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.
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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