Why double earthing is required ?

1 Answers  

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what is called inrush current??

1 Answers   KSEB,

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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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what is the difference between self excited & seperately excited ?

3 Answers  

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Current chopping mainly occurs in air blast circuit breaker.why?

1 Answers  

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As an electrical engineer what are the responsibilities which i can hold in TCS?

0 Answers   TCS,

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On what principle electric motor works?

0 Answers  

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can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

0 Answers   NTPC,

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what mean ohm

1 Answers   Shoba Devlopers,

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explain the transient reactance

1 Answers  

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why we can not use dc in our country( INDIA)

5 Answers  

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what is the term of desruptive voltage

5 Answers   Bhel, Energy Infratech,

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