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Why is rotor is blocked in brake test on 3phase induction motor?
I have a question about 3phase induction motors. Why is the rotor blocked in brake test?
In a brake test, the rotor is blocked in order to measure the torque produced by the motor. When the rotor is blocked, the motor's stator windings create a magnetic field that pushes against the blocking force, creating a torque that can be measured.