Calculating neutral current for 3 phase system

Discussion in 'Homework Help' started by andy24691, Mar 2, 2011.

  1. andy24691

    Thread Starter Member

    Nov 25, 2010
    42
    0
    I have an unbalanced star configuration with three different line currents as follows; 5.28A, 2.58A and 4.78A. Is it possible to obtain the neutral current, recorded as 2.4A, from these three values and if so how? If any more readings are required I can provide them.

    Cheers
     
  2. Heavydoody

    Active Member

    Jul 31, 2009
    140
    11
    Add them together as complex currents (including the phase angles). Assuming your sources are at 0, 120, and -120, I get 2.48 at an angle of -50.
     
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