0.965   20.644      0.00    -18.33     31.00     26.00\n",
+      "  106  0.961   20.383       -         -       43.00     16.00\n",
+      "  107  0.952   17.583      0.00      6.56     50.00     12.00\n",
+      "  108  0.966   19.443       -         -        2.00      1.00\n",
+      "  109  0.967   18.991       -         -        8.00      3.00\n",
+      "  110  0.973   18.144      0.00      0.28     39.00     30.00\n",
+      "  111  0.980   19.789     36.00     -1.84       -         -\n",
+      "  112  0.975   15.045      0.00     41.51     68.00     13.00\n",
+      "  113  0.993   13.993      0.00      6.75      6.00      0.00\n",
+      "  114  0.960   14.726       -         -        8.00      3.00\n",
+      "  115  0.960   14.718       -         -       22.00      7.00\n",
+      "  116  1.005   27.163      0.00     51.32    184.00      0.00\n",
+      "  117  0.974   10.948       -         -       20.00      8.00\n",
+      "  118  0.949   21.942       -         -       33.00     15.00\n",
+      "                        --------  --------  --------  --------\n",
+      "               Total:   4374.86    795.68   4242.00   1438.00\n",
+      "\n",
+      "================================================================================\n",
+      "|     Branch Data                                                              |\n",
+      "================================================================================\n",
+      "Brnch   From   To    From Bus Injection   To Bus Injection     Loss (I^2 * Z)\n",
+      "  #     Bus    Bus    P (MW)   Q (MVAr)   P (MW)   Q (MVAr)   P (MW)   Q (MVAr)\n",
+      "-----  -----  -----  --------  --------  --------  --------  --------  --------\n",
+      "   1      1      2    -12.35    -13.04     12.45     11.01     0.098      0.32\n",
+      "   2      1      3    -38.65    -17.06     38.90     16.88     0.250      0.82\n",
+      "   3      4      5   -103.23    -26.79    103.43     27.49     0.201      0.91\n",
+      "   4      3      5    -68.11    -14.49     69.35     17.28     1.238      5.55\n",
+      "   5      5      6     88.47      4.11    -87.54     -1.30     0.930      4.22\n",
+      "   6      6      7     35.54     -4.77    -35.48      4.51     0.060      0.27\n",
+      "   7      8      9   -440.64    -89.73    445.25     24.43     4.620     57.75\n",
+      "   8      8      5    338.47    124.73   -338.47    -92.01     0.000     32.72\n",
+      "   9      9     10   -445.25    -24.43    450.00    -51.04     4.745     59.22\n",
+      "  10      4     11     64.23     -0.22    -63.36      1.35     0.866      2.85\n",
+      "  11      5     11     77.22      2.97    -76.02     -0.62     1.209      4.06\n",
+      "  12     11     12     34.29    -35.14    -34.15     35.13     0.147      0.48\n",
+      "  13      2     12    -32.45    -20.01     32.73     19.42     0.282      0.93\n",
+      "  14      3     12     -9.79    -12.40      9.89      8.86     0.106      0.35\n",
+      "  15      7     12     16.48     -6.51    -16.45      5.76     0.027      0.11\n",
+      "  16     11     13     35.09     11.41    -34.77    -12.16     0.317      1.04\n",
+      "  17     12     14     18.31      2.62    -18.24     -4.14     0.076      0.25\n",
+      "  18     13     15      0.77     -3.84     -0.77     -2.04     0.001      0.00\n",
+      "  19     14     15      4.24      3.14     -4.21     -7.83     0.030      0.10\n",
+      "  20     12     16      7.51      4.30     -7.49     -6.32     0.018      0.07\n",
+      "  21     15     17   -103.86    -24.27    105.44     25.22     1.582      5.24\n",
+      "  22     16     17    -17.51     -3.68     17.66     -0.30     0.145      0.57\n",
+      "  23     17     18     80.27     24.76    -79.39    -22.40     0.881      3.62\n",
+      "  24     18     19     19.39     16.83    -19.31    -17.55     0.080      0.35\n",
+      "  25     19     20    -10.62      5.17     10.67     -7.71     0.042      0.20\n",
+      "  26     15     19     11.53     15.72    -11.47    -16.50     0.050      0.17\n",
+      "  27     20     21    -28.67      4.71     28.84     -5.90     0.171      0.79\n",
+      "  28     21     22    -42.84     -2.10     43.26      1.76     0.418      1.94\n",
+      "  29     22     23    -53.26     -6.76     54.30      7.69     1.042      4.84\n",
+      "  30     23     24      8.28     10.42     -8.25    -15.24     0.032      0.12\n",
+      "  31     23     25   -162.56    -26.16    166.76     38.63     4.201     21.55\n",
+      "  32     26     25     90.29     21.58    -90.29    -18.64     0.000      2.94\n",
+      "  33     25     27    143.52     30.06   -137.13    -15.25     6.398     32.79\n",
+      "  34     27     28     32.88     -0.59    -32.66     -0.43     0.221      0.99\n",
+      "  35     28     29     15.66     -6.57    -15.58      4.64     0.070      0.28\n",
+      "  36     30     17    231.19     92.97   -231.19    -70.10     0.000     22.87\n",
+      "  37      8     30     74.16     28.15    -73.81    -75.42     0.355      4.15\n",
+      "  38     26     30    223.71    -11.46   -219.73    -36.57     3.978     42.82\n",
+      "  39     17     31     14.77     11.52    -14.57    -14.73     0.192      0.63\n",
+      "  40     29     31     -8.42     -8.64      8.43      7.92     0.016      0.05\n",
+      "  41     23     32     92.98      5.05    -90.20     -6.24     2.781     10.12\n",
+      "  42     31     32    -29.86     12.40     30.20    -13.60     0.343      1.13\n",
+      "  43     27     32     12.53      1.76    -12.49     -3.43     0.040      0.13\n",
+      "  44     15     33      7.31     -4.42     -7.28      1.49     0.025      0.08\n",
