Automatically Connect Load to Panel

[opferjohn]

I have an electrical load with 9 connectors and would like to automatically connect each of them to a panel by having the user select the load and panel.  My current approach is to create an electrical system for each connector and set the panel.  I am able to create electrical systems, however when I use the SelectPanel method and pass in the panel, I am given the error "The panel and circuit do not match".

The panel and load are the same voltage and both have the same number of phases.  I am able to manually connect them (Select load, click Power, ect...) without any problems, so why am I getting an error here?  Here is the snippet of code in which I create the electrical system for one connector and attempt to select the panel (load and panel are both FamilyInstance types):

TransactionManager.Instance.EnsureInTransaction(doc)
newElectricalSystem = Autodesk.Revit.DB.Electrical.ElectricalSystem
loadConnectorIterator = load.MEPModel.ConnectorManager.UnusedConnectors.ForwardIterator()
loadConnectorIterator.MoveNext()
loadConnector = loadConnectorIterator.Current
circuit = newElectricalSystem.Create(loadConnector, ElectricalSystemType.PowerCircuit)
TransactionManager.Instance.TransactionTaskDone()
circuit.SelectPanel(panel)

I am using Revit 2019 and coding in Python using Dynamo

[jeremytammik]

I believe the Revit SDK PowerCircuit sample demonstrates some of the functionality you require. Please take a look at that.

[opferjohn · Accepted solution]

Thanks for the reply @jeremytammik .  I placed another panel(same family and type as the first), ran it with the same code, and it worked and works for all other panels I am using this code with.  I'm not sure why it was giving me errors before, but all is well now.