Which of the following method is most widely used for insulation resistance of the cable?

Which of the following method is most widely used for insulation resistance of the cable?

Right Answer is:

Direct deflection method

SOLUTION

The direct deflection method is used for high resistance measurement. In such method, a high resistance about 1 kΩ or more) and very sensitive moving coil galvanometer is connected in series with the resistance to be measured along with supply voltage as shown in Fig.

The deflection of the galvanometer gives a measure of the insulation resistance. This method is widely used for measuring the insulation resistance of the cable.

Scroll to Top