Transcription of INDUCTION MOTOR TESTS
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INDUCTION MOTOR TESTS
INDUCTION MOTOR TESTS (No-Load Test, Blocked Rotor Test)The equivalent circuit parameters for an INDUCTION MOTOR can bedetermined using specific TESTS on the MOTOR , just as was done for TestBalanced voltages are applied to the stator terminalsat the rated frequency with the rotor uncoupled fromany mechanical load. Current, voltage and powerare measured at the MOTOR input. The losses in theno-load test are those due to core losses, windinglosses, windage and Rotor TestThe rotor is blocked to prevent rotation andbalanced voltages are applied to the statorterminals at a frequency of 25 percent of therated frequency at a voltage where the ratedcurrent is achieved.
The equivalent circuit parameters for an induction motor can be determined using specific tests on the motor, just as was done for the ... The resulting speed-dependent equivalent resistance ... The following is a description of the four different classes of squirrel-cage motors.
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