Answer / guest

IGBT - insulated gate bipolar transistor

Answer / abdul

IGBT - Insulation gate bipolar transistor is a high speed
switching device used in dc applications.

TRIAC - Triode for alternating current is a device use to
switch AC devices like lamps, motors etc,by taking a small
amount of dc i/p through its gate terminal.

Answer / mailsamy

Switching time, construction wise

What are the types of AMF(auto main failure) panel.

1 Answers  

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why we are discharging h.t supply during shutdown time

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Write masons gain formula.

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What will be the capcity of 3 phase DG set require for 25 KVA single phase lighting load?

7 Answers   Supernova,

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why series motor cannot be started on no-load?

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Dsitrubution transformer minimum IR value

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What is essential to prove safe isolation of electrical circuit?

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why humming sound occured in h HT transmission line

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what will happen if we double the input frequency of a transformer keeping the voltage constant?

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if dc is better then ac...then why we are perfering ac over dc?eg:at home?

2 Answers  

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what is the concept of directional power?

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what is restircted earth fault relay,how it works? what is diffrance btwn normal earth falut relay & restricted earth fault relay?

1 Answers  

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