what is difference between 2 pole structure and 4 pole structure in transformer yard

0 Answers   Hospira,

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Why Lightning arrester used? Can we use piece of iron as a core material of transformer, if No, why? In CRGOSS material what is meaning of cold rolled grain oriented? Why Impegrenation of Transformer is done? Properties of Insulator? what is phase angle? Testing of transformers (Routine & Monthly)?

6 Answers   NTPC,

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What do you mean by Transformer?

9 Answers   Hyundai, NTPC, wbsedcl,

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why we used capacitor in induction motor?

4 Answers   Mitsubishi,

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current transformer cannot measure voltage or not ? then y we use P.T ?

1 Answers   Bhel,

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Does VT metering core can be used for synchronizing.

1 Answers   Shrishti Power Technologies,

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To transmit the Power which must be present…? a) Reactance b) Resistance c) Capacitance d) none of above

9 Answers   ABC,

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What is plc.

2 Answers  

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Define open loop control system.

0 Answers  

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Why the generating station rating is in KW though the rating of generators in KVA?

8 Answers   HAL,

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in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?

0 Answers   DNJ Energy LLC, WI,

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when any relay trips in any ckt then what type of setting is there in motor?what is function of relay in that ckt?

3 Answers   Finolex,

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