Multiple choice

During which test of the induction motor, the reduced voltage is applied?

  1. No lead test

  2. Blocked rotor test

  3. Insulation test

  4. Resistance test
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The blocked rotor test applies reduced voltage to the motor while keeping the rotor stationary, measuring current and power to determine equivalent circuit parameters. This test is also called the locked-rotor test and helps determine starting torque characteristics.

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