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Phase Displacement Convention

  1. Feb 21, 2008 #1
    1. The problem statement, all variables and given/known data
    In a wye connected circuit with a balanced UPF load, what is the phase displacement between the line voltages and current for an ABC and ACB phase sequence

    2. Relevant equations

    3. The attempt at a solution

    My trouble is I can't find anything pertaining to the "syntax" of phase displacement.

    I can see that for the ABC sequence, the current will lag the voltage by 30 degrees. How would I go about annotating this?

    Is the phase displacement between Vab and Ia, for instance, +30 degrees because the voltage leads, -30 degrees because the current lags... does it even need a sign?

    Thanks for your time..
    Last edited: Feb 21, 2008
  2. jcsd
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