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3 phase circuit 
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#1
Mar1909, 07:15 AM

P: 32

how do i measure the current flow threw the neutral wire if phase R is open circuited? the impedance per load is 3+7j



#2
Mar1909, 12:38 PM

P: 384

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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