Answer / satya

it acts just like a inductor

WHAT IS PRINCIPLE OF TRANSFORMER

10 Answers  

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state the functions of different parts of star delta starter.

1 Answers  

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I want Primary side delta and Sec side Star connection transformer . but i have received Star - Star transformer ,shall i use the same transformer by giving the only 3 ph on Primary side without Neutral connection on the Starpoint.

5 Answers  

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draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

0 Answers  

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in communication what is the role of elelctrical engineer?

3 Answers   Quippo, Reliance,

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why battery set is required for D.G.set?

7 Answers  

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Why semi-conducting insulation is used in XLPE cables?

1 Answers  

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what is the full form of ka (100A mccb KA)

1 Answers  

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where the lexical paramater will use in fron end?

0 Answers  

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WHAT TYPES OF OIL(STRUCTURE) ARE USED IN POWER TRANSFORMER INSULATION?

4 Answers  

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In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

0 Answers  

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Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

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