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Which outcome occurs when sustained single-phasing degrades an induction motor circuit?

A)Increased component temperatures and insulation breakdown
B)Harmonic distortion propagates into the network
C)Transient voltage spikes across all feeders
D)Reduced torque ripples, smoother motor operation

💡 Explanation

Single-phasing leads to substantial imbalances, therefore causing increased ohmic heating within the motor windings due to the absence of canceling fields. This, rather than smoother operation or harmonic propagation, degrades insulation because thermal runways begin inside the machine.

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