If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

0 Answers   Usha Capacitors,

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anti pumping relay function

3 Answers   Hofincons,

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How can you measure battery AH?

1 Answers  

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define excitaton voltage and excitation current?

2 Answers   Allied Group,

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How big (size) can the tertiary winding be in transformer? Can we load the tertiary winding, if yes then how much we can load it?

1 Answers  

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Difference between earthing & grounding.?

0 Answers   Nitco,

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What is the purpose of reactor.why we used in over head line?

2 Answers  

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what about GD square and its important for motor design?

0 Answers   Innovis, MNC,

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CAN ANY ONE EXPLAIN THE KNEE VOLTAGE OF THE CT?

3 Answers  

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What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

0 Answers  

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how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

1 Answers  

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What is ahu ? Working principal.

0 Answers   Sodexo,

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