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3 phase circuit

  1. Mar 19, 2009 #1
    how do i measure the current flow threw the neutral wire if phase R is open circuited? the impedance per load is 3+7j

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  2. jcsd
  3. Mar 19, 2009 #2
    Measure current using a clamp on ammeter or a current transformer +ammeter.

    If you wish to calculate the current, calculate the current in each phase and add them. The currents have to be calculated and added using vectors. Since this is a three phase circuit the currents in the three phases will be 120 degrees apart.
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