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

    Jan 7, 2009, 07:51 PM
    How Size up transformer?
    Good day guys!
    Just want to know the basics on how to get the size of transformer in terms of KVA rating.
    I have motor loads of 400 amps which operates at 380 V / 3phase. The supply/primary voltage of transformer must be 230 V / 3 phase.What size of transformer should I used? Thanks in advance for the answers! Any relevant article in computing transformer rating would be a good reference too.. :)
    sathe1963's Avatar
    sathe1963 Posts: 97, Reputation: 4
    Junior Member
    		  
    #2

    Apr 20, 2009, 06:45 AM
    Your basic load (running load) is 160 kva. Tfr rating shall be more than or equal to 192 kva.
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