What is the power consumed per phase

Posted on 2014-01-08 14:45:00 in Engineering by BRIAN_IRON HAND

A 220-V, 3-? voltage is applied to a balanced delta – connected 3-? load of phase impedance (15 + j20) ?.

1. 
   Find the phasor current in each line.


2. 
   What is the power consumed per phase?


3. 
   What is the phasor sum of the three line currents? Why does it have this value?

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