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.

What is the function of NER and NET?

0 Answers   Asian Paints, GHH RAND,

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what is short circuit force ? How to calculate it for Panel?

1 Answers   Bilt,

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Define cut-off rate?

0 Answers  

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What is the ampereage of .75 ton Ac

1 Answers  

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in VFD when freq is reduce the voltage will reduceor not if it will reduced upto ...

8 Answers  

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What is static Device & Mechanical device? Is transformer a static device?

5 Answers   ABB, Emco,

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Differene between KVA and KW.

6 Answers   Bharti,

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how to calculate the ct burden?

1 Answers  

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What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

0 Answers  

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explain with diagram how to protect transformers and substations from over current with help of CT's?

0 Answers   BARC,

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what is the difference between HV and LV Breakers?

4 Answers   GM General Motors, OEG,

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our company have 750 kva oil transformer.still we have facing a problem that is when voltage is 11.5 kv coming from HT side then LT-side voltage is 420v or above at tape 1.please give me best solution to decrease the voltage

4 Answers   Gannon Dunkerley,

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