The maximum efficiency of a distribution transformer is____________?

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...

A Buchholz relay can be installed on______________?

A Buchholz relay can be installed on A. auto-transformers B. air-cooled transformers C. welding transformers D. oil cooled transformers...

During short circuit test iron losses are negligible because of _____________?

A. the current on secondary side is negligible B. the voltage on secondary side does not vary C. the voltage applied on primary side is low D. full-load current is not supplied to the transformer...

The transformer oil should have _______ volatility and _______ viscosity?

A. low,low B. high,high C. low,high D. high,low...

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...