Electrical Engineering

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Anonymous Poster	Electrical Engineering 11/19/2008 2:25 AM
	What is meant by Anti pumping Relay
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Switchman Power-User Join Date: Aug 2007 Location: San Francisco Bay Area Posts: 266 Good Answers: 21	#1 Re: Electrical Engineering 11/19/2008 2:43 AM
	A 52Y anti-pump relay is in electrically operated circuit breakers and it stops a close-open-close "pumping" situation if the breaker close signal is continuously held on when the breaker is kicked open. A pumping breaker can cause a pretty good adrenaline shot, especially if it's part of a paralleling system and shoots off puffs of green smoke every time it hits. __________________ Speed doesn't kill. Sudden stops, brick walls, and old ladies in Buicks do.
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Sparkstation Guru Join Date: Nov 2007 Location: Christchurch, (The Garden City), South Island, New Zealand Posts: 4395 Good Answers: 230	#2 In reply to #1 Re: Electrical Engineering 11/19/2008 3:31 AM
	Hello Switchman from me Kind Regards.... __________________ "The number of inventions increases faster than the need for them at the time" - SparkY
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Switchman Power-User Join Date: Aug 2007 Location: San Francisco Bay Area Posts: 266 Good Answers: 21	#3 In reply to #2 Re: Electrical Engineering 11/19/2008 9:08 PM
	Hello Sparkstation, Thank you very much for your note. I really do appreciate it as I have spent much time reading your well thought out and informative responses on this forum. Let me take this opportunity to say that your insight and professional mannerisms in this environment are of significant benefit to others here. Thanks __________________ Speed doesn't kill. Sudden stops, brick walls, and old ladies in Buicks do.
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Anonymous Poster	#4 In reply to #1 Re: Electrical Engineering 12/10/2008 5:26 AM
	A 52Y anti-pump relay is in electrically operated circuit breakers and it stops a close-open-close "pumping" situation if the breaker close signal is continuously held on when the breaker is kicked open apart from above anti pump relaY PREVENTS continous power feeding to closeing coil in the absence of this realy closing coil will wil burn( because of short time rating of coil) kiran
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