Answer / koti

VCB upto 33 KV only. SF6 for EHVs.

Answer / rajiv pandey

both are circuit breaker.VCB in use only 11kvbut SF6 use in
above 11kv .SF6 is costly project then VCB.

what is the use of vcb & isolator in substation?

0 Answers  

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what is sf6 where it is use & working or function ?

5 Answers  

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hopkinson's test

5 Answers   Bhel, NTPC,

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what is the usage of microcontroller in the panel board?

0 Answers  

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respected sir, sir recentely i have applied for chennai and tiruvananthapur section enggineer and juniour engg in electrical dept. but still i donot get how i have to syart my preparation and also t the same time i donot know exactly what they r going to give in the examinations i mean which sections they r going to give i donot know exactly, can u prefer whichh books i have to follow and model papers or both boards

1 Answers  

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difference between slippring induction motor and Generator?

1 Answers  

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what is the Transformer Impedence?How can calculate?

0 Answers  

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how can calculate resistance box for 15 kw, 6 pole, RV-230, RA-42 motor

0 Answers  

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why the voltage level in transmission line are in multiple of 11kV, 22kV, 33 kV etc..( i.e., 220 V )?

4 Answers  

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difference b/w current and voltage relay?

1 Answers  

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Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.

0 Answers  

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What was your role in the silicon evaluation/product ramp? What tools did you use?

0 Answers   Intel,

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