boby Posted November 23, 2007 Report Share Posted November 23, 2007 we are having 16 MVA 33/11 kv power transformer . delta/ star connection. the neutral from secondary is grounded through a NGR of 15.88 ohm , 400 amps. we are having different kilowatt rating motors. my doubt is for a 75 kw rating motor what should the earth conductor size (body earth ) and on what bassis the earth conductor size will decide............. Link to comment Share on other sites More sharing options...
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