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ELECTRICAL MACHINES

Electrical Machines
Total core loss is also called as -------------?

 Eddy current loss
 Copper loss
 Hysteresis loss
 Magnetic loss

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Electrical Machines
Which of the following are variable losses?

 shunt field copper loss
 armature copper loss
 eddy current loss
 hysteresis loss

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Electrical Machines
Maximum efficiency will occur, when copper loss is_______to iron loss?

 greater than
 equal to
 less than
 any of the above

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Electrical Machines
Swinburne test is conducted under which of the following condition?

 full load
 any of the above
 no load
 half load

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Electrical Machines
Hopkinson test is conducted under which of the following condition?

 half load
 any of the above
 full load
 no load

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