From 4cb5b13221e0117eccd91a20a7c49a3eb94b9718 Mon Sep 17 00:00:00 2001
From: santi <santiago.penate.vera@gmail.com>
Date: Thu, 27 Jun 2024 21:32:06 +0100
Subject: [PATCH] CGMES: Adding the middle buses of the TR3

---
 .idea/workspace.xml                           | 98 +++++++++----------
 src/GridCalEngine/Devices/multi_circuit.py    |  9 +-
 .../IO/cim/cgmes/cgmes_to_gridcal.py          |  3 +-
 src/GridCalEngine/Topology/topology.py        |  1 -
 4 files changed, 52 insertions(+), 59 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 960f32570..24cb4c1d0 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -28,9 +28,10 @@
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-    <list default="true" id="aa3ee678-6e91-470f-91a9-09e9d8a4756d" name="Changes" comment="Fixed save_excel that now exports the legacy system">
+    <list default="true" id="aa3ee678-6e91-470f-91a9-09e9d8a4756d" name="Changes" comment="Added the bus None check to `grid_analysis`">
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-      <change beforePath="$PROJECT_DIR$/src/GridCal/Gui/Analysis/object_plot_analysis.py" beforeDir="false" afterPath="$PROJECT_DIR$/src/GridCal/Gui/Analysis/object_plot_analysis.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/GridCalEngine/Devices/multi_circuit.py" beforeDir="false" afterPath="$PROJECT_DIR$/src/GridCalEngine/Devices/multi_circuit.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/GridCalEngine/Topology/topology.py" beforeDir="false" afterPath="$PROJECT_DIR$/src/GridCalEngine/Topology/topology.py" afterDir="false" />
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@@ -112,7 +113,7 @@
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     "Python tests.pytest in tests.executor": "Run",
-    "Python.ExecuteGridCal.executor": "Run",
+    "Python.ExecuteGridCal.executor": "Debug",
     "Python.update_gui_file.executor": "Run",
     "RunOnceActivity.OpenProjectViewOnStart": "true",
     "RunOnceActivity.ShowReadmeOnStart": "true",
@@ -416,29 +417,6 @@
       <option name="INPUT_FILE" value="" />
       <method v="2" />
     </configuration>
-    <configuration name="nsga3" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
-      <module name="GridCal" />
-      <option name="ENV_FILES" value="" />
-      <option name="INTERPRETER_OPTIONS" value="" />
-      <option name="PARENT_ENVS" value="true" />
-      <envs>
-        <env name="PYTHONUNBUFFERED" value="1" />
-      </envs>
-      <option name="SDK_HOME" value="" />
-      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/src/GridCalEngine/Utils/NumericalMethods" />
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-      <option name="ADD_SOURCE_ROOTS" value="true" />
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@@ -611,9 +589,27 @@
       <option name="_new_targetType" value="&quot;PATH&quot;" />
       <method v="2" />
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+    <configuration name="pytest in tests" type="tests" factoryName="py.test" temporary="true" nameIsGenerated="true">
+      <module name="GridCal" />
+      <option name="ENV_FILES" value="" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/src/tests" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
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       <item itemvalue="Python.ExecuteGridCal" />
+      <item itemvalue="Python tests.pytest in tests" />
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       <item itemvalue="Python tests.pytest for test_power_flow.test_controllable_shunt" />
       <item itemvalue="Python tests.pytest in cgmes_raw_cross_imp_exp_test.py" />
@@ -621,10 +617,10 @@
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+        <item itemvalue="Python tests.pytest in tests" />
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@@ -1267,7 +1263,8 @@
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       <created>1656068672004</created>
@@ -1612,7 +1609,7 @@
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@@ -1658,7 +1655,6 @@
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     <MESSAGE value="Improved the LinearMultiContingencies update function which was likely missing operations" />
     <MESSAGE value="Added the roseta figures&#10;minor refactor" />
     <MESSAGE value="Fixed bug when setting the file label for when loading many CIM files&#10;&#10;Minor refactoring" />
@@ -1683,7 +1679,8 @@
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-    <option name="LAST_COMMIT_MESSAGE" value="Fixed save_excel that now exports the legacy system" />
+    <MESSAGE value="Added the bus None check to `grid_analysis`" />
+    <option name="LAST_COMMIT_MESSAGE" value="Added the bus None check to `grid_analysis`" />
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@@ -2086,11 +2083,6 @@
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@@ -2153,7 +2145,7 @@
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@@ -2190,23 +2182,23 @@
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+    <SUITE FILE_PATH="coverage/GridCal$continuation_power_flow.coverage" NAME="continuation_power_flow Coverage Results" MODIFIED="1648735552255" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal/Engine/Simulations/ContinuationPowerFlow" />
+    <SUITE FILE_PATH="coverage/GridCal$Nosetests_for_tests_test_time_series_test_time_series.coverage" NAME="Nosetests for tests.test_time_series.test_time_series Coverage Results" MODIFIED="1617043238858" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
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+    <SUITE FILE_PATH="coverage/GridCal$ACPTDF_research3.coverage" NAME="ACPTDF_research3 Coverage Results" MODIFIED="1649436788157" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/research/PTDF" />
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@@ -2267,8 +2259,8 @@
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-    <SUITE FILE_PATH="coverage/GridCal$sparse_solve.coverage" NAME="sparse_solve Coverage Results" MODIFIED="1698396568619" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCalEngine/Simulations" />
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+    <SUITE FILE_PATH="coverage/GridCal$sparse_solve.coverage" NAME="sparse_solve Coverage Results" MODIFIED="1698396568619" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCalEngine/Simulations" />
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     <SUITE FILE_PATH="coverage/GridCal$Nosetests_in_test_topology_processor_py.coverage" NAME="Nosetests in test_topology_processor.py Coverage Results" MODIFIED="1714986381436" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
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@@ -2282,8 +2274,8 @@
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     <SUITE FILE_PATH="coverage/GridCal$run_contingencies.coverage" NAME="run_contingencies Coverage Results" MODIFIED="1707303266446" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk/contingencies" />
