Power transformers are generally designed to have maximum efficiency around__________?

Related Mcqs:

The efficiency of a transformer will be maximum when_____________?

A. copper losses = hysteresis losses B. hysteresis losses = eddy current losses C. eddy current losses = copper losses D. copper losses = iron losses...

The maximum efficiency of a distribution transformer is____________?

A. at no load B. at 50% full load C. at 80% full load D. at full load...

The chemical used in breather is_______________?

A. asbestos fiber B. silica sand C. sodium chloride D. silica gel...

An ideal transformer is one which has_____________?

A. no losses and magnetic leakage B. interleaved primary and secondary windings C. a common core for its primary and secondary windings D. core of stainless steel and winding of pure copper metal E. none of the above...

Iron loss of a transformer can be measured by____________?

A. low power factor wattmeter B. unity power factor wattmeter C. frequency meter D. any type of wattmeter...