11KV Gensets Neutral Connection

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kuppahalli Active Contributor Join Date: Mar 2011 Posts: 22	11KV Gensets Neutral Connection 08/18/2016 8:41 AM
	Hi. I have 8nos 11Kv DG sets are there which are running in parallel,Kindly suggest Whether i need to go for individual NGR for each DG's or one can be sufficient for all the Dg's.Kindly explain. Regards Murali
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#1 Re: 11KV Gensets Neutral Connection 08/18/2016 10:48 AM
	A common ground is ok but you need a circulating current limiter installed.... http://www.mirusinternational.com/downloads/DPNL-WP001-A1-Preventing-Neutral-Circulating-Current-when-Paralleling-Generators.pdf __________________ All living things seek to control their own destiny....this is the purpose of life
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dj95401 Guru Join Date: May 2009 Location: Saint Helens, Oregon Posts: 2216 Good Answers: 70	#2 Re: 11KV Gensets Neutral Connection 08/18/2016 1:32 PM
	Looking back at your previous questions posted I'm surprised you haven't burnt the place down yet or killed yourself. Does your boss know your lack of electrical skills? Or that your electrical knowledge is dependant on CR4® answers to your questions? You are a different candidate for the Darwin's Awards. Hopefully you won't take someone with you. __________________ Confucius once said, “ Ability will never catch up with the demand for it".
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raghun Power-User Join Date: Jan 2010 Location: Hyderabad Posts: 343 Good Answers: 22	#3 Re: 11KV Gensets Neutral Connection 08/19/2016 3:56 AM
	I have seen a project where 5 DG sets (6MW each) have their neutrals bussed and connected to a single NGR. However, each Generator neutral had its own isolator (located before bus formation). __________________ Raghunath
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Crabtree Guru Join Date: Jul 2007 Location: Commissariat de Police, Nouvions, occupied France, 1942. Posts: 2599 Good Answers: 77	#4 Re: 11KV Gensets Neutral Connection 08/20/2016 3:06 PM
	Ask yourself if you want a load of current circulation in those neutrals first. __________________ Good moaning!
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Crabtree (1); dj95401 (1); raghun (1); SolarEagle (1)

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