Answer / ravi kumar

Safety of vcb :[ Vacuum circuit breaker]
1: Earth fault relay
2: Master trip relay
3: Supervision relay
4: Short circuit
5: Shunt relay
6: Closing coil

Answer / arvind kumar

VCB SEFTY
Earth fault
Short circuit
Over current

Answer / kumar manish

VCB saftey-
1.Earth leakage
2.Current unwanted due to Short Circuit.
3.Over load

Answer / vijay raj

Oil type transfomar sefty ans dry type

Answer / bhanu pratap singh

all right

is synchrnous pannel is need for two eqal rating transformers to run in parallel

1 Answers  

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How supply comes to your home?

3 Answers  

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what is the contact resistance of Air circuit breaker??

1 Answers  

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1)Explain why the cradle guard is used on railway crossing in overhead line construction?

0 Answers  

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What is mean by sinewave.

0 Answers  

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In which type of circuit short circuit is dangerous in parallel or series and why?

6 Answers  

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What is MS-EXCELL?

0 Answers   NTPC, Siemens,

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How can i calculate heat load ?

3 Answers   DSSR, NSN,

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What is RMU, and what it's function?

2 Answers  

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what is the standard duration after failure EB power

0 Answers  

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Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC

0 Answers  

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i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

0 Answers  

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