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gova1467
Commentator
India - Member - New Member

Join Date: Nov 2008
Location: India
Posts: 72

Breaker First Pole to Clear Factor

07/06/2009 7:58 AM

Dear all

what is first pole to clear factor.

I have seen this term in 110KV Crompton Greaves Ltd, SF6 Breaker's name plate.The value given is 1.5.

What it actually means?

Please share your views

Regards

gova
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sb
Guru

Join Date: Mar 2007
Posts: 2550
Good Answers: 103
#1

Re: First pole to clear factor

07/06/2009 8:12 AM

A simple google would have saved you time.

http://www.google.co.in/search?hl=en&q=first+pole+to+clear+factor&meta=&aq=0&oq=first+pole

Results 1 - 10 of about 372,000 for first pole to clear factor. (0.13 seconds)

http://en.wikipedia.org/wiki/Transient_Recovery_Voltage

BTW: Arn't you familiar with the breakers?

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