+      "  45     19     34     -3.59    -10.40      3.65      4.60     0.056      0.18\n",
+      "  46     35     36      0.84      4.04     -0.84     -4.29     0.000      0.00\n",
+      "  47     35     37    -33.84    -13.04     33.99     12.43     0.149      0.67\n",
+      "  48     33     37    -15.72    -10.49     15.86      7.46     0.143      0.49\n",
+      "  49     34     36     30.25      4.70    -30.16     -4.98     0.085      0.26\n",
+      "  50     34     37    -94.31    -44.20     94.59     44.29     0.286      1.05\n",
+      "  51     38     37    243.37    113.60   -243.37    -88.01     0.000     25.59\n",
+      "  52     37     39     54.91      2.98    -53.92     -2.30     0.992      3.28\n",
+      "  53     37     40     44.02     -3.68    -42.85      2.96     1.172      3.32\n",
+      "  54     30     38     62.35     19.03    -62.09    -55.98     0.260      3.03\n",
+      "  55     39     40     26.92     -8.70    -26.76      7.75     0.154      0.51\n",
+      "  56     40     41     15.45      1.19    -15.41     -2.21     0.037      0.13\n",
+      "  57     40     42    -11.84     -6.45     11.93      2.30     0.093      0.31\n",
+      "  58     41     42    -21.59     -7.79     21.81      5.24     0.221      0.73\n",
+      "  59     43     44    -16.59     -1.33     16.77     -3.79     0.177      0.71\n",
+      "  60     34     43      1.41      1.63     -1.41     -5.67     0.007      0.03\n",
+      "  61     44     45    -32.77      5.48     33.03     -6.62     0.258      1.04\n",
+      "  62     45     46    -36.33     -3.57     36.87      2.12     0.544      1.84\n",
+      "  63     46     47    -31.11     -1.22     31.48     -0.79     0.364      1.22\n",
+      "  64     46     48    -14.76     -5.83     14.90      1.42     0.137      0.43\n",
+      "  65     47     49     -9.54    -10.84      9.57      9.28     0.035      0.12\n",
+      "  66     42     49    -64.87      5.24     68.04      0.37     3.167     14.30\n",
+      "  67     42     49    -64.87      5.24     68.04      0.37     3.167     14.30\n",
+      "  68     45     49    -49.70     -2.08     51.44      2.31     1.737      4.72\n",
+      "  69     48     49    -34.90      3.21     35.11     -3.93     0.212      0.60\n",
+      "  70     49     50     53.66     13.43    -52.88    -13.14     0.785      2.21\n",
+      "  71     49     51     66.63     20.44    -64.35    -17.40     2.282      6.43\n",
+      "  72     51     52     28.56      6.25    -28.37     -6.99     0.187      0.54\n",
+      "  73     52     53     10.37      1.99    -10.32     -5.45     0.054      0.22\n",
+      "  74     53     54    -12.68     -5.55     12.74      2.99     0.052      0.24\n",
+      "  75     49     54     37.77     13.07    -36.58    -15.60     1.191      4.71\n",
+      "  76     49     54     37.74     11.20    -36.38    -13.79     1.365      4.57\n",
+      "  77     54     55      7.07      1.46     -7.06     -3.25     0.010      0.04\n",
+      "  78     54     56     18.53      4.35    -18.52     -4.98     0.011      0.04\n",
+      "  79     55     56    -21.42     -5.82     21.45      5.57     0.026      0.08\n",
+      "  80     56     57    -22.99     -9.10     23.21      7.49     0.223      0.63\n",
+      "  81     50     57     35.88      9.14    -35.21    -10.49     0.664      1.88\n",
+      "  82     56     58     -6.67     -3.69      6.69      1.53     0.019      0.05\n",
+      "  83     51     58     18.79      3.16    -18.69     -4.53     0.101      0.28\n",
+      "  84     54     59    -30.38     -7.51     30.90      4.26     0.522      2.38\n",
+      "  85     56     59    -27.96     -4.17     28.67      0.99     0.711      2.16\n",
+      "  86     56     59    -29.31     -3.91     30.07      1.13     0.760      2.26\n",
+      "  87     55     59    -34.52     -8.26     35.16      5.88     0.640      2.91\n",
+      "  88     59     60    -43.32      3.57     43.94     -4.40     0.623      2.85\n",
+      "  89     59     61    -51.72      5.03     52.64     -4.63     0.920      4.21\n",
+      "  90     60     61   -112.07      8.52    112.41     -8.23     0.338      1.73\n",
+      "  91     60     62     -9.87     -7.11      9.89      5.74     0.017      0.08\n",
+      "  92     61     62     25.49    -13.86    -25.42     13.20     0.069      0.31\n",
+      "  93     63     59    151.77     67.48   -151.77    -57.02     0.000     10.46\n",
+      "  94     63     64   -151.77    -67.48    152.25     52.51     0.482      5.61\n",
+      "  95     64     61     30.54     13.99    -30.54    -13.68     0.000      0.30\n",
+      "  96     38     65   -181.28    -57.63    184.49     -8.37     3.213     35.16\n",
+      "  97     64     65   -182.79    -66.49    183.78     40.06     0.993     11.15\n",
+      "  98     49     66   -132.22      4.33    135.22      8.32     3.001     15.32\n",
+      "  99     49     66   -132.22      4.33    135.22      8.32     3.001     15.32\n",
+      " 100     62     66    -37.16    -17.26     37.93     14.68     0.768      3.48\n",
+      " 101     62     67    -24.30    -14.41     24.50     12.15     0.196      0.89\n",
+      " 102     65     66      8.54     72.25     -8.54    -70.55     0.000      1.70\n",
+      " 103     66     67     53.16     19.27    -52.50    -19.15     0.662      3.00\n",
+      " 104     65     68     14.18    -22.43    -14.18    -41.85     0.004      0.05\n",
+      " 105     47     69    -55.94     11.63     58.68    -10.07     2.744      9.03\n",
+      " 106     49     69    -46.54     10.65     48.78    -12.06     2.242      7.37\n",
+      " 107     68     69   -125.80    112.82    125.80   -103.64     0.000      9.18\n",
+      " 108     69     70    108.38     16.07   -104.94    -13.98     3.432     14.53\n",
