Answer / tapeshwar pandey

It should be more than 11 mega ohm as per thumb rule.

Answer / kani

insulation resistance must be infinite otherwise leakage
current will flow ,so that insulation detoriation happen

Answer / murthy

Ideally in the range of 5oMohms is required for less
leakage current.2Mohms per KV of the cable at room
temperature is a thumb rule

Why mostly the HV side of transformer has Delta?

0 Answers  

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What is the use of Exciter in generator? & what will be the current of Exciter in 500 KVA DG Set?

2 Answers  

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What is Antipumping Function & If we have C.T how we find the Ratio ?

0 Answers  

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what are the factors to be considered while design the breaker either HT or LT??

0 Answers  

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what is a bus post insulator? explain its application in a substation.

1 Answers   Enercon, HAL,

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If a line which is drawing approximatly 2100amps what should be earthing streep size(using galwanize streep)?

2 Answers  

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For example, if I use Star delta transformer for distribution, Can I Connect 230 V lighting load bewteen secondary phase & primary neutarl. What will be the effect, if I connect in this manner?

2 Answers  

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What is surge impedence and surge loading....???

1 Answers  

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why would amp draw on neutral wire be as much as amp draw on the hot leg.

0 Answers  

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What is distance protection relay? where & why we use this relay?

2 Answers   Siemens, UltraTech, Voltech,

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What is core CT & it's function?

0 Answers  

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A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS?

5 Answers  

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