what is the calculation of power factor?

4 Answers   GATE,

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what is safety of ups

1 Answers   JLL,

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Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

0 Answers  

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In case you don't have coal and salt for earthing, how can you achieve good temporary earthing?

1 Answers   Focus Energy, NHPC, ONGC,

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can d.c.transformer exist? if yes then what its max. rating?

6 Answers  

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why ELCB's are not useful for operation theater equipments ?

4 Answers   Reliance,

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why are transformers rated in KVA and not in KW

8 Answers   ABB, Bosch,

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why AC voltage source are generate as 50 Hz ?

4 Answers  

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WHAT IS VFD,FUNCTION, PURPOSE,

2 Answers   RasGas,

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if the length, number of turns and area of coil are doubled then inductance of the coil becomes.?

1 Answers  

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what is difference between tension tower and suspension tower?

8 Answers  

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different types of electrical cable?

1 Answers   Green Power,

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