what is the back ground of transformer working? applying voltage to primary and emf inducing in primary and secondary? how it is possible? please answer me with scientific approach?

5 Answers  

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An alternator is started without excitation then how much voltage it will produced at strating at full rpm??

4 Answers  

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I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

1 Answers   SPCL,

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whatis the test procedure for lightning arrester which was installed one year back. i want check it whether it is working or not.

1 Answers  

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What are the various types of LT panels? Name them.

3 Answers   Tyco,

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i am getting to neutral earth voltage zero ,is this a perfect earthing ?

3 Answers  

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What does impedance in the windings of transformer signify.

2 Answers   Johnson Controls,

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what is the lemen of a single 5mm 13000mcd white led pls reply

1 Answers   Eskom, Sona,

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what is the harmonics.

3 Answers   DLF,

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Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?

0 Answers  

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If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 Answers   ABB,

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why we are using2 wave trap in a feeder?

1 Answers  

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