Ngr, neutral current calculation |
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Ngr, neutral current calculation |
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 Nov 23 2007, 02:22 PM
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Intermediate Member  Group: Full Member Posts: 31 Joined: 25-September 06 Member No.: 2,018  |
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.............
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