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Anonymous Poster

Two Sources of Power Feeding Case Breakers

09/28/2009 4:51 AM

what happen if i have 2 sources of power 400v ( from two generators each 1500kva) feeding two molded case breakers each 3200A and each breaker feeding its loads and there is a buscoupler 3200A between them and of corse every breaker has its own neutral from its generator, my question what happen if i made the neutral be unity for all distribution board? an earth leakage current flows in neutral or what?
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PWSlack
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#1

Re: Two Sources of Power Feeding Case Breakers

09/28/2009 12:00 PM

An earth leakage current indicates a fault.

Check local electrical regulations about what is and what is not permissible.

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noshorts
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#2

Re: Two Sources of Power Feeding Case Breakers

09/28/2009 1:14 PM

I may be misunderstanding yo but in no case would you want to separate the neutrals. With 2 seperately derived sources each neutral will carry any unbalanced load from it's source.

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