what is the Transformer Impedence?How can calculate?

0 Answers  

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how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

0 Answers  

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how to determine the size of power cable according to load current

1 Answers   JSW,

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how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

0 Answers  

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what is the difference between earth and neutral.

9 Answers   DLF,

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whats was the problem if neutral and earth got 2volt from the ups output

1 Answers  

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why rms value of voltage is fed to transformer

1 Answers   Bhel,

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what is the advantage of Cathodic eathing system and what is the basic principle and how itis working, please explain clearly .

2 Answers   Meinhardt,

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why we use carbon brush in exciter&genrator?

5 Answers   ABB, SMC,

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how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers  

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whati s the sludge current in ups

0 Answers   Future Group,

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what is the difference b/w neutral and earth?what is the need of earthing and what are the different methods for earthing?

4 Answers   NTPC,

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