what is KA rating and how can we choose switchgears on applications

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why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?

3 Answers  

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hello friends this is krunal here.. i have applied for he officer train in hpcl electrical stream.. any one who have applied before for electrical stream please help me out.. post ur reply to my mail id: krunal_airforce@yahoo.com.. any tips, old questions for paper or any help will do.. plz help me.. your faithfully, Krunal Darji

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design of IGBT firing circuit for 11KV

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why we are using earth pit in sub stations.?

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how can we decide where we have to DYn11 or other vector group transformer

4 Answers   BSL, Knight Frank, Security Printing and Minting Corporation of India Limited,

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What are the conditions for sustained oscillator or what is backhouse criterion?

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why the voltage level in transmission line are in multiple of 11kV, 22kV, 33 kV etc..( i.e., 220 V )?

4 Answers  

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bsnl tta exam question

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What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

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what is the differenc between A.C. and D.C, which is more dangerious?

4 Answers  

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what is basic difference between the normal tube light choke and electionic choke ?

4 Answers   Amaron,

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