Answer / subhajit mandal

mineral oil.

why transformer ratings are in kva

4 Answers  

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I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

0 Answers  

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how to varied the frequency in transmission line and how i kept it as a constant one?

2 Answers   L&T,

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Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

0 Answers  

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difference between ac and dc motor

1 Answers  

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effect of single phase transformer on full load current?

2 Answers  

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what is impedance?

1 Answers   PWD,

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why earthing point in the 6amps/16amps socket bigger than the remaining (Phase & Neutral)points.

1 Answers  

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Can we step up a 230V supply to 400V using a single phase transformer??

2 Answers  

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Why star pointed terminal have no current? how?

3 Answers  

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please give some hindalco placement papers for written exam

0 Answers   Hindalco,

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what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

0 Answers  

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