+      " 109     24     70     -6.22     -2.97      6.22     -6.80     0.001      0.18\n",
+      " 110     70     71     16.65    -12.38    -16.61     11.68     0.038      0.15\n",
+      " 111     24     72      1.47      3.31     -1.45     -7.98     0.017      0.07\n",
+      " 112     71     72     10.60     -0.94    -10.55     -3.15     0.052      0.21\n",
+      " 113     71     73      6.01    -10.74     -6.00      9.65     0.012      0.07\n",
+      " 114     70     74     16.21     12.89    -16.01    -15.42     0.196      0.65\n",
+      " 115     70     75     -0.13      9.94      0.19    -13.17     0.060      0.20\n",
+      " 116     69     75    110.01     20.49   -105.16    -18.31     4.854     14.62\n",
+      " 117     74     75    -51.99     -6.19     52.36      6.44     0.367      1.21\n",
+      " 118     76     77    -61.15    -21.04     63.21     24.39     2.055      6.85\n",
+      " 119     69     77     62.21      6.78    -61.05    -13.80     1.160      3.79\n",
+      " 120     75     77    -34.61     -9.55     35.41      7.38     0.803      2.67\n",
+      " 121     77     78     45.39      6.61    -45.32     -7.63     0.079      0.26\n",
+      " 122     78     79    -25.68    -18.37     25.74     17.95     0.053      0.24\n",
+      " 123     77     80    -96.57    -37.41     98.34     37.53     1.773      5.06\n",
+      " 124     77     80    -44.37    -20.55     45.05     20.59     0.681      2.43\n",
+      " 125     79     80    -64.74    -29.58     65.50     31.08     0.767      3.46\n",
+      " 126     68     81    -44.15     -4.61     44.20    -75.54     0.056      0.65\n",
+      " 127     81     80    -44.20     75.54     44.20    -73.05     0.000      2.49\n",
+      " 128     77     82     -3.03     17.55      3.17    -25.28     0.141      0.40\n",
+      " 129     82     83    -47.22     24.39     47.56    -26.99     0.335      1.09\n",
+      " 130     83     84    -24.79     14.69     25.35    -15.99     0.560      1.18\n",
+      " 131     83     85    -42.77     12.00     43.67    -12.29     0.895      3.08\n",
+      " 132     84     85    -36.35      8.99     36.79     -9.24     0.445      0.94\n",
+      " 133     85     86     17.17     -7.35    -17.05      5.09     0.119      0.42\n",
+      " 134     86     87     -3.95    -15.09      4.00     11.02     0.053      0.39\n",
+      " 135     85     88    -50.39      7.60     50.93     -7.53     0.540      2.75\n",
+      " 136     85     89    -71.24      0.68     72.49      3.73     1.252      9.06\n",
+      " 137     88     89    -98.93     -2.47    100.33      7.70     1.396      7.15\n",
+      " 138     89     90     58.22     -4.72    -56.48      5.81     1.740      6.32\n",
+      " 139     89     90    110.83     -5.44   -107.93      7.07     2.894     12.12\n",
+      " 140     90     91      1.41      4.42     -1.40     -6.46     0.008      0.03\n",
+      " 141     89     92    201.54     -2.10   -197.56     16.96     3.981     20.31\n",
+      " 142     89     92     63.59     -5.07    -62.02      7.29     1.577      6.34\n",
+      " 143     91     92     -8.60     -6.63      8.64      3.59     0.040      0.13\n",
+      " 144     92     93     57.62    -11.66    -56.72     12.50     0.904      2.97\n",
+      " 145     92     94     52.17    -15.21    -50.75     15.91     1.422      4.67\n",
+      " 146     93     94     44.72    -19.50    -44.18     19.44     0.539      1.77\n",
+      " 147     94     95     40.86      9.01    -40.62     -9.31     0.237      0.78\n",
+      " 148     80     96     18.97     21.07    -18.66    -24.62     0.304      1.55\n",
+      " 149     82     96     -9.94     -6.57      9.96      1.29     0.019      0.06\n",
+      " 150     94     96     19.79     -9.82    -19.66      7.98     0.128      0.41\n",
+      " 151     80     97     26.42     25.75    -26.18    -27.19     0.243      1.24\n",
+      " 152     80     98     28.95      8.32    -28.74    -10.43     0.206      0.93\n",
+      " 153     80     99     19.56      8.17    -19.35    -12.94     0.213      0.96\n",
+      " 154     92    100     31.50    -16.53    -30.71     15.37     0.790      3.59\n",
+      " 155     94    100      4.28    -50.54     -3.87     45.81     0.415      1.35\n",
+      " 156     95     96     -1.38    -21.69      1.45     20.51     0.079      0.25\n",
+      " 157     96     97    -11.10    -20.16     11.18     18.19     0.085      0.43\n",
+      " 158     98    100     -5.26      2.43      5.28     -7.30     0.020      0.09\n",
+      " 159     99    100    -22.65     -4.59     22.74      2.79     0.093      0.42\n",
+      " 160    100    101    -16.74     22.90     16.98    -25.13     0.237      1.08\n",
+      " 161     92    102     44.65     -8.39    -44.39      8.13     0.258      1.17\n",
+      " 162    101    102    -38.98     10.13     39.39    -11.13     0.414      1.88\n",
+      " 163    100    103    121.75    -22.15   -119.40     24.36     2.351      7.72\n",
+      " 164    100    104     56.18     10.65    -54.73     -9.41     1.455      6.58\n",
+      " 165    103    104     32.45     13.87    -31.85    -15.83     0.597      2.03\n",
+      " 166    103    105     43.35     12.85    -42.25    -13.48     1.103      3.35\n",
+      " 167    100    106     60.36      9.48    -58.14     -7.12     2.225      8.42\n",
+      " 168    104    105     48.58      2.63    -48.33     -2.61     0.250      0.95\n",
+      " 169    105    106      8.86      3.88     -8.85     -5.15     0.015      0.06\n",
+      " 170    105    107     26.75     -2.37    -26.35     -0.55     0.407      1.41\n",
+      " 171    105    108     23.97    -11.13    -23.77      9.92     0.191      0.51\n",
