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

450 W
350 W
300 W
800 W

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SSC JE Electrical 2018 with solution SET-1
 A hysteresis Motor

Can not be run in reverse speed
Need DC excitation
Is a constant speed motor
Is not a self-starting motor

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SSC JE Electrical 2018 with solution SET-1
 In a Hysteresis Motor, the rotor must have

Susceptibility
None of these
Retentivity
Resistivity

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