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we are operationing 3NOs 800 Kva generators by
singronyus.specialey evening time our panel trip. the panel
showing generator earth fault
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Answer Posted / k.prakashchandra
Another probability. If there is any earth fault before the
GT primary bushings ,the gen may trip on SEFR if voltage
based( open delta) relay is used.Then you have to check
cable,termination glands and the stator winding for earth
fault either by meggering or better by applying rated voltage.
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