what is the formula for calculating of dielectric strength of transformer oil.

2 Answers   Bhel,

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1.what is the basic difference between surge arrestor and lightning arrestor and where we use it. 1.what is the difference between metal oxide without gapped lightning arrestor and with gapped lightning arrestor

2 Answers  

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does over charging of a battery reduce its life?

4 Answers   KSEB,

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HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

0 Answers  

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

2 Answers  

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what is meant by negative half cycle

2 Answers  

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different between grounding & earthing?

23 Answers   L&T,

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How to conduct the Magnetic Balance test on Power Transformer?

0 Answers  

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if 2500 KVA TRANSFORMER CAPACITY.33KV INCOMING HOW ARE AMPEAR PRIMERY SAID

3 Answers   Cipla,

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What is the secondry voltage of 420kV Current Transformer , the rated current is 2600A

6 Answers  

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what is breathing?

0 Answers   PWD,

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IDMT relay are mostly used for protection against..??? 1)Earth Fault 2)Inter turn fault 3)Overloading 4)None of the above

1 Answers   Indian Railways,

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