What is the latest generation of circuit breakers called?

1 Answers   Focus, OPTCL,

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what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

0 Answers   ABB,

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what is units of resistance

3 Answers  

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Transformer's core is made up of which material and why so?

10 Answers   ABB, NTPC,

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active elements are those which are capable of

2 Answers  

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current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

0 Answers  

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what is the principle of generator , induction motor,d.c motor

1 Answers  

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1 sq.mm alluminum cable hou much current caraing capacity

5 Answers  

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I am getting differential earth fault in my transformer realy , i have checked all its CT & control wiring but do not get fault, Please help

6 Answers  

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How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?

0 Answers   ADS Spirits,

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How do we find the rating of a transformer, if it got burnt badly.

0 Answers  

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Which loss in DC machine is maximum?

1 Answers   IFFCO,

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