+      " 172    106    107     23.98     -3.73    -23.65      0.55     0.331      1.14\n",
+      " 173    108    109     21.77    -10.92    -21.71     10.39     0.066      0.18\n",
+      " 174    103    110     60.60      8.35    -59.15     -6.15     1.450      6.73\n",
+      " 175    109    110     13.71    -13.39    -13.61     11.77     0.102      0.28\n",
+      " 176    110    111    -35.70      0.96     36.00     -1.84     0.297      1.02\n",
+      " 177    110    112     69.46    -30.61    -68.00     28.51     1.459      3.78\n",
+      " 178     17    113      2.06      5.90     -2.05     -6.65     0.004      0.01\n",
+      " 179     32    113      4.12    -17.80     -3.95     13.40     0.168      0.56\n",
+      " 180     32    114      9.37      1.78     -9.36     -3.22     0.014      0.06\n",
+      " 181     27    115     20.72      5.06    -20.64     -6.53     0.081      0.37\n",
+      " 182    114    115      1.36      0.22     -1.36     -0.47     0.000      0.00\n",
+      " 183     68    116    184.13    -66.36   -184.00     51.32     0.126      1.50\n",
+      " 184     12    117     20.15      5.20    -20.00     -8.00     0.153      0.65\n",
+      " 185     75    118     40.21     23.59    -39.87    -23.56     0.341      1.13\n",
+      " 186     76    118     -6.85     -9.69      6.87      8.56     0.024      0.08\n",
+      "                                                             --------  --------\n",
+      "                                                    Total:   132.863    783.79\n"
+     ]
+    }
+   ],
+   "source": [
+    "_ = m.runpf(cf.to_mpc())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "env",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.12.7"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/tests/results/case118/branch.csv b/tests/results/case118/branch.csv
new file mode 100644
index 0000000..fa5cbe1
--- /dev/null
+++ b/tests/results/case118/branch.csv
@@ -0,0 +1,187 @@
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diff --git a/tests/results/case118/bus.csv b/tests/results/case118/bus.csv
new file mode 100644
index 0000000..9a718c6
--- /dev/null
+++ b/tests/results/case118/bus.csv
@@ -0,0 +1,119 @@
+bus_name,BUS_I,BUS_TYPE,PD,QD,GS,BS,BUS_AREA,VM,VA,BASE_KV,ZONE,VMAX,VMIN
+Riversde  V2,1,2,51,27,0,0,1,0.955,10.67,138,1,1.06,0.94
+Pokagon   V2,2,1,20,9,0,0,1,0.971,11.22,138,1,1.06,0.94
+HickryCk  V2,3,1,39,10,0,0,1,0.968,11.56,138,1,1.06,0.94
+NwCarlsl  V2,4,2,39,12,0,0,1,0.998,15.28,138,1,1.06,0.94
+Olive     V2,5,1,0,0,0,-40,1,1.002,15.73,138,1,1.06,0.94
+Kankakee  V2,6,2,52,22,0,0,1,0.99,13.0,138,1,1.06,0.94
+JacksnRd  V2,7,1,19,2,0,0,1,0.989,12.56,138,1,1.06,0.94
+Olive     V1,8,2,28,0,0,0,1,1.015,20.77,345,1,1.06,0.94
+Bequine   V1,9,1,0,0,0,0,1,1.043,28.02,345,1,1.06,0.94
+Breed     V1,10,2,0,0,0,0,1,1.05,35.61,345,1,1.06,0.94
+SouthBnd  V2,11,1,70,23,0,0,1,0.985,12.72,138,1,1.06,0.94
+TwinBrch  V2,12,2,47,10,0,0,1,0.99,12.2,138,1,1.06,0.94
+Concord   V2,13,1,34,16,0,0,1,0.968,11.35,138,1,1.06,0.94
+GoshenJt  V2,14,1,14,1,0,0,1,0.984,11.5,138,1,1.06,0.94
+FtWayne   V2,15,2,90,30,0,0,1,0.97,11.23,138,1,1.06,0.94
+N. E.     V2,16,1,25,10,0,0,1,0.984,11.91,138,1,1.06,0.94
+Sorenson  V2,17,1,11,3,0,0,1,0.995,13.74,138,1,1.06,0.94
+McKinley  V2,18,2,60,34,0,0,1,0.973,11.53,138,1,1.06,0.94
+Lincoln   V2,19,2,45,25,0,0,1,0.963,11.05,138,1,1.06,0.94
+Adams     V2,20,1,18,3,0,0,1,0.958,11.93,138,1,1.06,0.94
+Jay       V2,21,1,14,8,0,0,1,0.959,13.52,138,1,1.06,0.94
+Randolph  V2,22,1,10,5,0,0,1,0.97,16.08,138,1,1.06,0.94
+CollCrnr  V2,23,1,7,3,0,0,1,1.0,21.0,138,1,1.06,0.94
+Trenton   V2,24,2,13,0,0,0,1,0.992,20.89,138,1,1.06,0.94
+TannrsCk  V2,25,2,0,0,0,0,1,1.05,27.93,138,1,1.06,0.94
+TannrsCk  V1,26,2,0,0,0,0,1,1.015,29.71,345,1,1.06,0.94
+Madison   V2,27,2,71,13,0,0,1,0.968,15.35,138,1,1.06,0.94
+Mullin    V2,28,1,17,7,0,0,1,0.962,13.62,138,1,1.06,0.94
+Grant     V2,29,1,24,4,0,0,1,0.963,12.63,138,1,1.06,0.94
+Sorenson  V1,30,1,0,0,0,0,1,0.968,18.79,345,1,1.06,0.94
+DeerCrk   V2,31,2,43,27,0,0,1,0.967,12.75,138,1,1.06,0.94
+Delaware  V2,32,2,59,23,0,0,1,0.964,14.8,138,1,1.06,0.94
+Haviland  V2,33,1,23,9,0,0,1,0.972,10.63,138,1,1.06,0.94
+Rockhill  V2,34,2,59,26,0,14,1,0.986,11.3,138,1,1.06,0.94
+WestLima  V2,35,1,33,9,0,0,1,0.981,10.87,138,1,1.06,0.94
+Sterling  V2,36,2,31,17,0,0,1,0.98,10.87,138,1,1.06,0.94
+EastLima  V2,37,1,0,0,0,-25,1,0.992,11.77,138,1,1.06,0.94
+EastLima  V1,38,1,0,0,0,0,1,0.962,16.91,345,1,1.06,0.94
+NwLibrty  V2,39,1,27,11,0,0,1,0.97,8.41,138,1,1.06,0.94
+West End  V2,40,2,66,23,0,0,1,0.97,7.35,138,1,1.06,0.94
+S.Tiffin  V2,41,1,37,10,0,0,1,0.967,6.92,138,1,1.06,0.94
+Howard    V2,42,2,96,23,0,0,1,0.985,8.53,138,1,1.06,0.94
+S.Kenton  V2,43,1,18,7,0,0,1,0.978,11.28,138,1,1.06,0.94
+WMVernon  V2,44,1,16,8,0,10,1,0.985,13.82,138,1,1.06,0.94
+N.Newark  V2,45,1,53,22,0,10,1,0.987,15.67,138,1,1.06,0.94
+W.Lancst  V2,46,2,28,10,0,10,1,1.005,18.49,138,1,1.06,0.94
+Crooksvl  V2,47,1,34,0,0,0,1,1.017,20.73,138,1,1.06,0.94
+Zanesvll  V2,48,1,20,11,0,15,1,1.021,19.93,138,1,1.06,0.94
+Philo     V2,49,2,87,30,0,0,1,1.025,20.94,138,1,1.06,0.94
+WCambrdg  V2,50,1,17,4,0,0,1,1.001,18.9,138,1,1.06,0.94
+Newcmrst  V2,51,1,17,8,0,0,1,0.967,16.28,138,1,1.06,0.94
+SCoshoct  V2,52,1,18,5,0,0,1,0.957,15.32,138,1,1.06,0.94
+Wooster   V2,53,1,23,11,0,0,1,0.946,14.35,138,1,1.06,0.94
+Torrey    V2,54,2,113,32,0,0,1,0.955,15.26,138,1,1.06,0.94
+Wagenhls  V2,55,2,63,22,0,0,1,0.952,14.97,138,1,1.06,0.94
+Sunnysde  V2,56,2,84,18,0,0,1,0.954,15.16,138,1,1.06,0.94
+WNwPhil1  V2,57,1,12,3,0,0,1,0.971,16.36,138,1,1.06,0.94
+WNwPhil2  V2,58,1,12,3,0,0,1,0.959,15.51,138,1,1.06,0.94
+Tidd      V2,59,2,277,113,0,0,1,0.985,19.37,138,1,1.06,0.94
+SWKammer  V2,60,1,78,3,0,0,1,0.993,23.15,138,1,1.06,0.94
+W.Kammer  V2,61,2,0,0,0,0,1,0.995,24.04,138,1,1.06,0.94
