what is the difference between ac drives and dc drives?

1 Answers  

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1 sq.mm alluminum cable hou much current caraing capacity

5 Answers  

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it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

0 Answers   TATA,

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Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

0 Answers  

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why the power factor in inductive load is lagging while it is leading in capacitive load?

6 Answers  

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why firewall is build up between two transformer (220/11kv,50MVA)?what should be the firewall height?what is the clearance between firewall and transformer?

2 Answers   Siemens, Tous Stadt,

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Where earth point should provided in Ships or Submirines.

2 Answers   SSC,

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whate is the meaning of balance/unbalance,in stabilizers type

0 Answers   TCS,

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How can we calculate the rating of capacitor bank to be connected for a particular load(ex.100kw)to improve the power factor from 0.8 to 0.9?

4 Answers   Voltas,

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What is actual name of Transformer oil.

6 Answers  

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PLS SEND THE RRB CHENNAI MODEL QUESTION PAPER my email id is ganesan98655@rediffmail.com

0 Answers   RRB,

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how does a liquid starter reduce the starting currents?

0 Answers  

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