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benotype
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Join Date: Nov 2009
Posts: 89

Homopolar Protection

02/24/2012 8:36 AM

I have a switchboard with homopolar protection in the respective drawers for motors. I realized the homopolar is for downstream and upstream protection of the circuit breaker. I want to know how the homopolar protection is able to decrimate between upstream and downstream protection an d generally how the connection is achieved.
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TonyS
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Join Date: Aug 2010
Location: Resting under the Major Oak
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#1

Re: Homopolar Protection

02/24/2012 9:34 AM

Have a look at http://www05.abb.com/global/scot/scot209.nsf/veritydisplay/39590a7c3d67a25cc12575e5003b0987/$file/1sdc007403g0201.pdf

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