generator load rejection
generator load rejection
(OP)
hello there, how does an earth fault on generator feeders cause load rejection? thanx for your help
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generator load rejection
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generator load rejectiongenerator load rejection(OP)
hello there, how does an earth fault on generator feeders cause load rejection? thanx for your help
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RE: generator load rejection
RE: generator load rejection
Said another way, either the protective settings are wrong, or the generator is to small to justify it's own proper protection.
Or the designer was being cheep, and the customer diden't know any better.
RE: generator load rejection
An earth fault on the generator bus would almost always result in load rejection because protection will trip the generator main breaker and the excitation to de-energise the generator bus. Before anyone contends that operation of a resistance-earthed generator with a stator earth fault is possible, I don't know of a operator of big utility-class machines who would be brave enough to actually do it in anything other than the most desperate circumstances. On a small emergency set of a few MW then the benefit of keeping emergency power available outweighs the risk (and potential cost) of wrecking the set in the process.