what is the pre charge circuit,what will be work which function it will be use plz tell me

0 Answers  

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what is mean by hvdc transmission technology .what is principle of hvdc transmission and technic of hvddc transmission .

1 Answers  

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How can we step up ac and dc ?

1 Answers  

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What is difference between start imitation and start interlock for 3 phase motor protection ?

0 Answers   Siemens,

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Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

0 Answers   Bhel,

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I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

0 Answers  

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what is the principle of generator , induction motor,d.c motor

1 Answers  

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Why ct secondary is not kept open while primary charged. Answer in terms of ct parameters.

4 Answers   Power Grid,

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how to calculate the knee point voltage of current transformer?

2 Answers  

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difference between the applicability of nortons and thevenin theorem

0 Answers  

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i need circuit star delta connection?

1 Answers   L&T,

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For a stable system, where should the poles of a system be in a root loci plot?

0 Answers   GE,

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