GENERATOR ROTOR TURN-TO-TURN FAULT DETECTION USING FRACTIONAL HARMONICS
Detection and protection against electric power generator rotor (120) turn-to-turn faults (122), rotor multi-point-to-ground faults, and rotor permanent magnet faults is provided herein. A fractional harmonic signal is used to determine the rotor fault condition. The fractional harmonic signal may b...
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Sprache: | eng ; fin ; swe |
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Zusammenfassung: | Detection and protection against electric power generator rotor (120) turn-to-turn faults (122), rotor multi-point-to-ground faults, and rotor permanent magnet faults is provided herein. A fractional harmonic signal is used to determine the rotor fault condition. The fractional harmonic signal may be a fractional harmonic magnitude of the circulating current of one phase. The fractional harmonic may be a fractional harmonic magnitude of a neutral voltage. A tripping subsystem (1232) may issue a trip command based upon detection of a rotor turn-to-turn fault condition.Fig. 4 |
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