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Thread: 208/120v to building, 120/240 in apartments - please explain

  1. #1
    Join Date
    Mar 2003
    new york

    Default 208/120v to building, 120/240 in apartments - please explain

    My apartment house has 120/208v Wye connected (4 wire plus ground) service from the utility. Apartments have 120/240 service. we can easily measure the 120v from phase to neutral - and I can comprehend the math that shows 208v between a phase and the imaginary point directly opposite the phase.
    i can't see how this provides the 240v part of 120/240 to the apartments.
    i am certain this has been addressed 100 times before, and would appreciate somebody helping this dummy for the 101'st time.

  2. #2
    Join Date
    Dec 2003
    Welland Ontario


    Are you sure they have 120/240 and 120/208?
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