Answer / sanjib chakraborty

how i can analysis the vector group ZNYN11 by testing

During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

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why designer use kva rating instead of kw in transformer rating???????????????

9 Answers  

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what is a switchgear. what is its work & where it is used?

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what is neutral grounding resistor?

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how to varied the frequency in transmission line and how i kept it as a constant one?

2 Answers   L&T,

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How to calculate the average power factor in 3 phase unbalanced system

5 Answers   Bhel, MacLellan,

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What is the use for cable entry in control room?

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DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

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What happened when a three phase induction motor work on two phase supply.9

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what is difference bwt active&passive component

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There is no such thing as a Generator. All power generating devices are Alternator since both generate alternating current since this is the only way electrical power can be generated. In "generators" the alternating current is converted into DC inside the housing of the "generator" in order to give out DC Do you agree? If not please educate me. How else is DC generated if not like above?

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why phase plates are used in transmission line????

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