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A three phase induction motor is connected to the infinite bus operating at the normal conditions. There occurs an unbalancing in the supply, leading to _________

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A three phase induction motor is connected to the infinite bus operating at the normal conditions. There occurs an unbalancing in the supply, leading to _________

(a) unequal heating losses

(b) stopping of motor

(c) increase in lower

(d) none of the mentioned

This question was addressed to me during an online exam.

I'd like to ask this question from Losses and Efficiency topic in section Rating and Loss Dissipation of Electrical Machines

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Correct option is (a) unequal heating losses

The best I can explain: The unbalancing in the supply phase will create an unbalanced distribution of the current in the phases, thereby unequal heating.

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