Answer / biswajit_panda

IGBT is nothing but a switch,we can use even MOSFET instead
of IGBT.but the thing is that,IGBT has faster switching
speed,otherwise called the operating frequency,hence the
performance and efficiency of the UPS system gets improved

Answer / shaikh_mohammedfarhan

full form of IGBT Insulated Gate Bipolar Transistor

Where can i get practical knowledge of solar system?

0 Answers  

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I know during Surge Impedance Loading maximum power is transferred through a transmission line and also Sending end voltage becomes equal to Receiving end voltage i.e Vs=Vr so my question is if both end voltages are equal then how current travels in such line hence how power is transmitted because flow of current needs Potential difference??

3 Answers   NTPC,

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The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

0 Answers   Caterpillar,

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what is the formula for converting dc power(watt) to ac power (watt)?

3 Answers   ABB,

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why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?

1 Answers  

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what is isochronous mod? what is voltage drop mode and p.f mode?

0 Answers   ABB,

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please send me privious exam's queation papers of section engineer(electrical).

0 Answers   RRB,

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what is the function of mccb?

6 Answers  

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the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.

4 Answers  

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Why synchronous motor runs at a fixed speed? what is the name of that fixed speed?

4 Answers  

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What will be the sampling frequency that reveals the same sampled signal?

1 Answers   CCP,

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why we increase the small speed of turbine when alternator just synchronized to grid in steam power plant

2 Answers   PSEB,

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