Which outcome occurs when one phase conductor in a three-phase induction motor drive system is open-circuited under load?

💡 Explanation

When one phase is open-circuited, single-phasing occurs because the motor loses balanced sinusoidal currents creating pulsating torque and diminished overall capacity, leading to stalling. Therefore, severely reduced torque results, rather than increased speed, efficiency, or balanced current, which normally maintains stable operating parameters.

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