How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

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sir, Is their any measuring unit of knoking? please explian?

0 Answers   Kirloskar,

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why is neccessary Tap changing of power transformer with in a certain time

1 Answers  

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What is the "IS" for Rising Main?

1 Answers   APTransco, NTPC,

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Define sensitivity?

0 Answers  

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Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.

0 Answers   Balavigna,

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why the capacitor bank unit is kvar

3 Answers   Infosys, L&T,

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If we give 2334 A, 540V on Primary side of 1.125 MVA step up transformer, then what will be the Secondary Current, If Secondary Voltage=11 KV?

3 Answers   L&T,

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what is numerical relay explain its operation

2 Answers   ABB,

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What is the method & formula of Fault level calculation in power Transformesr.

3 Answers  

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how can see the ac indoor or out door ac which Tr

0 Answers   Wipro,

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The undesirable property of an electrical insulating material is

3 Answers  

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