Single-Phase Short Circuit Fault Results
The options for fault type on the Short Circuit menu are only for 3-phase buses. For single-phase bus fault types, the program follows the options in Short Circuit Options on the Control tab, as described in Equipment Duty for Single-Phase Devices.
Figure 1: Single Phase Fault Types for 1PH Buses
The following 1-phase fault types are available:
- For 1PH-3W equipment you can choose between line-to-line fault (LN) and line-to-line fault (LL).
- For 1PH-2W line-to-neutral connected equipment, the fault type is line-to-neutral. This applies for equipment fed from 3-phase or 1PH-3W services.
- For 1PH-2W line-to-line connected equipment that is fed by a 3-phase system, you can choose between a double-line-to-ground (DLG) fault and a line-to-line (LL) fault. For line-to-line connected equipment fed from a 1PH-3W system, only line-to-line faults are applied.
You can choose to include or exclude single-phase buses when you fault buses.
