Fix ssc bus not updated by create_continuous_bus_index #3078

CHANGELOG.rst

@@ -3,6 +3,7 @@ Change Log
 
 [upcoming release] - 2026-..-..
 -------------------------------
+- [FIXED] ``create_continuous_bus_index`` (and other toolbox functions relying on ``element_bus_tuples``) now also update the ``bus`` column of the ``ssc`` element table; it was previously missing from the list of bus-referencing elements
 - [FIXED] restored ``OpenDSSDirect.py`` to the ``all``/``dev`` extras so the OpenDSS converter is exercised (and its coverage reported) in CI again; it was dropped in #3062 because installing it alongside ``pytest~=9.1`` crashed the pytest process on Windows. Root cause (see `dss-extensions/OpenDSSDirect.py#148 <https://github.com/dss-extensions/OpenDSSDirect.py/issues/148>`_): pytest enables Python's ``faulthandler`` by default, which intercepts a first-chance Windows structured exception that OpenDSSDirect.py's native backend raises -- and normally handles itself -- during import, and misreports it as fatal. Bracketing the import with ``faulthandler.disable()``/``.enable()`` avoids the false crash while leaving ``faulthandler`` protecting the rest of the test run; the converter now runs on Windows instead of merely skipping there.
 - [ADDED] OpenDSS converter: series (bus-to-bus) ``Reactor`` elements are now imported as a fixed-impedance ``line``, the pattern some feeder libraries (e.g. EPRI's Ckt5/Ckt7) use to model the substation's Thevenin-equivalent source impedance instead of a ``Transformer``.
 - [FIXED] impedance element docs: the ``z_tf`` equation used ``rft_pu`` instead of ``rtf_pu``, and the ``gt_pu``/``bt_pu``/``gt0_pu``/``bt0_pu`` shunt parameters were described as being at the ``from_bus`` instead of the ``to_bus``.

pandapower/test/toolbox/test_data_modification.py

@@ -10,7 +10,7 @@
 import pytest
 
 from pandapower.create import create_measurement, create_empty_network, create_bus, create_load, create_sgen, \
-    create_shunt, create_ward
+    create_shunt, create_ward, create_ssc
 from pandapower.networks.cigre_networks import create_cigre_network_mv
 from pandapower.networks.create_examples import example_simple, example_multivoltage
 from pandapower.run import runpp
@@ -138,6 +138,9 @@ def test_continuos_bus_numbering():
     create_ward(net, bus0, 2, 1, 1, 2)
     create_ward(net, bus0, 2, 1, 1, 2)
 
+    bus0 = create_bus(net, 0.4, index=9821)
+    create_ssc(net, bus0, r_ohm=1., x_ohm=1.)
+
     create_continuous_bus_index(net)
 
     buses = net.bus.index

pandapower/toolbox/element_selection.py

@@ -665,7 +665,7 @@ def element_bus_tuples(bus_elements=True, branch_elements=True, res_elements=Fal
         ebts += [("sgen", "bus"), ("load", "bus"), ("ext_grid", "bus"), ("gen", "bus"),
                  ("ward", "bus"), ("xward", "bus"), ("shunt", "bus"),
                  ("storage", "bus"), ("asymmetric_load", "bus"), ("asymmetric_sgen", "bus"),
-                 ("motor", "bus")]
+                 ("motor", "bus"), ("ssc", "bus")]
     if branch_elements:
         ebts += [("line", "from_bus"), ("line", "to_bus"), ("impedance", "from_bus"),
                  ("impedance", "to_bus"), ("switch", "bus"), ("trafo", "hv_bus"),