The line currents of a three-phase four wire system are square waves with amplitude of 100 A. These three currents are phase shifted by 120°

Q. The line currents of a three-phase four wire system are square waves with amplitude of 100 A. These three currents are phase shifted by 120° with respect to each other. The rms value of neutral current is

A. 0 A

B. 100 A

C. 3 A

D. 1 A

Ans: 100 A

Solution:

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