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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what is magnetizing current test in power transformer

0 Answers   ABB,

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why do we need transformers?

12 Answers  

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what is booster? and how it is connected in a circuit?

0 Answers   APTransco,

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anti pumping relay function

3 Answers   Hofincons,

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he compression ratio for a petrol engine generally lies between

0 Answers   Caterpillar,

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How can you measure battery AH?

1 Answers  

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WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

0 Answers   Adhunik,

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why we use mostly 3-phase but not 4-phase and 5-phase what is the difference between them

1 Answers  

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What is the difference between the relay and the circuit breaker?

0 Answers  

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how to determine the size of power cable according to load current

1 Answers   JSW,

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How much should be the specific gravity of a DG set battery Electrolyte.

2 Answers  

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