Answer / guest

for pulse width modulation

Answer / raxit

because IGBT is a voltage control device which is easy to control, it doesn't required commutation circuit. and it's SOA
is large.

Answer / sunil kumar

high efficiency and fast switchinghave & very high current
handling capabilities in the order of hundreds of amperes
with blocking voltages of 6000 V.

Answer / nandhakumar

it is also used for the interfacing purpose

How does the slip regulator works as a startor

0 Answers  

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Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?

9 Answers   Indian School of Mines,

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what is Diversity factor in electrical installations

3 Answers  

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For high voltage and low current Circuit Breaker preferred is vacuum circuit breaker.why?

1 Answers  

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sir, 3phase induction motor takes different pf and different KW in three phase while running,explain reason

0 Answers   UltraTech,

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What is meant by Energy Efficient Transformers??? give significance

1 Answers   MahaGenco,

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why we use dc motor instead of ac motor?

7 Answers   Air Force,

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through which medium return supply given to alternator please answer in details

1 Answers   MahaGenco,

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WHAT IS LINE TRAP,HOW IS IT FUNCTION?

1 Answers   L&T,

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what is the difference between earthed system and unearthed system.. where do we use unearthed system because in electrical catalogues always cable for earthed and unearthed system is given..pls elaborate

3 Answers  

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what voltage to be select in megger for insulation resistance testing to L.V , H.T cables,motors and transfomer?and ohms valve should be giga ohms only or what?

1 Answers   Deevya Shakti Paper Mills,

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I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)

9 Answers  

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