A Generator is in running condition and Rotor earth fault alarm is coming.How

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.

Question Posted / amulya sabat

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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e..

Answer / 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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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e..

Answer / bhuvnesh kumawat

rotor earth fault alarm comes only if our carbon brushes
become earthed. it may be at the time of changing carbon
brushes.

Is This Answer Correct ?

1 Yes

3 No

A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e..

Answer / sujeet kumar

we have to check the status of zero sequence relay..
if its not affected then there is not any earth fault

Is This Answer Correct ?

0 Yes

5 No

A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e..

Answer / alok

rotor both side earth fault wire open and check countinuti
with the help of multimeter at rotor both end.but one side
wire who is grounded must be grounded.

Is This Answer Correct ?

2 Yes

8 No

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