if the supply frequency increases what happens to the motor load
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Answer / jords
it depend on what kind of load.
but the real thing is,
as we increase frequency,the RPM of the motor also
increases.
high frequency can cause motor burning.
low frequency can reduce speed of the motor.
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Assume motor having torque of 'X' Nm is of frequency 50Hz and voltage of 400V . if the frequency of the motor increased to 60Hz , in order to achieve same torque the V/F ratio should be same in either case. so motor may take more current in higher frequency to achieve same torque.
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for a slip ring induction motor if the stator is short circuited and rotor is given supply? how does the rotor rotate?
1 Answers TNEB Tamil Nadu Electricity Board,
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