Answer / raju jeyaprakash

Please ask your daddy, how to bye-pass transformer

dear all, in motor operation , motor is of 100 hp and bimetal relay setting is 130 amp, if relay is getting tripped on 120 amp balance current what can be the reason? Relay is newly replaced. I dont know but is there any frequency effect in thit case? Can frequency variation affect bimetal relay operation?

1 Answers  

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Is MEN and RCD related to each other ?? IF yes then how??

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why using in cable mm square which is mm & which is square why using mm & square.

1 Answers   Airtel,

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what is the internal fuction of a ceiling fan?

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tell me working of air circuit braker.

2 Answers  

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Why machines are avoided to work is saturation region of B- H curve?

3 Answers  

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Electricty is generated at around 16kV, then step up to 220kV for transmission then steped down to power transformers then DTs and then through the LT n/w it reaches the consumer end. At the consumer end 230V supply is required. So, why is electricity not generated directly at 230V and transmitted?

4 Answers  

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why do we require two lines one phase and a neutral for an ac transmission..is neutral potential zero..?if yes y carry a neutral line from generating station itself...why dont we take it from ground

1 Answers  

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why characteristics of overcurrent relay is time-->psm instead of time-->current?

0 Answers   ABB,

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What is slip in an induction motor?

0 Answers  

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how we can improove power factor?????????

8 Answers   TATA,

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what is the kva rating of 20 kv transformer?

1 Answers  

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