In a megger, controlling torque is provided by-
Coil
The relative position and configuration of these coils ensure that as the pointer (and hence the coil assembly) moves, an opposing torque is generated that increases with deflection. Therefore, the controlling torque in a megger is provided by the specific arrangement and interaction of its coils, specifically the pressure coil system which includes a control coil, interacting with the field produced by the current coil.
Which of these instruments is used for measuring the insulation resistance?
A ______ is a combined unit of ampere meter, voltmeter and ohmmeter.
A zero to 300 V voltmeter has an error of 2% of the full scale deflection. If the true voltage is 30 V, then the range of readings on this voltmeter would be
The operating voltage of a megger is about
Which instrument is used to measure the high resistance?