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

    Jun 13, 2014, 11:04 AM
    208v 3ph 400amp cuircuit if transofred into 480 volte with a step up transforfer how
    We have a 208 volts 400 amp ccicuit that we want to transform to a 480 volt cicuit with a step up transformer . How much more amps will we gain? Is there a formula for this ?
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Jun 13, 2014, 12:39 PM
    You will not gain amps, you will lose them.

    What does your electrician say?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #3

    Jun 13, 2014, 06:30 PM
    Yep-increase Voltage, decrease Amps.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
    Ultra Member
    		  
    #4

    Jun 13, 2014, 10:26 PM
    I have two questions...
    1. Why are you asking this in a forum dedicated to DIYers?
    2. Why are you attempting something at a scale you do not understand?
    The "transformer" you want to use will have all the specs included either on the unit or in the literature which will accompany it. It appears you are over your head in this one.
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