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Q.38The line currents of a three-phase four wire system are square waves with amplitude of 100A. These three currents are phase shifted by 120° with respect to each other. The rms valueof neutral current is(A) 0 A(C) 100 A(D) 300 A

Answer»

As its a square wave and plus in square wave system we know that120° phase shift is thereso100/√3 A



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