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RRB/SSC JE Electrical 2019 || Three Phase Induction Motors Quiz 4
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Question 1
The rotor power output of a 3-phase induction motor is 15 KW and corresponding slip is 4%. The rotor copper loss will be
Question 2
A 3-phase, 400 volts, 50 Hz, 100 KW, 4 pole squirrel cage induction motor with a rated slip of 2% will have a rotor speed of:
Question 3
A 400kW, 3-phase, 440V, 50Hz induction motor has a speed of 950 r.p.m. on full load. The machine has 6 poles. The slip of the machine will be _______________.
Question 4
If the voltage is reduced to half, the torque developed by an induction motor will be reduced to
Question 5
The resistance representing mechanical output in the equivalent circuit of an induction motor as seen from the stator is:
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