+Natrium   V2,62,2,77,14,0,0,1,0.998,23.43,138,1,1.06,0.94
+Tidd      V1,63,1,0,0,0,0,1,0.969,22.75,345,1,1.06,0.94
+Kammer    V1,64,1,0,0,0,0,1,0.984,24.52,345,1,1.06,0.94
+Muskngum  V1,65,2,0,0,0,0,1,1.005,27.65,345,1,1.06,0.94
+Muskngum  V2,66,2,39,18,0,0,1,1.05,27.48,138,1,1.06,0.94
+Summerfl  V2,67,1,28,7,0,0,1,1.02,24.84,138,1,1.06,0.94
+Sporn     V1,68,1,0,0,0,0,1,1.003,27.55,345,1,1.06,0.94
+Sporn     V2,69,3,0,0,0,0,1,1.035,30.0,138,1,1.06,0.94
+Portsmth  V2,70,2,66,20,0,0,1,0.984,22.58,138,1,1.06,0.94
+NPortsmt  V2,71,1,0,0,0,0,1,0.987,22.15,138,1,1.06,0.94
+Hillsbro  V2,72,2,12,0,0,0,1,0.98,20.98,138,1,1.06,0.94
+Sargents  V2,73,2,6,0,0,0,1,0.991,21.94,138,1,1.06,0.94
+Bellefnt  V2,74,2,68,27,0,12,1,0.958,21.64,138,1,1.06,0.94
+SthPoint  V2,75,1,47,11,0,0,1,0.967,22.91,138,1,1.06,0.94
+Darrah    V2,76,2,68,36,0,0,1,0.943,21.77,138,1,1.06,0.94
+Turner    V2,77,2,61,28,0,0,1,1.006,26.72,138,1,1.06,0.94
+Chemical  V2,78,1,71,26,0,0,1,1.003,26.42,138,1,1.06,0.94
+CapitlHl  V2,79,1,39,32,0,20,1,1.009,26.72,138,1,1.06,0.94
+CabinCrk  V2,80,2,130,26,0,0,1,1.04,28.96,138,1,1.06,0.94
+Kanawha   V1,81,1,0,0,0,0,1,0.997,28.1,345,1,1.06,0.94
+Logan     V2,82,1,54,27,0,20,1,0.989,27.24,138,1,1.06,0.94
+Sprigg    V2,83,1,20,10,0,10,1,0.985,28.42,138,1,1.06,0.94
+BetsyLne  V2,84,1,11,7,0,0,1,0.98,30.95,138,1,1.06,0.94
+BeaverCk  V2,85,2,24,15,0,0,1,0.985,32.51,138,1,1.06,0.94
+Hazard    V2,86,1,21,10,0,0,1,0.987,31.14,138,1,1.06,0.94
+Pinevlle  V3,87,2,0,0,0,0,1,1.015,31.4,161,1,1.06,0.94
+Fremont   V2,88,1,48,10,0,0,1,0.987,35.64,138,1,1.06,0.94
+ClinchRv  V2,89,2,0,0,0,0,1,1.005,39.69,138,1,1.06,0.94
+Holston   V2,90,2,163,42,0,0,1,0.985,33.29,138,1,1.06,0.94
+HolstonT  V2,91,2,10,0,0,0,1,0.98,33.31,138,1,1.06,0.94
+Saltvlle  V2,92,2,65,10,0,0,1,0.993,33.8,138,1,1.06,0.94
+Tazewell  V2,93,1,12,7,0,0,1,0.987,30.79,138,1,1.06,0.94
+Switchbk  V2,94,1,30,16,0,0,1,0.991,28.64,138,1,1.06,0.94
+Caldwell  V2,95,1,42,31,0,0,1,0.981,27.67,138,1,1.06,0.94
+Baileysv  V2,96,1,38,15,0,0,1,0.993,27.51,138,1,1.06,0.94
+Sundial   V2,97,1,15,9,0,0,1,1.011,27.88,138,1,1.06,0.94
+Bradley   V2,98,1,34,8,0,0,1,1.024,27.4,138,1,1.06,0.94
+Hinton    V2,99,2,42,0,0,0,1,1.01,27.04,138,1,1.06,0.94
+Glen Lyn  V2,100,2,37,18,0,0,1,1.017,28.03,138,1,1.06,0.94
+Wythe     V2,101,1,22,15,0,0,1,0.993,29.61,138,1,1.06,0.94
+Smythe    V2,102,1,5,3,0,0,1,0.991,32.3,138,1,1.06,0.94
+Claytor   V2,103,2,23,16,0,0,1,1.001,24.44,138,1,1.06,0.94
+Hancock   V2,104,2,38,25,0,0,1,0.971,21.69,138,1,1.06,0.94
+Roanoke   V2,105,2,31,26,0,20,1,0.965,20.57,138,1,1.06,0.94
+Cloverdl  V2,106,1,43,16,0,0,1,0.962,20.32,138,1,1.06,0.94
+Reusens   V2,107,2,50,12,0,6,1,0.952,17.53,138,1,1.06,0.94
+Blaine    V2,108,1,2,1,0,0,1,0.967,19.38,138,1,1.06,0.94
+Franklin  V2,109,1,8,3,0,0,1,0.967,18.93,138,1,1.06,0.94
+Fieldale  V2,110,2,39,30,0,6,1,0.973,18.09,138,1,1.06,0.94
+DanRiver  V2,111,2,0,0,0,0,1,0.98,19.74,138,1,1.06,0.94
+Danville  V2,112,2,68,13,0,0,1,0.975,14.99,138,1,1.06,0.94
+Deer Crk  V2,113,2,6,0,0,0,1,0.993,13.74,138,1,1.06,0.94
+WMedford  V2,114,1,8,3,0,0,1,0.96,14.46,138,1,1.06,0.94
+Medford   V2,115,1,22,7,0,0,1,0.96,14.46,138,1,1.06,0.94
+KygerCrk  V2,116,2,184,0,0,0,1,1.005,27.12,138,1,1.06,0.94
+Corey     V2,117,1,20,8,0,0,1,0.974,10.67,138,1,1.06,0.94
+WHuntngd  V2,118,1,33,15,0,0,1,0.949,21.92,138,1,1.06,0.94
diff --git a/tests/results/case118/bus_name.csv b/tests/results/case118/bus_name.csv
new file mode 100644
index 0000000..2a66912
--- /dev/null
+++ b/tests/results/case118/bus_name.csv
@@ -0,0 +1,119 @@
+,bus_name
+0,Riversde  V2
+1,Pokagon   V2
+2,HickryCk  V2
+3,NwCarlsl  V2
+4,Olive     V2
+5,Kankakee  V2
+6,JacksnRd  V2
+7,Olive     V1
+8,Bequine   V1
+9,Breed     V1
+10,SouthBnd  V2
+11,TwinBrch  V2
+12,Concord   V2
+13,GoshenJt  V2
+14,FtWayne   V2
+15,N. E.     V2
+16,Sorenson  V2
+17,McKinley  V2
+18,Lincoln   V2
+19,Adams     V2
+20,Jay       V2
+21,Randolph  V2
+22,CollCrnr  V2
+23,Trenton   V2
+24,TannrsCk  V2
+25,TannrsCk  V1
+26,Madison   V2
+27,Mullin    V2
+28,Grant     V2
+29,Sorenson  V1
+30,DeerCrk   V2
+31,Delaware  V2
+32,Haviland  V2
+33,Rockhill  V2
+34,WestLima  V2
+35,Sterling  V2
+36,EastLima  V2
+37,EastLima  V1
+38,NwLibrty  V2
+39,West End  V2
+40,S.Tiffin  V2
+41,Howard    V2
+42,S.Kenton  V2
+43,WMVernon  V2
+44,N.Newark  V2
+45,W.Lancst  V2
+46,Crooksvl  V2
+47,Zanesvll  V2
+48,Philo     V2
+49,WCambrdg  V2
+50,Newcmrst  V2
+51,SCoshoct  V2
+52,Wooster   V2
+53,Torrey    V2
+54,Wagenhls  V2
+55,Sunnysde  V2
+56,WNwPhil1  V2
+57,WNwPhil2  V2
+58,Tidd      V2
+59,SWKammer  V2
+60,W.Kammer  V2
+61,Natrium   V2
+62,Tidd      V1
+63,Kammer    V1
+64,Muskngum  V1
+65,Muskngum  V2
+66,Summerfl  V2
+67,Sporn     V1
+68,Sporn     V2
+69,Portsmth  V2
+70,NPortsmt  V2
+71,Hillsbro  V2
+72,Sargents  V2
+73,Bellefnt  V2
+74,SthPoint  V2
+75,Darrah    V2
+76,Turner    V2
+77,Chemical  V2
+78,CapitlHl  V2
+79,CabinCrk  V2
+80,Kanawha   V1
+81,Logan     V2
+82,Sprigg    V2
+83,BetsyLne  V2
+84,BeaverCk  V2
+85,Hazard    V2
+86,Pinevlle  V3
+87,Fremont   V2
+88,ClinchRv  V2
+89,Holston   V2
+90,HolstonT  V2
+91,Saltvlle  V2
+92,Tazewell  V2
+93,Switchbk  V2
+94,Caldwell  V2
+95,Baileysv  V2
+96,Sundial   V2
+97,Bradley   V2
+98,Hinton    V2
+99,Glen Lyn  V2
+100,Wythe     V2
+101,Smythe    V2
+102,Claytor   V2
+103,Hancock   V2
+104,Roanoke   V2
+105,Cloverdl  V2
+106,Reusens   V2
+107,Blaine    V2
+108,Franklin  V2
+109,Fieldale  V2
+110,DanRiver  V2
+111,Danville  V2
+112,Deer Crk  V2
+113,WMedford  V2
+114,Medford   V2
+115,KygerCrk  V2
+116,Corey     V2
+117,WHuntngd  V2
diff --git a/tests/results/case118/gen.csv b/tests/results/case118/gen.csv
new file mode 100644
index 0000000..a0fd3fa
--- /dev/null
+++ b/tests/results/case118/gen.csv
@@ -0,0 +1,55 @@
