Question

9. Explain the construction and use of Megger for the measurement of earth resistance.
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Answer 1

Answer:

The constant voltage is usedfor testing the insulation having low resistance. TheMegger has three coils two pressure coils and one current coil. The pressure coil rotates the moving coil in the anticlockwise direction, whereas the current coil rotates it in the clockwise direction.

Explanation:

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Answer 2

Answer:

: The Megger is the instrument uses for measuring the resistance of the insulation. ... If the resistance of the insulation is high, the pointer of the moving coil deflects towards the infinity, and if it is low, then the pointer indicates zero resistance.

Explanation:

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