Answer / waseem aslam

Control circuit wiring of substation refers to wiring of protection relays of transformer with the circuit breaker and wiring of over-current/earth-fault protection relay in the CB, including manual tripping operation.

Answer / k.prakashchandra

The control circuit is for opening and closing on command.

why do we lay up the core of a cable?

0 Answers  

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Define unilateral circuit?

0 Answers  

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I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?

0 Answers   KCL, MPC,

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Why a Transformer Noise during its running condition ??

11 Answers   NTPC, UPPCL,

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Fire pumps are not used with ELCB control, why ?

4 Answers  

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How many watts required for single phase power supply?

4 Answers  

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what is circuit recombiner and how it is different from circuit breaker

0 Answers  

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What is the formula to calculate distribution transformer De-rating on iron losses basis

0 Answers   IESCO,

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what is the difference between grounding and earthing......how can we differentiate each other.....

2 Answers   Wipro,

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Can anyone tell me how a 12v battery is transformed to 20,000v at the spark plug

6 Answers  

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what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

0 Answers   Bhel,

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Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

0 Answers  

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