Answer Posted / prti3116

ohms law is applicable only constant temperature operation,but temperature of the transformer should not constant...

Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

2883

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If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1835

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how to remover corona effect and hysteresis losses from contactor

1958

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What is different between Circuit breaker and Isolater?

1724

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How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter

7646

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tell me about roaster switch .& what is the function in transmission & distribution?

2607

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In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

2466

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what is load despatching

2156

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Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?

3290

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Why air circuit breaker off due to power failure?

1141

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Why single phase induction motors are not self starting ?

1607

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How to calculate multiplication factor in kva example 500kva ans pls ?

1876

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why -48 volts dc used in telecommucation

2548

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How do we calculate the Out put voltage of generator, after the excitation is being given?

1884

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1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

2872

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