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Question

Which of the following is a major power factor?

A.

Underground cables

B.

Reactors

C.

Mercury arc rectifiers

D.

Transformers

Answer ( Option A)

Underground cables

Solution

Due to capacitance effect charging current is increased in underground cables, that results in a leading power factor. The inductance value being negligible in cables, only capacitive effect is obtained. Underground cable is a cable that is varied below the ground.

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