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joganand
Active Contributor

Join Date: Oct 2012
Posts: 16

Generator Safety

07/19/2014 2:45 AM

Hello everyone, In parallel connected generators,individual generator is protected from over current, reversepower,wndg temperature and so on by isolating the same generator by its directly connected circuit breaker. If by any means generator wndg is shorted or earthed inside the generator or before isolating circuit breaker.how generator is protected in this condition.please list out other safeties involved in protecting a generator in different industries.
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Pathfinder Tags: generator safeties
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RAMConsult
Guru
Engineering Fields - Power Engineering - New Member

Join Date: May 2007
Location: NYC metropolitan area.
Posts: 3230
Good Answers: 444
#1

Re: generator safety

07/19/2014 9:28 AM

It depends upon how large, expensive, and vital to your operations the generator is. Differential, earth fault, loss of field/excitation, rotor earth fault, high vibration, loss of coolant, are just a few additonal generator-specific protective schemes that come to mind. For more info download the GE Digital Protective Relay Handbook.

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vishram lele
Commentator
India - Member - New Member Engineering Fields - Electrical Engineering - New Member Technical Fields - Technical Writing - New Member

Join Date: Dec 2009
Location: India
Posts: 68
Good Answers: 4
#2
In reply to #1

Re: generator safety

07/24/2014 12:27 AM

Fully with RAM..

If the generator is above 10MW, 33KV it is affordable.

No way affordable for LT..
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ShawnHoppe
Associate

Join Date: Jul 2014
Location: I live in USA, Colorado in the houses of 7 Summits
Posts: 28
#3

Re: Generator Safety

07/25/2014 4:32 AM

Generator circuit breakers were used in multi-unit stations where different systems are directly connected to step up transformer and with high speed breaker, one can also use the circuit breakers for protection and contractors for switching, maintenance intervals can be optimized.
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RAMConsult (1); ShawnHoppe (1); vishram lele (1)

Previous in Forum: Problem Faced in Conzerve EM 6400 Meters   Next in Forum: Why Window AC consumes more power as compare to Split AC?

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