     <SUITE FILE_PATH="coverage/GridCal$GridCalMain.coverage" NAME="GridCalMain Coverage Results" MODIFIED="1688630053799" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal/Gui/Main" />
-    <SUITE FILE_PATH="coverage/GridCal$numba_sparse_experiments.coverage" NAME="numba_sparse_experiments Coverage Results" MODIFIED="1718398235079" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk" />
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_in_test_opf_time_series_py.coverage" NAME="Nosetests in test_opf_time_series.py Coverage Results" MODIFIED="1708507002949" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
+    <SUITE FILE_PATH="coverage/GridCal$numba_sparse_experiments.coverage" NAME="numba_sparse_experiments Coverage Results" MODIFIED="1718398235079" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk" />
     <SUITE FILE_PATH="coverage/GridCal$linear_analysis_run.coverage" NAME="linear_analysis_run Coverage Results" MODIFIED="1696330787545" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/examples" />
     <SUITE FILE_PATH="coverage/GridCal$AnalysisDialogue.coverage" NAME="AnalysisDialogue Coverage Results" MODIFIED="1709031503072" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal/Gui/Analysis" />
     <SUITE FILE_PATH="coverage/GridCal$dc_opf.coverage" NAME="dc_opf Coverage Results" MODIFIED="1602504240684" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal/Engine/Simulations/OPF" />
@@ -2332,8 +2324,8 @@
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_for_tests_test_voltage_collapse.coverage" NAME="Nosetests for tests.test_voltage_collapse Coverage Results" MODIFIED="1602937737883" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
     <SUITE FILE_PATH="coverage/GridCal$analytic_ptdf_driver.coverage" NAME="analytic_ptdf_driver Coverage Results" MODIFIED="1600179811175" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal/Engine/Simulations/PTDF" />
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_for_tests_test_contingency.coverage" NAME="Nosetests for tests.test_contingency Coverage Results" MODIFIED="1704269547065" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
-    <SUITE FILE_PATH="coverage/GridCal$new_circuit_objects.coverage" NAME="new_circuit_objects Coverage Results" MODIFIED="1712307343507" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk/code_generation" />
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_for_test_simple_mip_test_lp_simple3.coverage" NAME="Nosetests for test_simple_mip.test_lp_simple3 Coverage Results" MODIFIED="1704806778841" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
+    <SUITE FILE_PATH="coverage/GridCal$new_circuit_objects.coverage" NAME="new_circuit_objects Coverage Results" MODIFIED="1712307343507" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk/code_generation" />
     <SUITE FILE_PATH="coverage/GridCal$run.coverage" NAME="run Coverage Results" MODIFIED="1717077522843" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCalServer" />
     <SUITE FILE_PATH="coverage/GridCal$line_arrow_2.coverage" NAME="line_arrow_2 Coverage Results" MODIFIED="1717401466172" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk/qt_related" />
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_for_tests_test_short_circuit.coverage" NAME="Nosetests for tests.test_short_circuit Coverage Results" MODIFIED="1648735680536" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
@@ -2536,13 +2528,13 @@
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     <SUITE FILE_PATH="coverage/GridCal$newton_equivalence_utils.coverage" NAME="newton_equivalence_utils Coverage Results" MODIFIED="1687725154112" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
     <SUITE FILE_PATH="coverage/GridCal$update_gui_all.coverage" NAME="update_gui_all Coverage Results" MODIFIED="1696580506087" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal/Gui" />
-    <SUITE FILE_PATH="coverage/GridCal$ExecuteGridCal.coverage" NAME="ExecuteGridCal Coverage Results" MODIFIED="1719503446072" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal" />
+    <SUITE FILE_PATH="coverage/GridCal$ExecuteGridCal.coverage" NAME="ExecuteGridCal Coverage Results" MODIFIED="1719519740944" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCal" />
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     <SUITE FILE_PATH="coverage/GridCal$graph_save2.coverage" NAME="graph_save2 Coverage Results" MODIFIED="1702996105426" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/GridCalEngine/IO/rdf_test" />
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_in_test_latin_hypercube_py.coverage" NAME="Nosetests in test_latin_hypercube.py Coverage Results" MODIFIED="1708506956216" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
     <SUITE FILE_PATH="coverage/GridCal$controllable_shunt_editor.coverage" NAME="controllable_shunt_editor Coverage Results" MODIFIED="1718358432978" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk/qt_related" />
     <SUITE FILE_PATH="coverage/GridCal$plexel_circuit.coverage" NAME="plexel_circuit Coverage Results" MODIFIED="1706090549808" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/trunk/plexel" />
-    <SUITE FILE_PATH="coverage/GridCal$pytest_in_tests.coverage" NAME="pytest in tests Coverage Results" MODIFIED="1719384883131" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
+    <SUITE FILE_PATH="coverage/GridCal$pytest_in_tests.coverage" NAME="pytest in tests Coverage Results" MODIFIED="1719518159222" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="false" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
     <SUITE FILE_PATH="coverage/GridCal$lightmap.coverage" NAME="lightmap Coverage Results" MODIFIED="1655892740020" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/research/map" />
     <SUITE FILE_PATH="coverage/GridCal$Nosetests_for_admittance_matrix_test_test3.coverage" NAME="Nosetests for admittance_matrix_test.test3 Coverage Results" MODIFIED="1706045531246" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/tests" />
     <SUITE FILE_PATH="coverage/GridCal$V1_refractored.coverage" NAME="V1_refractored Coverage Results" MODIFIED="1617214204840" SOURCE_PROVIDER="com.intellij.coverage.DefaultCoverageFileProvider" RUNNER="coverage.py" COVERAGE_BY_TEST_ENABLED="true" COVERAGE_TRACING_ENABLED="false" WORKING_DIRECTORY="$PROJECT_DIR$/src/research/PGD" />
diff --git a/src/GridCalEngine/Devices/multi_circuit.py b/src/GridCalEngine/Devices/multi_circuit.py
index 57e8afa29..b3e97307e 100644
--- a/src/GridCalEngine/Devices/multi_circuit.py
+++ b/src/GridCalEngine/Devices/multi_circuit.py
@@ -1237,7 +1237,7 @@ def get_injection_devices_grouped_by_bus(self) -> Dict[dev.Bus, Dict[DeviceType,
         return groups
 
