Answer Posted / omwikha

It is used to check the insulation resistance between the windings or between the windings and the earth terminal for the case of the motor. One lead of the megger is put on the earth terminal and the other lead is moved from one winding terminal to another as the megger handle is rotated for generation of voltage used for testing, the readings are noted and compared with the reference values to ascertain the condition of the motor.low values means insulation failure.

What is the exact minimum vale of voltage between an earth and netural which can damage or can do malfunction of the electronic equipments ? If this is mentioned in any book, pl.give reference.

2276

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what is the differences between microprocessor and general purpose computer

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Define conversion efficiency of a power amplifier.

1248

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2258

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2456

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