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| Please help me with this Q. > A 440V, 3 phase 50Hz, 6-pole, star connected squirrel cage induction > motor has a stator resistance of 0.05ohm/phase and a magnetizing > reactance of 8.5ohm/phase. The rotational losses of the motor > including the core losses are 2,500 W. The speed of the motor at full > load is 975rpm. The blocked-rotor test data of the motor are as > follows: > > V= 90V I = 90A P=2,915 W > > (1) Draw the equivalent circuit of the motor and show the parameter > values on the circuit > (2) Determine the parameters of the Thevenin equivalent circuit of the > motor > (3) Determine the developed torque and the output power of the motoe > when it runs at full load speed. > (4) Determine the speed at which the maximum torque occurs. > | |
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