SSC JE Electrical 2018 with solution SET-1
 A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency

350 W
450 W
300 W
800 W

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SSC JE Electrical 2018 with solution SET-1
In a synchronous Motor, the damping winding is generally used to

Reduces the eddy current
Provide starting torque
Reduces the Noise Level
Prevent hunting and provide starting Torque

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SSC JE Electrical 2018 with solution SET-1
 Calculate the phase angle between the voltage and current phasor of a series RL circuit having the resistance of 65 Ohms and Inductive reactance of 37.53 ohms when supplied by a frequency of 60 Hz

45°
60°
30°
15°

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