what is meant by Ac & DC drives where its useful ? how its functioning ?

3 Answers  

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How can i check a relay good or not?

2 Answers  

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Why do we will ground the positive terminal in electrostatic precipitator

1 Answers   JSW,

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What is ht lt switchgear.

3 Answers   Bhel, HBL Power Systems,

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Is it posssible to obtain the higher speed(3000rpm) for adiferentiallly cascaded induction motors(with 8 and 6 poles)

3 Answers  

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1.What is effect of capitance in transmission line? 2. After raising the voltage at receiving end what will be happen? 3.how we nullify or control the raised voltage at receiving end?

3 Answers   NTPC,

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explain me how a power factor is improved by adding a capacitor?what capacitor do to improve it?in simple words and in detail?thx

7 Answers  

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what difference between thermal and bi-metal over load relay?

2 Answers  

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How to determine the short circuit current for breakers and VCB.

1 Answers   Sabic,

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Where double earthing is required? Is there any power specification to have double earthing?

10 Answers   Delphi,

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different aspects of voltage stability

0 Answers  

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which element is neglected during fault calculation? a)resistance b)inductance c)capacitance d)reactance

4 Answers  

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