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adnanzlfqr
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Join Date: Mar 2011
Posts: 2

Generator Star Point Ground

03/18/2011 7:05 AM

why do we ground high voltage genrators star point if it opens in running condition then what will happen on system & machine?
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cuba_pete
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Join Date: Dec 2010
Posts: 1895
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#1

Re: Generator Star Point Ground

03/18/2011 6:04 PM

Then you have no safety ground. Neutral rides on ground at the generator set. Don't touch it!
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electricalexpert65
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Join Date: Oct 2009
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#2

Re: Generator Star Point Ground

03/20/2011 9:42 PM

Be ready to loose the generator - during a single line to ground fault elsewhere in the system.
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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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#3

Re: Generator Star Point Ground

03/27/2011 11:31 AM

In the event of one or two of the phase circuit protective devices operating, then there will be potentially lethal voltage appearing on the neutral downstream of the neutral point link. This may prove fatal to the electrician trying to locate the fault on a live system.

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