1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?

1 Answers  

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How will you define capacitance?

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what should we do when the CT secodary gets open? how do we short circuit it? using tester or screw driver? not dangerous?

6 Answers  

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IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.

0 Answers  

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where does the unbalanced current flow in the delta circuit

3 Answers  

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How to calculate busbar size & what is the procedure we make for determine that?

35 Answers   Auko Tex, Integra, PowerTech, Shadhin Group,

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difference between semiconductor & conductor & insulator?

0 Answers  

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whta does the middle finger stands in flemings left hand rule

3 Answers  

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Explain Power factor in simple words

1 Answers   ETO,

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the parts of transformers ?

1 Answers   Bhel, Facility management,

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what is active power & reactive power?

0 Answers   Avtech, Jindal,

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What is the function of wave trap in an electrical substation?

2 Answers  

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