Which of the following is the most likely source of harmonics in a transformer ?

Related Mcqs:

No-load on a transformer is carried out to determine______________?

A. copper loss B. magnetising current C. magnetising current and loss D. efficiency of the transformer...

If the percentage impedances of the two transformers working in parallel are different, then______________________?

A. transformers will be overheated B. power factors of both the transformers will be same C. parallel operation will be not possible D. parallel operation will still be possible, but the power factors at which the two transformers operate will be different from the power factor of the common load...

Harmonics in transformer result in___________?

A. increased core losses B. increased I2R losses C. magnetic interference with communication circuits D. all of the above...

Negative voltage regulation is indicative that the load is___________?

A. capacitive only B. inductive only C. inductive or resistive D. none of the above...

In a power or distribution transformer about 10 per cent end turns are heavily insulated__________?

A. to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns B. to absorb the line surge voltage and save the winding of transformer from damage C. to reflect the line surge and save the winding of a transformer from damage D. none of the above...