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ESE 2021 Technical Quiz || Fractional Kilowatt Motors, 1-Phase motors
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For a 1.8o, 2-phase bipolar stepper motor, the stepping rate is 100 steps/second. The rotational speed of the motor in rpm is
A 3 stack stepper motor with 12 numbers of rotor teeth has a step angle of ____________.
A 220 V, 50 Hz, 6 – pole single phase induction motor is running at a speed of 940 rpm in clockwise (forward) direction. If the rotor resistance at standstill is 5Ω. Calculate the effective rotor resistance(in Ohm) in the backward branch of the equivalent circuit.
A induction motor has double-cage rotor with equivalent impedance at stand-still of (1+j1) and (0.2+j 4) ohms. Find the relative values of torque produced by each cage at 5% slip. ie Find ratio of T1:T2
The speed of universal motor is generally reduced by
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Jun 4ESE & GATE EE
Mohd. IrshadMember since Apr 2020