Generators
Generators
(OP)
My question is.... Post generator fault, 10MVA unit, what tests would you run before putting it back into service? Consider a) internal fault such as stator ground b) external fault such as a slow clearing bus fault.
I have mainly transmission experience and am not sure what all to consider other than insulation integrity checks.
Thank you.
I have mainly transmission experience and am not sure what all to consider other than insulation integrity checks.
Thank you.






RE: Generators
RE: Generators
Chris
"In this house, we obey the laws of thermodynamics." Homer Simpson
RE: Generators
For an external fault, I wouldn't be too worried. The generator output in the long term is limited by the synchronous reactance and the field. Just keep your eye on the no-load current as the field is applied.
If it is solidly-grounded and you had an long external ground fault, I'd be a little more concerned, since the fault current will be higher than for a phase fault. But I'd really hope a 10 MVA unit was impedance-grounded.
"An 'expert' is someone who has made every possible mistake in a very narrow field of study." -- Edward Teller
RE: Generators
You may want to do a few other tests before the full load/full voltage test.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Generators
Less you know, more tests are required.
RE: Generators
RE: Generators
"If that is successful, a PI can be done and possibly a high-pot."
Thanks!
RE: Generators
RE: Generators
RE: Generators