is there any role of power factor with frequency variation? and how we can manage the frequency variation?

0 Answers   Wipro,

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what will happen if we give a dc supply to a transformer.?

10 Answers  

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how does it help for selection of a transformer.

1 Answers   Reddy Labs,

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What is Magnetic Current Test of Transformer.

2 Answers  

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what should be the resistance between two winding. Let 10 kw motor

3 Answers  

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explain transformer ct connection?

0 Answers  

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why capacitor bank always connected in delta,why not in star to a system?

15 Answers   NHPC, NTPC,

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What is PLL? what are it's advantages?

1 Answers   BREB,

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Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

0 Answers  

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What happened when voltage will half value of current ...

0 Answers   SCL,

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?

0 Answers  

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For 132 KV line, PT or CVT which is prefered for measuring & protection? is there any IS or IEE standard available?

1 Answers  

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