(April/May. 2010)
9. Explain the construction and use of Megger for the measurement of earth resistance.
(Oct/Nov. 2007)
WRONG ANSWER WILL BE REPORTED
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(April/May. 2010)
9. Explain the construction and use of Megger for the measurement of earth resistance.
(Oct/Nov. 2007)
WRONG ANSWER WILL BE REPORTED
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The constant voltage is used for testing the insulation having low resistance. The Megger 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.