what is the main use of ac and dc drives ? it is only used for speed variation or for power saver also?

1 Answers  

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what kind of material to be used after ngr unit? cu or GI

1 Answers   Michelin,

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Differnce between Analog & Digital

1 Answers  

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how works inductive &capacitive sensors?

0 Answers  

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In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

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why no load characteristics of generator also called as occ

1 Answers  

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What are the complete specifications of a motor?.

2 Answers   RRB,

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i heard that power factor(PF) is the main concern for industries, if they are maintaining PF around 0.6 they will be fined for that. now the question is, how can they improve the PF ranging between 0.9 to 0.95 which is safe for them i,e escaping from the fine?

5 Answers  

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What should be the dielectric strenght value of transformer oil of 11/0.433KV distribution transformer and 33/11KV tranmission transformer ?

2 Answers  

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

0 Answers  

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How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.

0 Answers  

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In 3 phase induction motor even with low Voltage it reaches nearly it's rated speed why? (for example instead of 400V it reaches with 250V)

2 Answers  

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