See Also
The parameters on this tab are used when running a fault analysis study.
Generator MVA Base
The assumed MVA base for the generator. This value is used when calculating fault analysis values for the internal generator parameters.
Neutral Grounded
Check this check-box if the generator has the neutral grounded.
Generator Step Transformer
The resistance, reactance and tap setting for the generator step-up transformer, if one is being modeled internally with the generator. By default, no internal transformer model is assumed.
Internal Impedance
These fields represent the internal impedance of the generator for all three sequences. By default, all three values are initially the same as the load flow internal impedance of the generator. All three sets of values can be modified, either manually or by loading values from an external file using the Fault Analysis Dialog.
Neutral-to-Ground Impedance
Neutral-to-ground impedance for the generator. These values get implemented with the zero sequence admittance matrix. Note that the neutral-to-ground impedance will not be used, even if specified, if the original model for the generator implicitly models the generator step-up transformer. This is because the implicitly modeled transformer is assumed to have a delta winding on the generator side of the transformer, which isolates the generator from the rest of the zero sequence network.