     def get_injection_devices_grouped_by_cn(self) -> Dict[dev.ConnectivityNode,
-                                                          Dict[DeviceType, List[INJECTION_DEVICE_TYPES]]]:
+    Dict[DeviceType, List[INJECTION_DEVICE_TYPES]]]:
         """
         Get the injection devices grouped by bus and by device type
         :return: Dict[ConnectivityNode, Dict[DeviceType, List[Injection devs]]
@@ -2293,9 +2293,10 @@ def process_topology_at(self,
             # if elm.cn_from is not None and elm.cn_to is not None:
             #     f = process_info.get_candidate_pos_from_cn(elm.cn_from)
             #     t = process_info.get_candidate_pos_from_cn(elm.cn_to)
-            f, t, is_ok = process_info.get_connection_indices(elm=elm, logger=logger)
-            Cf[i, f] = br_active[i]
-            Ct[i, t] = br_active[i]
+            if br_active[i]:  # avoid adding zeros
+                f, t, is_ok = process_info.get_connection_indices(elm=elm, logger=logger)
+                Cf[i, f] = br_active[i]
+                Ct[i, t] = br_active[i]
 
         # --------------------------------------------------------------------------------------------------------------
         # Compose the adjacency matrix from the connectivity information
diff --git a/src/GridCalEngine/IO/cim/cgmes/cgmes_to_gridcal.py b/src/GridCalEngine/IO/cim/cgmes/cgmes_to_gridcal.py
index 3aa7b6c5b..4873dcf92 100644
--- a/src/GridCalEngine/IO/cim/cgmes/cgmes_to_gridcal.py
+++ b/src/GridCalEngine/IO/cim/cgmes/cgmes_to_gridcal.py
@@ -902,7 +902,8 @@ def get_gcdev_ac_transformers(cgmes_model: CgmesCircuit,
                     gcdev_elm.winding3.cn_from = cn_3
                     gcdev_elm.winding3.cn_to = cn_1
 
-                    gcdev_model.add_transformer3w(gcdev_elm, add_middle_bus=False)
+                    # gcdev_model.add_transformer3w(gcdev_elm, add_middle_bus=False)  # TODO: Why not adding the middle bus?
+                    gcdev_model.add_transformer3w(gcdev_elm, add_middle_bus=True)
 
                 else:
                     logger.add_error(msg='Not exactly three terminals',
diff --git a/src/GridCalEngine/Topology/topology.py b/src/GridCalEngine/Topology/topology.py
index b9bf501ed..ac6a37214 100644
--- a/src/GridCalEngine/Topology/topology.py
+++ b/src/GridCalEngine/Topology/topology.py
@@ -482,7 +482,6 @@ def get_connection_indices(self, elm: BRANCH_TYPES, logger: Logger) -> Tuple[int
                 t = -1
 
             if f == t:
-                # raise ValueError("Loop connected branch!")
                 logger.add_error(msg="Loop connected branch!", device=elm.name)
                 return -1, -1, False