For a transformer, operating at constant load current, maximum efficiency will occur at______________?

Related Mcqs:

Transformer breaths in when_______________?

A. load on it increases B. load on it decreases C. load remains constant D. none of the above...

The transformer ratings are usually expressed in terms of______________?

A. volts B. amperes C. kW D. kVA...

Which of the following is not a routine test on transformers ?

A. Core insulation voltage test B. Impedance test C. Radio interference test D. Polarity test...

Open circuit test on transformers is conducted to determine____________?

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

Which of the following acts as a protection against high voltage surges due to lightning and switching ?

A. Horn gaps B. Thermal overload relays C. Breather D. Conservator...