The pressure coil of a wattmeter should be connected on the supply side of the current coil when______________?

Related Mcqs:

Which of the following properties a damping oil must possess ?

A. Must be a good insulator B. Should be non-evaporating C. Should not have corrosive action upon the metal of the vane D. The viscosity of the oil should not change with the temperature E. All of the above...

For handling greater currents induction wattmeters are used in conjunction with______________?

A. potential transformers B. current transformers C. power transformers D. either of the above E. none of the above...

The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a _________________?

A. single-phase winding B. two-phase winding C. three-phase winding D. any of the above...

In a single phase power factor meter the phase difference between the currents in the two pressure coils is___________________?

A. exactly 0° B. approximately 0° C. exactly 90° D. approximately 90°...

The principle on which vector voltmeter is based is_____________?

A. that it works on the principle of complex variation B. that it measures the response of linear ramp voltage C. same as digital meter D. that it measures the amplitude of a single at two points and at the same time measures their phase difference...