what is formula in determining the size of Circuit Breaker for transformer with the following specifications. 7 units of 1600 volts (primary) and 400 volts (secondary). Both Primary and Secondary will have a circuit breaker which is SF6. What should be the Switchgear Main Breaker Size anf the sizes of each brances Circuit Breaker for Primary.

1 Answers   ABB,

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What is phenomenon of electromagnetic induction and how it works?

0 Answers  

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what is the Excaste meaning of CT Saturation?? 10 P 20, 15 VA, what is the meaning of 10, & 20. if the CT polarrity changed what will happened?? what is the differece between measuring CT & Protection CT?? what is the Saturation Point of measuring CT & Protection CT??

1 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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What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..

0 Answers   ABB,

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only three phases are coming in step down tranformers.how to get neutral?

5 Answers  

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which type of capacitor store high amount of energy for long time ? ( polarized or unpolarized )

1 Answers  

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what is SWA type of cable?????

4 Answers  

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does not the circulating current in a transformer affect the flux distribution in the transformer core

1 Answers  

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RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?

0 Answers  

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What is switch gear? How it is work ?

1 Answers   AbaQulusi Municipality, Lupin,

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What are the maximum and minimum ratings of MCB,MCCB,ACB,OCB,VCB and SF6 breakers?

2 Answers   ABB, SK E&C, Sodexo,

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