Answer / nithi

Undoubtly,
MOSFET.It has the high switching frequency of
around 100khz.

SCR - 2khz
IGBT - 20khz

Answer / chint

igbt

Answer / chandrika

mosfet can be operated at high frequency ,because in this
only majority carriers r there and no secondary breakdown
is not there.

Answer / mohamed ali

Hi,

Insulate gate biboer transister because of with out
intermpssion,

Please let me know when replacing electromechanical Relays for protection of generators with sr489 multilin Relay, then there is no need to use 86 master trip relay Too. I am wondering this multilin relay has no contact to Stop breaker reclosing as 86 does

1 Answers   Neucel,

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150 hp moter how many kwh in 1 hour and what forfula 3 phase kwh.

5 Answers   College School Exams Tests, CPCL, Syncom, Thermax,

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what is the relation between voltage & frequency

11 Answers  

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explain different losses in a transformer.

0 Answers  

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How to calulate the NGR resistance ?

1 Answers   L&T,

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What is effect of low pf on HT supply.

6 Answers  

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can we connect 2.2kw star motor in delta passion?

1 Answers   Zuari,

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flush point of transformer?

2 Answers  

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My meter CT is 200/5amps Then my electrical meter MF=???please suggest

2 Answers   KFC,

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in thermal power plants by opening the turbine governor valve increase the generator load. how

3 Answers  

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what is the breakdown voltage value in BDV test in transformers?

6 Answers   Siva, TATA,

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Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

0 Answers  

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