Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

0 Answers   Bhel,

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Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2 Answers  

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is high voltage or high current is danger

16 Answers   L&T,

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how will calculate the safe starting current of 3-phase squirrel cage induction motor?

0 Answers  

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hello... i am preparing for GET. please send me previous papers..

1 Answers  

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HOW MANY POLES ARE THERE IN 3 SLOTS PER POLE PER PHASE MOTOR

2 Answers  

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How many type of ht insulator with name

1 Answers   Bhushan Power Steel,

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Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.

1 Answers   Electrical Tech,

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diffrence between alternating and pulsating field?

1 Answers  

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How is the air circuit breaker quenching the arc. If it is by air means, where is it come from?

1 Answers  

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what is meant by displacement & magnitude ?

2 Answers  

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What is BusBar integrity test and how it is conducted?

0 Answers  

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