Detection of generator stator inter-circuit faults

A system comprising:

• three input voltage lines electrically connected to at least one voltmeter that is electrically connected to a multiphase generator stator to measure a voltage across each phase of the stator;
• a plurality of pre-defined blocks including at least
• a ground fault de-sensitizer electrically connected to the input voltage lines and determining based on values received therefrom whether a ground fault has occurred,
• a phase-phase fault de-sensitizer connected to the input voltage lines and determining therefrom whether a phase-phase fault has occurred, and
• a multiplier receiving outputs of at least the ground fault de-sensitizer and the phase-phase fault de-sensitizer of the plurality of pre-defined blocks and producing an output signal indicative of a product thereof, the output signal of the multiplier enabling an inter-circuit fault detection (IC-FD) program upon a determination by the ground fault de-sensitizer that no ground fault has occurred and a determination by the phase-phase fault de-sensitizer that no phase-phase fault has occurred;
• at least one root mean square (RMS) device that receives the input voltages and outputs a signal for each phase representative of a respective RMS phase voltage;
• at least three difference devices that each receive a pair of RMS phase voltage signals and output a signal indicative of a difference between the received pair of RMS phase voltage signals;
• at least three absolute value devices that each receive a respective difference from a respective difference device and output an absolute value of the difference as an error signal;
• a comparison logic that receives the error signals, compares combinations of the error signals, and outputs a logic high value for any phase in which an inter-circuit fault is detected;
• and
• an interrupt device responsive to a logic high value from the comparison logic to interrupt operation of the multiphase generator.