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    shahnawaz71's Avatar
    shahnawaz71 Posts: 1, Reputation: 1
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    #1

    Aug 25, 2007, 11:23 PM
    Current capacity of transformer
    If I have got a 3 phase 750 KVA tranformer of 6.6KV / 380 V , what is the max output current capacity per phase. How is it calculated.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Aug 26, 2007, 05:48 AM
    Line Current = 750000 VA / (380 V x 1.732) = 1140 amps per phase
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    Aug 26, 2007, 12:19 PM
    1.73 is the square root of 3 BTW.
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