+,GEN_BUS,PG,QG,QMAX,QMIN,VG,MBASE,GEN_STATUS,PMAX,PMIN,PC1,PC2,QC1MIN,QC1MAX,QC2MIN,QC2MAX,RAMP_AGC,RAMP_10,RAMP_30,RAMP_Q,APF
+1,1,0.0,0,15,-5,0.955,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+2,4,0.0,0,300,-300,0.998,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+3,6,0.0,0,50,-13,0.99,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+4,8,0.0,0,300,-300,1.015,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+5,10,450.0,0,200,-147,1.05,100,1,550.0,0,0,0,0,0,0,0,0,0,0,0,0
+6,12,85.0,0,120,-35,0.99,100,1,185.0,0,0,0,0,0,0,0,0,0,0,0,0
+7,15,0.0,0,30,-10,0.97,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+8,18,0.0,0,50,-16,0.973,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
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+31,70,0.0,0,32,-10,0.984,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+32,72,0.0,0,100,-100,0.98,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+33,73,0.0,0,100,-100,0.991,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
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+37,80,477.0,0,280,-165,1.04,100,1,577.0,0,0,0,0,0,0,0,0,0,0,0,0
+38,85,0.0,0,23,-8,0.985,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+39,87,4.0,0,1000,-100,1.015,100,1,104.0,0,0,0,0,0,0,0,0,0,0,0,0
+40,89,607.0,0,300,-210,1.005,100,1,707.0,0,0,0,0,0,0,0,0,0,0,0,0
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+52,112,0.0,0,1000,-100,0.975,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+53,113,0.0,0,200,-100,0.993,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
+54,116,0.0,0,1000,-1000,1.005,100,1,100.0,0,0,0,0,0,0,0,0,0,0,0,0
diff --git a/tests/results/case118/gencost.csv b/tests/results/case118/gencost.csv
new file mode 100644
index 0000000..26fbdbe
--- /dev/null
+++ b/tests/results/case118/gencost.csv
@@ -0,0 +1,55 @@
+,MODEL,STARTUP,SHUTDOWN,NCOST,COST_2,COST_1,COST_0
+1,2,0,0,3,0.01,40,0
+2,2,0,0,3,0.01,40,0
+3,2,0,0,3,0.01,40,0
+4,2,0,0,3,0.01,40,0
+5,2,0,0,3,0.0222222222,20,0
+6,2,0,0,3,0.117647059,20,0
+7,2,0,0,3,0.01,40,0
+8,2,0,0,3,0.01,40,0
+9,2,0,0,3,0.01,40,0
+10,2,0,0,3,0.01,40,0
+11,2,0,0,3,0.0454545455,20,0
+12,2,0,0,3,0.0318471338,20,0
+13,2,0,0,3,0.01,40,0
+14,2,0,0,3,1.42857143,20,0
+15,2,0,0,3,0.01,40,0
+16,2,0,0,3,0.01,40,0
+17,2,0,0,3,0.01,40,0
+18,2,0,0,3,0.01,40,0
+19,2,0,0,3,0.01,40,0
+20,2,0,0,3,0.526315789,20,0
+21,2,0,0,3,0.0490196078,20,0
+22,2,0,0,3,0.208333333,20,0
+23,2,0,0,3,0.01,40,0
+24,2,0,0,3,0.01,40,0
+25,2,0,0,3,0.064516129,20,0
+26,2,0,0,3,0.0625,20,0
+27,2,0,0,3,0.01,40,0
+28,2,0,0,3,0.0255754476,20,0
+29,2,0,0,3,0.0255102041,20,0
+30,2,0,0,3,0.0193648335,20,0
+31,2,0,0,3,0.01,40,0
+32,2,0,0,3,0.01,40,0
+33,2,0,0,3,0.01,40,0
+34,2,0,0,3,0.01,40,0
+35,2,0,0,3,0.01,40,0
+36,2,0,0,3,0.01,40,0
+37,2,0,0,3,0.0209643606,20,0
+38,2,0,0,3,0.01,40,0
+39,2,0,0,3,2.5,20,0
+40,2,0,0,3,0.0164744646,20,0
+41,2,0,0,3,0.01,40,0
+42,2,0,0,3,0.01,40,0
+43,2,0,0,3,0.01,40,0
+44,2,0,0,3,0.01,40,0
+45,2,0,0,3,0.0396825397,20,0
+46,2,0,0,3,0.25,20,0
+47,2,0,0,3,0.01,40,0
+48,2,0,0,3,0.01,40,0
+49,2,0,0,3,0.01,40,0
+50,2,0,0,3,0.01,40,0
+51,2,0,0,3,0.277777778,20,0
+52,2,0,0,3,0.01,40,0
+53,2,0,0,3,0.01,40,0
+54,2,0,0,3,0.01,40,0
diff --git a/tests/results/info.csv b/tests/results/case118/info.csv
similarity index 100%
rename from tests/results/info.csv
rename to tests/results/case118/info.csv
diff --git a/tests/results/case118_prefix_suffix/mpc.branch_test.csv b/tests/results/case118_prefix_suffix/mpc.branch_test.csv
new file mode 100644
index 0000000..fa5cbe1
--- /dev/null
+++ b/tests/results/case118_prefix_suffix/mpc.branch_test.csv
@@ -0,0 +1,187 @@
+,F_BUS,T_BUS,BR_R,BR_X,BR_B,RATE_A,RATE_B,RATE_C,TAP,SHIFT,BR_STATUS,ANGMIN,ANGMAX
+1,1,2,0.0303,0.0999,0.0254,0,0,0,0.0,0,1,-360,360
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diff --git a/tests/results/case118_prefix_suffix/mpc.bus_name_test.csv b/tests/results/case118_prefix_suffix/mpc.bus_name_test.csv
new file mode 100644
index 0000000..2a66912
--- /dev/null
+++ b/tests/results/case118_prefix_suffix/mpc.bus_name_test.csv
@@ -0,0 +1,119 @@
+,bus_name
+0,Riversde  V2
+1,Pokagon   V2
+2,HickryCk  V2
+3,NwCarlsl  V2
+4,Olive     V2
+5,Kankakee  V2
+6,JacksnRd  V2
+7,Olive     V1
+8,Bequine   V1
+9,Breed     V1
+10,SouthBnd  V2
+11,TwinBrch  V2
+12,Concord   V2
+13,GoshenJt  V2
+14,FtWayne   V2
+15,N. E.     V2
+16,Sorenson  V2
+17,McKinley  V2
+18,Lincoln   V2
+19,Adams     V2
+20,Jay       V2
+21,Randolph  V2
+22,CollCrnr  V2
+23,Trenton   V2
+24,TannrsCk  V2
+25,TannrsCk  V1
+26,Madison   V2
+27,Mullin    V2
+28,Grant     V2
+29,Sorenson  V1
+30,DeerCrk   V2
+31,Delaware  V2
+32,Haviland  V2
+33,Rockhill  V2
+34,WestLima  V2
+35,Sterling  V2
+36,EastLima  V2
+37,EastLima  V1
+38,NwLibrty  V2
+39,West End  V2
+40,S.Tiffin  V2
+41,Howard    V2
+42,S.Kenton  V2
+43,WMVernon  V2
+44,N.Newark  V2
+45,W.Lancst  V2
+46,Crooksvl  V2
+47,Zanesvll  V2
+48,Philo     V2
+49,WCambrdg  V2
+50,Newcmrst  V2
+51,SCoshoct  V2
+52,Wooster   V2
+53,Torrey    V2
+54,Wagenhls  V2
+55,Sunnysde  V2
+56,WNwPhil1  V2
+57,WNwPhil2  V2
+58,Tidd      V2
+59,SWKammer  V2
+60,W.Kammer  V2
+61,Natrium   V2
+62,Tidd      V1
+63,Kammer    V1
+64,Muskngum  V1
+65,Muskngum  V2
+66,Summerfl  V2
+67,Sporn     V1
+68,Sporn     V2
+69,Portsmth  V2
+70,NPortsmt  V2
+71,Hillsbro  V2
+72,Sargents  V2
+73,Bellefnt  V2
+74,SthPoint  V2
+75,Darrah    V2
+76,Turner    V2
+77,Chemical  V2
+78,CapitlHl  V2
+79,CabinCrk  V2
+80,Kanawha   V1
+81,Logan     V2
+82,Sprigg    V2
+83,BetsyLne  V2
+84,BeaverCk  V2
+85,Hazard    V2
+86,Pinevlle  V3
+87,Fremont   V2
+88,ClinchRv  V2
+89,Holston   V2
+90,HolstonT  V2
+91,Saltvlle  V2
+92,Tazewell  V2
+93,Switchbk  V2
+94,Caldwell  V2
+95,Baileysv  V2
+96,Sundial   V2
+97,Bradley   V2
+98,Hinton    V2
+99,Glen Lyn  V2
+100,Wythe     V2
+101,Smythe    V2
