Answer / sethar12

General rule is 1 MOhm/kV + 1, so for 132kV side
transformer, megger value must be at least 133MOhm.

Answer / haikal

As general rule in using megger is 1 MOhm/kV, so minimum
value is 132 MOhm.

Answer / c. devadas

132 x 2 Meg.Ohm at 70 degree celsius. Every reduction of 10
deg.C will double the insulation value.

how we can check new PT ? without name plate.

1 Answers   Indo Power Projects,

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why we cannot protect 100% winding of an alternator by using differential protection?

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transmisssion type

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What is shunt voltage and u v voltage witch one best

0 Answers   SEL,

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hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

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what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

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1 Answers   National Drilling Company,

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how can we can take BDV test in transformer?

5 Answers  

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how to carried out tan delta test in 11 KV alternator ?

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what is the use of Antipumping in HT breakers.

9 Answers  

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If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

0 Answers  

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Is there any thumb rule for cable selection for any current rating ?

1 Answers  

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