Answer / seshu

In the protection philosophy our aim is to protect the system under abnormal conditions for which we require tripping of the circuit breaker. So that every circuit breaker having 2 nos Trip coils (for redundancy).Once the breaker closed it has to trip so the monitoring of Trip coil supervision is necessary .In general closing coil supervision is not necessary and it would be additional cost

when we use neutral line as grounding.

1 Answers  

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I have a generator of 300kw.400V,50hz . what is means can i assume the load Red Phase with Neutral 300kw.Yellow phase with neutral 300kw and Blue with neutral also 300Kw. or - red with neutral 100kw same as yelloe and blue phase also giving 100kw with neutral respectively

3 Answers  

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what is different between installation and commonissonig.

3 Answers  

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10 hp motor ,7.5 kw ,960 rpm, full load current 15.5, delta connection so how much take current no load trial time. any formula please give..... second question :- what is different between brekar control wiring and motor starter control wiring

1 Answers   MSP,

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how step down and step up voltage is occured in transformer

3 Answers  

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Can a dc motor works as a dc generator. If yes , then how?

2 Answers  

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What is the function of an Auto reclosure relay. How does it work??

4 Answers   KSEB,

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why Copper loss is represented as I square R ?

5 Answers   L&T,

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What is restricted earth fault protection ?

1 Answers  

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Difference between ac parallel circuit and ac series circuit?

0 Answers  

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what is the difference between earthing and grounding?

6 Answers   Bhel, Wipro,

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What do you mean by Frame 5 Gas Turbine as well as Mark II.

0 Answers  

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