whats the existence of reactive power and when it arises?

0 Answers   IIT,

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my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?

2 Answers  

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What is UPS?

14 Answers   HSL,

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how give earthing conection to household equipment?

0 Answers  

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how to identify conection leads of an unknown electric motor

0 Answers  

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what is the difference b/w absolute encoder and incremental encoder?

0 Answers  

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how we can to the synchronization in transformer. What are the conditions for that.

1 Answers  

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block diagram of 2 ups system connected in hot stand by mode?

0 Answers  

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How the current flows in dc circuit?

3 Answers  

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why make protection 85% of winding?

1 Answers  

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what happens if commutator is removed in an dc machine?

3 Answers  

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Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????

1 Answers  

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