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← TechnologyWhich outcome occurs when a three-phase induction motor operates with a single open phase winding?
A)Reduced torque and overheating✓
B)Increased speed and lower efficiency
C)Stable torque and balanced currents
D)Reverse rotation and immediate shutdown
💡 Explanation
When one phase is open, uneven magnetic fields are generated therefore causing the motor to produce significantly reduced torque and experience increased current in the remaining phases, leading to rapid overheating. Resulting it being reduced torque and overheating rather than other outcomes that rely on balanced or closed circuits.
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