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A Generator is in running condition and Rotor earth fault
alarm is coming.How to check on line(i.e in running
condition) whether there is actual earth fault in rotor or
not.
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Answer Posted / kk
Rotor earth relay have 2
stage. One 4 alarm & other 4
trip. One can check the
bridge o/p voltage(mV) &
compare with comissioning
time value.
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