A megger is an instrument that gives the reading in:a)voltb)ohmc)henryd)ampereCorrect answer is option 'B'. Can you explain this answer? | EduRev Electrical Engineering (EE) Question

Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A megger is an instrument that gives the read...

A megger is an instrument that gives the reading in:

a)
volt
b)
ohm
c)
henry
d)
ampere

Correct answer is option 'B'. Can you explain this answer?

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Most Upvoted Answer

A megger is an instrument that gives the reading in:a)voltb)ohmc)henry...

Megger:

Megger is a portable instrument that is used to measure the insulation resistance of the electrical machinery or system.
It can be battery operated or mechanically operated (hand crank dc generator) and gives a direct reading in ohms.
It basically works on the principle of electromagnetic induction.
The electrical power to a megger is provided by a permanent magnet D.C. generator.
The operating voltage of a megger is about 50 to 100 V.

Points to remember:

Megger is also called an insulation tester because it is used to measure the insulation resistance of underground cables, motor windings, etc.
The loss of charge method also used to measure the insulation resistance in MΩ.

Answered by Gate Gurus · View profile

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