**Parameter**;**Datatype**;**Value Range**;**Explanation** name;string;;name of the extended ward equivalent bus*;integer;;index of connected bus ps_mw*;float;;constant active power demand [MW] qs_mvar*;float;;constant reactive power demand [MVar] pz_mw*;float;;constant impedance active power demand at 1.0 pu [MW] qz_mvar*;float;;constant impedance reactive power demand at 1.0 pu [MVar] r_ohm*;float;:math:`>` 0;internal resistance of the voltage source [ohm] x_ohm*;float;:math:`>` 0;internal reactance of the voltage source [ohm] vm_pu*;float;:math:`>` 0;voltage source set point [p.u] in_service*;boolean;True / False;specifies if the extended ward equivalent is in service.