Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?

9 Answers   Indian School of Mines,

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difference between isolator and circuit breaker?????

7 Answers   Enercon,

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what are frequency changers ? Tell me about commertially availble frequency changers ?

1 Answers   GE,

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which one has maximum efficiency autotransformer or transformer?? and why??

2 Answers  

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Is 2000kva stabilizer suitable for 1h.p split air conditional

2 Answers  

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hey guys help me out.....what  are the industrial uses/functions of nozzles in industries 

0 Answers  

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why single phase induction motors are not self staring ? how can we start the 1-phase Induction motor ?

3 Answers   BDL,

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What are the reason of unbalanced secondary voltage of HT transformer 33kv/6.6kv ? Incomming voltage is balanced.33kv each secondary voltage 6.6 kv 6.4 kv 6.4 kv At no load conditions.

1 Answers  

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What is the different type of class in CTS and why it is required

2 Answers  

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How silicon gel sucks moisture in the transformer, its have any small exaust fan behind silicon gel.

4 Answers  

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when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

0 Answers  

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How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

0 Answers   Biocon,

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