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Homework Help: Three phase star connection with different offset

  1. Jan 12, 2017 #1
    1. The problem statement, all variables and given/known data
    For a balanced star connection i have given angles for V1=90 V2=0 V3=-90 i have to find the voltage required to produce the same phase currents as in standard three phase voltage source e.g V1=120 V2=0 V3 =-120

    2. Relevant equations

    3. The attempt at a solution
    Im not even sure what t he question is asking me or how to do it my understanding is finding voltage value per 1 degree and just add the difference if voltage is example 230. Im mainly mechanical based so electrical ain't my strong point
  2. jcsd
  3. Jan 12, 2017 #2
    all i have found that voltage rquired to provide same values as 230V is 180V not sure how to mathematically show with correct calculations
  4. Jan 12, 2017 #3


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    Homework Helper
    Gold Member

    The problem is not clear.
    What is the impedance of the system?
    For example, if the phase angle of I1 should be 120°, the load power factor angle should be 30° leading.
    Is there any information provided about the load?
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