Answer / shubham

At no load Synchronous Impedence of the alternator is
responsilble for creating angle difference. So it should be
zero lagging like inductor

Answer / chandan (k.i.e.t gzb)

Lagging

i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

0 Answers  

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What is Rough Balance Busbar Protection

1 Answers  

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what is the function of generator exciter

11 Answers   NTPC,

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Please brief me about number of pole in alternator.In single phase alternator coils are connected in star or series. How to calculate frequency for the same.

0 Answers  

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What is the name of the winding from which the supply is taken for load connections?

0 Answers  

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Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

0 Answers   Bhel,

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Transformer's core is made up of which material and why so?

10 Answers   ABB, NTPC,

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Earth Resistivity

2 Answers  

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why single phase induction motors are not self staring ? how can we start the 1-phase Induction motor ?

3 Answers   BDL,

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what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

0 Answers   Bosch,

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How to calculate mf when meter equipment and meter are connected

0 Answers  

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hi!!! i have a question that how the thermal test in winding temprature test is taken can anyone explain me in detail??? i will b very thankful!!!!

1 Answers  

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