+102,Claytor   V2
+103,Hancock   V2
+104,Roanoke   V2
+105,Cloverdl  V2
+106,Reusens   V2
+107,Blaine    V2
+108,Franklin  V2
+109,Fieldale  V2
+110,DanRiver  V2
+111,Danville  V2
+112,Deer Crk  V2
+113,WMedford  V2
+114,Medford   V2
+115,KygerCrk  V2
+116,Corey     V2
+117,WHuntngd  V2
diff --git a/tests/results/case118_prefix_suffix/mpc.bus_test.csv b/tests/results/case118_prefix_suffix/mpc.bus_test.csv
new file mode 100644
index 0000000..9a718c6
--- /dev/null
+++ b/tests/results/case118_prefix_suffix/mpc.bus_test.csv
@@ -0,0 +1,119 @@
+bus_name,BUS_I,BUS_TYPE,PD,QD,GS,BS,BUS_AREA,VM,VA,BASE_KV,ZONE,VMAX,VMIN
+Riversde  V2,1,2,51,27,0,0,1,0.955,10.67,138,1,1.06,0.94
+Pokagon   V2,2,1,20,9,0,0,1,0.971,11.22,138,1,1.06,0.94
+HickryCk  V2,3,1,39,10,0,0,1,0.968,11.56,138,1,1.06,0.94
+NwCarlsl  V2,4,2,39,12,0,0,1,0.998,15.28,138,1,1.06,0.94
+Olive     V2,5,1,0,0,0,-40,1,1.002,15.73,138,1,1.06,0.94
+Kankakee  V2,6,2,52,22,0,0,1,0.99,13.0,138,1,1.06,0.94
+JacksnRd  V2,7,1,19,2,0,0,1,0.989,12.56,138,1,1.06,0.94
+Olive     V1,8,2,28,0,0,0,1,1.015,20.77,345,1,1.06,0.94
+Bequine   V1,9,1,0,0,0,0,1,1.043,28.02,345,1,1.06,0.94
+Breed     V1,10,2,0,0,0,0,1,1.05,35.61,345,1,1.06,0.94
+SouthBnd  V2,11,1,70,23,0,0,1,0.985,12.72,138,1,1.06,0.94
+TwinBrch  V2,12,2,47,10,0,0,1,0.99,12.2,138,1,1.06,0.94
+Concord   V2,13,1,34,16,0,0,1,0.968,11.35,138,1,1.06,0.94
+GoshenJt  V2,14,1,14,1,0,0,1,0.984,11.5,138,1,1.06,0.94
+FtWayne   V2,15,2,90,30,0,0,1,0.97,11.23,138,1,1.06,0.94
+N. E.     V2,16,1,25,10,0,0,1,0.984,11.91,138,1,1.06,0.94
+Sorenson  V2,17,1,11,3,0,0,1,0.995,13.74,138,1,1.06,0.94
+McKinley  V2,18,2,60,34,0,0,1,0.973,11.53,138,1,1.06,0.94
+Lincoln   V2,19,2,45,25,0,0,1,0.963,11.05,138,1,1.06,0.94
+Adams     V2,20,1,18,3,0,0,1,0.958,11.93,138,1,1.06,0.94
+Jay       V2,21,1,14,8,0,0,1,0.959,13.52,138,1,1.06,0.94
+Randolph  V2,22,1,10,5,0,0,1,0.97,16.08,138,1,1.06,0.94
+CollCrnr  V2,23,1,7,3,0,0,1,1.0,21.0,138,1,1.06,0.94
+Trenton   V2,24,2,13,0,0,0,1,0.992,20.89,138,1,1.06,0.94
+TannrsCk  V2,25,2,0,0,0,0,1,1.05,27.93,138,1,1.06,0.94
+TannrsCk  V1,26,2,0,0,0,0,1,1.015,29.71,345,1,1.06,0.94
+Madison   V2,27,2,71,13,0,0,1,0.968,15.35,138,1,1.06,0.94
+Mullin    V2,28,1,17,7,0,0,1,0.962,13.62,138,1,1.06,0.94
+Grant     V2,29,1,24,4,0,0,1,0.963,12.63,138,1,1.06,0.94
+Sorenson  V1,30,1,0,0,0,0,1,0.968,18.79,345,1,1.06,0.94
+DeerCrk   V2,31,2,43,27,0,0,1,0.967,12.75,138,1,1.06,0.94
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diff --git a/tests/results/case118_prefix_suffix/mpc.gen_test.csv b/tests/results/case118_prefix_suffix/mpc.gen_test.csv
new file mode 100644
index 0000000..a0fd3fa
--- /dev/null
+++ b/tests/results/case118_prefix_suffix/mpc.gen_test.csv
@@ -0,0 +1,55 @@
+,GEN_BUS,PG,QG,QMAX,QMIN,VG,MBASE,GEN_STATUS,PMAX,PMIN,PC1,PC2,QC1MIN,QC1MAX,QC2MIN,QC2MAX,RAMP_AGC,RAMP_10,RAMP_30,RAMP_Q,APF
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diff --git a/tests/results/case118_prefix_suffix/mpc.gencost_test.csv b/tests/results/case118_prefix_suffix/mpc.gencost_test.csv
new file mode 100644
index 0000000..26fbdbe
--- /dev/null
+++ b/tests/results/case118_prefix_suffix/mpc.gencost_test.csv
@@ -0,0 +1,55 @@
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diff --git a/tests/results/mpc.info_test.csv b/tests/results/case118_prefix_suffix/mpc.info_test.csv
similarity index 100%
rename from tests/results/mpc.info_test.csv
rename to tests/results/case118_prefix_suffix/mpc.info_test.csv
diff --git a/tests/results/branch.csv b/tests/results/case9/branch.csv
similarity index 100%
rename from tests/results/branch.csv
rename to tests/results/case9/branch.csv
diff --git a/tests/results/bus.csv b/tests/results/case9/bus.csv
similarity index 100%
rename from tests/results/bus.csv
rename to tests/results/case9/bus.csv
diff --git a/tests/results/gen.csv b/tests/results/case9/gen.csv
similarity index 100%
rename from tests/results/gen.csv
rename to tests/results/case9/gen.csv
diff --git a/tests/results/gencost.csv b/tests/results/case9/gencost.csv
similarity index 100%
rename from tests/results/gencost.csv
rename to tests/results/case9/gencost.csv
diff --git a/tests/results/case9/info.csv b/tests/results/case9/info.csv
new file mode 100644
index 0000000..ab71732
--- /dev/null
+++ b/tests/results/case9/info.csv
@@ -0,0 +1,3 @@
+,INFO
+version,2
+baseMVA,100
diff --git a/tests/results/mpc.branch_test.csv b/tests/results/case9_prefix_suffix/mpc.branch_test.csv
similarity index 100%
rename from tests/results/mpc.branch_test.csv
rename to tests/results/case9_prefix_suffix/mpc.branch_test.csv
diff --git a/tests/results/mpc.bus_test.csv b/tests/results/case9_prefix_suffix/mpc.bus_test.csv
similarity index 100%
rename from tests/results/mpc.bus_test.csv
rename to tests/results/case9_prefix_suffix/mpc.bus_test.csv
diff --git a/tests/results/mpc.gen_test.csv b/tests/results/case9_prefix_suffix/mpc.gen_test.csv
similarity index 100%
rename from tests/results/mpc.gen_test.csv
rename to tests/results/case9_prefix_suffix/mpc.gen_test.csv
diff --git a/tests/results/mpc.gencost_test.csv b/tests/results/case9_prefix_suffix/mpc.gencost_test.csv
similarity index 100%
rename from tests/results/mpc.gencost_test.csv
rename to tests/results/case9_prefix_suffix/mpc.gencost_test.csv
diff --git a/tests/results/case9_prefix_suffix/mpc.info_test.csv b/tests/results/case9_prefix_suffix/mpc.info_test.csv
new file mode 100644
index 0000000..ab71732
--- /dev/null
+++ b/tests/results/case9_prefix_suffix/mpc.info_test.csv
@@ -0,0 +1,3 @@
+,INFO
+version,2
+baseMVA,100
diff --git a/tests/test_core.py b/tests/test_core.py
index 78c6c98..b231122 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -11,14 +11,19 @@
     pytest -n auto -rA --lf -c pyproject.toml --cov-report term-missing --cov=matpowercaseframes tests/
 """
 
