The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150 Nm. The motor is driven by a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following:
A three-phase, 60 Hz, six-pole, Y-connected, 480 V induction motor has the
following parameters
a. Motor speed
b. Maximum torque at 60 Hz and 50 Hz
c. Motor Current at 50 Hz
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