Answer / sateesh

for higher frequencies we can use MOsfet
for lower frequencies we can use igbt and rating of igbts r
higer compared to MOSFETs

Answer / gopaul

mos controlled thyristor (mct)

Answer / fat-s0

It depends on the application. A good power electronics
book usually shows a good image of the power and frequency
range in which most switches will find optimal use.

Answer / dinesh kumar

Silicon Controlled Rectifier (scr)

What are the steps for Testing of 6.6KV HT Panels?

5 Answers   BSL,

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why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

0 Answers  

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What is a soft start?

2 Answers   Bhel, jlpl,

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How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

0 Answers  

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What is the reactive power and how to control the reactive power in power plant

14 Answers  

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What is the scale analysis for condensor of HVAC system

3 Answers  

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We wish to test 60 Hz systems from a 50 Hz supply. To acheive frequency conversion, we use a VFD. The VFD powers 40 kVA transformer, which has motor and non-motor loads on it. Will the transformer work?

2 Answers   Suzlon,

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is there interlocking between duty and standby chilled water pumps?

1 Answers  

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How can CALCULAT the current carrying capacity of aluminum and cOpper cables respective of that Sq.mm ? with formulas ?

12 Answers   Bajaj, Eagle, Godawari Power and Ispat, Havells, L&T, Mascot, Polycab, SGML, Sterling Wilson,

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WHAT IS MEAN BY MAGNETIC LOCKING

3 Answers   Bhel,

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Why the transformers are rated in KVA. ? in new view.

2 Answers  

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I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 Answers  

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