-CASE_NAME = "case9.m"
+CASE_NAME_CASE9 = "case9.m"
 CURDIR = os.path.realpath(os.path.dirname(__file__))
 CASE_DIR = os.path.join(os.path.dirname(CURDIR), "data")
-CASE_PATH = os.path.join(CASE_DIR, CASE_NAME)
+CASE_PATH_CASE9 = os.path.join(CASE_DIR, CASE_NAME_CASE9)
+
+CASE_NAME_CASE118 = "case118.m"
+CURDIR = os.path.realpath(os.path.dirname(__file__))
+CASE_DIR = os.path.join(os.path.dirname(CURDIR), "data")
+CASE_PATH_CASE118 = os.path.join(CASE_DIR, CASE_NAME_CASE118)
 
 
 def test_input_str_path():
-    CaseFrames(CASE_PATH)
+    CaseFrames(CASE_PATH_CASE9)
 
 
 def test_input_oct2py_io_Struct():
@@ -27,7 +32,7 @@ def test_input_oct2py_io_Struct():
     m = start_instance()
 
     # before run
-    mpc = m.loadcase(CASE_NAME, verbose=False)
+    mpc = m.loadcase(CASE_NAME_CASE9, verbose=False)
 
     # after run
     mpc = m.runpf(mpc, verbose=False)
@@ -42,9 +47,9 @@ def test_input_oct2py_io_Struct_and_parse_are_identical():
     m = start_instance()
 
     # before run
-    mpc = m.loadcase(CASE_NAME, verbose=False)
+    mpc = m.loadcase(CASE_NAME_CASE9, verbose=False)
     cf_mpc = CaseFrames(mpc)  # _read_oct2py_struct
-    cf_parse = CaseFrames(CASE_NAME)  # _read_matpower
+    cf_parse = CaseFrames(CASE_NAME_CASE9)  # _read_matpower
 
     # convert to data type recognizable by numpy from pd.convert_dtypes()
     cf_mpc.infer_numpy()
@@ -72,7 +77,7 @@ def test_input_type_error():
 
 
 def test_read_value():
-    cf = CaseFrames(CASE_PATH)
+    cf = CaseFrames(CASE_PATH_CASE9)
 
     assert cf.version == "2"
     assert cf.baseMVA == 100
@@ -108,12 +113,12 @@ def test_read_value():
 
 
 def test_read_case_name():
-    cf = CaseFrames(CASE_PATH)
+    cf = CaseFrames(CASE_PATH_CASE9)
     assert cf.name == "case9"
 
 
 def test_get_attributes():
-    cf = CaseFrames(CASE_PATH)
+    cf = CaseFrames(CASE_PATH_CASE9)
     assert cf.attributes == ["version", "baseMVA", "bus", "gen", "branch", "gencost"]
 
     with pytest.raises(AttributeError):
@@ -130,26 +135,30 @@ def test_get_attributes():
 
 
 def test_to_xlsx():
-    cf = CaseFrames(CASE_PATH)
-    cf.to_excel("tests/results/test_to_xlsx.xlsx")
+    cf = CaseFrames(CASE_PATH_CASE9)
+    cf.to_excel("tests/results/case9/test_to_xlsx.xlsx")
     cf.to_excel(
-        "tests/results/test_to_xlsx_prefix_suffix.xlsx",
+        "tests/results/case9_prefix_suffix/test_to_xlsx_prefix_suffix.xlsx",
         prefix="mpc.",
         suffix="_test",
     )
 
 
 def test_to_csv():
-    cf = CaseFrames(CASE_PATH)
-    cf.to_csv("tests/results")
-    cf.to_csv("tests/results", prefix="mpc.", suffix="_test")
+    cf = CaseFrames(CASE_PATH_CASE9)
+    cf.to_csv("tests/results/case9")
+    cf.to_csv("tests/results/case9_prefix_suffix", prefix="mpc.", suffix="_test")
+
+    cf = CaseFrames(CASE_PATH_CASE118)
+    cf.to_csv("tests/results/case118")
+    cf.to_csv("tests/results/case118_prefix_suffix", prefix="mpc.", suffix="_test")
 
 
 def test_to_dict():
-    cf = CaseFrames(CASE_PATH)
+    cf = CaseFrames(CASE_PATH_CASE9)
     cf.to_dict()
 
 
 def test_to_mpc():
-    cf = CaseFrames(CASE_PATH)
+    cf = CaseFrames(CASE_PATH_CASE9)
     cf.to_mpc()
diff --git a/tests/test_read_matpower_cases.py b/tests/test_read_matpower_cases.py
index 764b491..ddf158c 100644
--- a/tests/test_read_matpower_cases.py
+++ b/tests/test_read_matpower_cases.py
@@ -40,7 +40,7 @@ def test_case118():
 
     CASE_NAME = "case118.m"
     cf = CaseFrames(CASE_NAME)
-    cf_lc = CaseFrames(CASE_NAME)
+    cf_lc = CaseFrames(CASE_NAME, load_case_engine=m)
     mpc = m.loadcase(CASE_NAME)
     cf_mpc = CaseFrames(mpc)
 
@@ -48,6 +48,9 @@ def test_case118():
     cf_lc.infer_numpy()
     cf_mpc.infer_numpy()
 
+    mpc = m.runpf(cf.to_mpc(), verbose=False)
+    _ = CaseFrames(mpc)
+
     m.exit()
 
     assert_cf_equal(cf, cf_lc)