Answer / badshah

1.2 times that of 50 Hz Power. Frequency increases the
Speed & which in turn increases the power consumption
[P=(2*pi*N*T)/60 and N = 120f/Poles)]..so the ratio is
60/50. But the losses will be more, cause iron & hystersis
losses proportional to frequency squared. I think overall
efficiency may be reduced than when the motor is connected
50 Hz supply.

what is the value will come when megger the phase to phase ,phase to neutral ,phasae to ground ?

3 Answers  

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what happens if earth of 33kv cable is not connected to earthing pits? please send this query's answer to ngrm.sudha249@gmail.com

0 Answers   Bhel, CFL,

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we done magnetic balance test for 33KV /440V transformer in our company , but the ratio out is confusing us Voltage applied in RY = 440 , at RB = 320 and YB = 60 RY 440 = ( RB + YB ) 380 only Please let me know what type of problem is it.

2 Answers  

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While connecting bulb in Series/Parallel,there is any difference in glowing

3 Answers  

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what size of copper busbar use for 11kv 630A

3 Answers   ABB,

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If we want to change a contactor of faulty one what are the conditions want to fullfil

0 Answers   Qatar Shell,

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Can you any explain about active,reactive and apparent power in power system with example.

1 Answers  

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explain which quantities change in the starting and the and the running condition in induction motor

0 Answers   Gulf Spic,

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What is CBCT ? Why & Where it is used?

14 Answers   BCT,

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1) Can anyone give me a typical value for Insulation Resistance of 11kV xlpe cable? 2) How much will the IR value decrease per KM of cable length added?

1 Answers  

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Is there any difference between circuit breakers and isolators

7 Answers  

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a distribution transformer(3 phase)supplying 440volt per phase.now suppose one of phase voltage(230volt) becomes zero.what will be the cause ?

3 Answers  

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