why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??

6 Answers   Jindal,

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what is PWM in IGBT and how it works for drive.?

0 Answers   BRG,

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WHAT IS THE DIFFERENCE BETWEEN UNDERVOLTAGE COIL, CLOSING COIL AND SHUNT TRIP COIL OF AN ACB?

2 Answers   Alstom,

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is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases??? as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????

2 Answers   Bhel, DRIEMS,

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IN 3 phase induction motor where we give i/p supply & how its working ?

2 Answers  

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what is meant by neutral compensation factor and where it is used

0 Answers  

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What should be the earthing resistance of an industrial substation and also What should be the house hold earthing resistance?

20 Answers   Jindal, Pharma, TAAT, TATA,

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in HVDC transmission system ,monopolar link has one conductor usually a negative polarity and use ground or sea return ?through negative polarity we could pass electricity or not yes means how it is possible

1 Answers   Gyana, NNN,

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22kV HT incoming should be 3 phase or 4 phase? why is it not 4 phase?

1 Answers  

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What is the numerical quantity of sqcm?

0 Answers  

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Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case

1 Answers  

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what is the transformer rush current?

0 Answers  

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