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kumarzell
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Join Date: Jan 2007
Posts: 4

Short Circuit Calculation

01/22/2007 5:48 AM

Hi

If anybody knows the SC calculation of MCB & MCCBs. Please help me.
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Pathfinder Tags: calculation circuit
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: Short circuit calculation

01/22/2007 8:35 AM

http://www.usingenglish.com/amazon/us/0872887456.html

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T Man
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United States - Member - New Member Engineering Fields - Electrical Engineering - New Member

Join Date: May 2006
Location: Pittsburgh PA
Posts: 121
#2

Re: Short Circuit Calculation

01/23/2007 8:43 AM

The trip curve for the particular unit shall give you that information. The Instananeous reponse on the curve is the point you need to look at.

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Anonymous Poster
#3

Re: Short Circuit Calculation

01/25/2007 8:07 PM

Assuming that you already have the available S.C. at the buss,

just use the starting current(s) of the motor(s) supplied and

work back to the breaker.
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pnaban
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Join Date: Jun 2010
Location: srilanka
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#4

Re: Short Circuit Calculation

10/02/2011 7:22 AM

Refer schneider publications

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