how and where megger works?

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how and where megger works?..

Answer / vijaykumar shetye

A megameter, or a Megger as it is commonly called, is used
to measure the insulation resistance of cables and other
electrical equipment. The measured value is in mega ohms.
Hence the term Megger.
Most meggers generate 500 Volts DC supply, but their
current capacity remains low.
When the two terminals of a megameter is connected to
across the equipment to be tested, the high voltage gets
leaked into the equipment. The resistance is inversely
proportional to the current flowing through the equipment
under test.
Originally, most meggers were analog in nature, and were
generating high voltage using a dynamo, when the lever is
rotated at high speed.
Today most meggers available are digital, and can
generate 500 volts as well as 1000V. Some meggers have
winding resistance testing facility as well, and hence can
be used as a single tool to test the resistance of a motor
in ohms as well as in Megaohms.
Meggers used for checking high resistance like that of
mains transformrs, generate much higher voltages and are
generally analog type.

Is This Answer Correct ?

114 Yes

2 No

how and where megger works?..

Answer / anusha reddy.m

Megger is used to find the insulation resistance .

Is This Answer Correct ?

122 Yes

46 No

how and where megger works?..

Answer / iraikhan

megger is a device with a hand driven dc generator and
direct reading ohm meter for testing the insulators in
other words its resistance

Is This Answer Correct ?

45 Yes

37 No

how and where megger works?..

Answer / k.babu

Megger inbuilted inside a dynomo which is used to energise
the system. Which is used to find the Earth Resistance

Is This Answer Correct ?

42 Yes

47 No

how and where megger works?..

Answer / meghraj kabdule

Friends Megger is mfg. company which first find out the IR
tester for the measurment of insulation resistance.

Is This Answer Correct ?

15 Yes

31 No

how and where megger works?..

Answer / taufic

megger is a device with a hand driven dc generator and
direct reading ohm meter for testing the insulators in
other words its resistance

Is This Answer Correct ?

11 Yes

27 No

how and where megger works?..

Answer / deepak kumar

megger is generally used for measuring the high resistance,hence it reffer as the megger mens it can measure the 500 mega ohms.it is used for testing the o.c and s.c test.it is combination of generator and direct ohmmeter.the speed of the megger is kept at 160 r.p.m.there are three range of megger.
1-300 v
2-750 v
3-1000 v

Is This Answer Correct ?

4 Yes

23 No

how and where megger works?..

Answer / shibukp22

megger testing tow type conducter to counducter and
counducter to earth

Is This Answer Correct ?

1 Yes

24 No

how and where megger works?..

Answer / ashwin

Go through the contents of this link:

http://en.wikipedia.org/wiki/Megger