This property sets/gets the number of phases for the active VSource.  Defaults to 3.


% Create DSS object

DSSObject = actxserver('OpenDSSEngine.DSS')

if ~DSSObject.Start(0),

                    disp('Unable to start openDSS');



DSSText = DSSObject.Text;

DSSCircuit = DSSObject.ActiveCircuit;

% Compile a model        

DSSText.Command = 'Compile C:\myPath\myModel.dss';

DSSVSources = DSSCircuit.VSources;

% Activates the first VSource on the list

k = DSSVSources.First;

% get the number of phases of the active VSource

myNPhases = DSSVSources.Phases;