In case of a synchronous generator carbon brushes, some brushes expire before the others. Why is so? When all the brushes are installed at the same time, why don't thee expire at the same time?

1 Answers  

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in alternator how we can give power to rotor ? its power is AC or DC ?

5 Answers  

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What are books to be referred for KPTCL exam?

0 Answers  

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what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?

0 Answers   TNEB Tamil Nadu Electricity Board, Vestas,

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What is OLTC in a transformer, specify its fuction.

35 Answers   Bhel, Isgec, L&T,

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how to test the electrical panel.ht lt mcc pcc.

0 Answers   Ambience, Shivalik,

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how to decide the load on secondary of the tranformer

1 Answers   DLF,

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in power station what is the electrical circuit length of spacing between power transformer and lightning arrestors,for the voltage system of 230kv,110kv,33kv,22kv,11kv?

1 Answers  

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what is reactive power and active power

4 Answers  

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what is the function of compressor?

2 Answers  

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how we can varying the speed of dc motor ?

6 Answers  

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How single phase & 3 phase motor select rotating direction ie clockwise/anticlockwise

6 Answers   DRJ ARDE,

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