Answer / ak

calculate line current for transformer
I=1000000/(1.732 x 33000)
=17.50 Amps
based on the value of current select appropriate cross section area of particular gauge.

how fault in an electric system is detected & hw protection of equipments is done ?

6 Answers   NTPC, RLY,

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what is stacking factor?

1 Answers  

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I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting

0 Answers   Oman Cables Industry SAOG,

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why lightining is not available in swith yards?

1 Answers  

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what is oti and wti

3 Answers   Jindal,

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How many types oil using in transformer ? How many letars using in transformer..?

0 Answers   TATA,

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Why we use duplex coil and hook switch in telephone system?

0 Answers  

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What do you mean by creepage distance?

4 Answers   Amara Raja,

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In CDG type IDMTL realy O/L , E/F, O/C which are used for out going feedrs,on R-phase o/c element, Y-phase , e/f elecment and on b -phase o/c element will be connected . Why the earth fault on center phase only, why not on other two phases?

2 Answers  

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how fluoresent lamp works??

2 Answers  

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I have a shop heater with a 1/3 hp capacitor start, induction motor driving the fan. Intermittently, the fan motor speeds up significantly for several seconds (15-60 sec) then slows to normal operating speed. The manufacturer suggested changing the capacitor which made no sense, but I did it to no avail. Could this possibly be caused by the centrifugal switch intermittently reconnecting the start winding?

1 Answers  

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How electrical power(MW)is varied OF an A.C Generator in response to varying steam input to a steam turbine ?

1 Answers   Hindalco,

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