The changes in volume of transformer cooling oil due to variation of atmospheric temperature during day and night is taken care of by which part of transformer?

Related Mcqs:

A transformer core is laminated to__________?

A. reduce hysteresis loss B. reduce eddy current losses C. reduce copper losses D. reduce all above losses...

The power transformer is a constant______________?

A. voltage device B. current device C. power device D. main flux device...

Which of the following is the main advantage of an auto-transformer over a two winding transformer?

A. Hysteresis losses are reduced B. Saving in winding material C. Copper losses are negligible D. Eddy losses are totally eliminated...

Short circuit test on transformers is conducted to determine____________?

A. hysteresis losses B. copper losses C. core losses D. eddy current losses...

Losses which occur in rotating electric machines and do not occur in transformers are___________?

A. friction and windage losses B. magnetic losses C. hysteresis and eddy current losses D. copper losses...