Answer / anil vaniya

Oil circuit breaker,air circuit breaker, vaccum circuit breaker and gas circuit breaker

Iin ESP why positive is grounded ? why not negative ?

0 Answers  

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A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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Why 11KV PT Secondaries [(11000/1.732)/(110/1.732)/ (110 / 3)]are in star connection ? And why the same should not be in delta ?

1 Answers  

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what is surge impedance loading and it's significant in power system?

2 Answers  

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Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 Answers  

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What is the difference between generator and turbo generator - related to power gereration

1 Answers  

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how to prepare PPM schudule

3 Answers   TATA,

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we have 350 kva capcitor bank which is not showing KW. dose capacitor shows kW OR not.

2 Answers  

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Excat meaning of burden in only one word?

3 Answers   Bhel, DG Electricals,

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How we calculate DC inducation moter Amp? Sir pls give me formula......

0 Answers   Superlite,

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what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??

11 Answers   NTPC, ONGC,

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Why in Digital Megger for finding Insulation resistance,-ve is applied to core or conductor and +ve is applied to ground.

1 Answers   ACC,

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