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    sudharshan.g's Avatar
    sudharshan.g Posts: 1, Reputation: 1
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    #1

    Sep 28, 2011, 06:51 PM
    Is it possible to place three 1phase transformers instead of 3phase transformer
    Transformers
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Sep 28, 2011, 06:54 PM
    No, it is not.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #3

    Sep 29, 2011, 04:39 AM
    Stan, did you mis-read the question?

    Using three single phase transformers in place of a 3 phase unit has been done many times.

    A 3 phase transformer is nothing more than 3 - 1 phase transfomers in one cabinet, connected in a Delta or Wye configuration.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #4

    Sep 29, 2011, 01:31 PM
    Wow, I've never seen it done, and I figure it violates keeping all circuit conductors in the same raceway, etc, codes.

    I have done quite a bit of commercial/industrial work over the years, but have yet to see this.
    Good to know.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #5

    Sep 30, 2011, 02:36 AM
    Ever see a cluster of three pole mounted kettles? Those would be three single phase xfers for a 3 phase service.
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