what is earthed and inearthed cable or system?

1 Answers   CCCL, L&T,

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High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

0 Answers   NTPC,

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

0 Answers   BRG,

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operation of diesel generator

0 Answers  

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why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...

4 Answers  

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Pls explain about vfd control?Where it is used, Give some example?

3 Answers   Siemens,

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Why the suply frequency in INDIA is 50HZ

5 Answers   HCL,

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exact definition of reactive power in power system

2 Answers   Sreetech,

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how much distance is required for earth pit to earth pit in substation???

3 Answers   Divis Laboratories,

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To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

0 Answers  

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The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

0 Answers  

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How a capacitor discharge weld power supply works? what is the use of a pulse transformer?

0 Answers  

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