what is the working of ups.

7 Answers  

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Can VFD step up to 60 Hz if it is designed to receive 50 Hz input?

3 Answers  

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DG drop how much freqency at 100% load?

3 Answers  

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Why tripping not occur when the transmission lines (11KV & above) breaks? Doesn't we provide earthfault protection for it?

1 Answers  

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What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

0 Answers   L&T,

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What will happen when we connect 2 bulbs in series between 2 phases

7 Answers   Pepsi, PowerTech,

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In single phase capacitor motor, if the motor rotate reverse direction then how much power will be consumed by the motor and why?

0 Answers  

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what is lap & wave winding

1 Answers  

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in case of transformer the power factor is depend on input or the output

1 Answers  

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what is negative,positive abd zero sequence current explain clearly

1 Answers   Jindal,

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WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO

0 Answers   Jk Tyres,

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why does a dc machine has high efficiency while working as a generator than as a motor

1 Answers  

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