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    kaka99's Avatar
    kaka99 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 25, 2009, 10:48 AM
    transformer current
    what is the current rating of 100 KVA distribution transformer with ratings as
    V = 11KV/0.4KV f = 50Hz
    danar's Avatar
    danar Posts: 69, Reputation: 2
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    #2

    Jan 27, 2009, 12:07 AM

    use your power formula

    p=srt3EI for 3ph
    p in kva
    I in Amps
    E v in the secondary
    anasmemon's Avatar
    anasmemon Posts: 3, Reputation: 1
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    #3

    Mar 10, 2011, 02:00 AM
    I=100/(1.73*11)=5.25A on 11KV side
    I=100/(1.73*0.4)= 144A on 0.4KV side
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