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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In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

8 Answers  

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what is the difference between energy efficient and high efficiency motors

2 Answers  

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There is 3phase power cable from 1 point to the other point which is 100m away. Two point equipped with power meter and recorded 1st point is 205kW while the 2nd is 202kW and each phase average carry 400amps. To calculate the resistance of the 3phase power cable, is the formula using will be P=I2R?

3 Answers  

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what is power ratio between star & delta connection of 3 phase induction motor

1 Answers  

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What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?

0 Answers   BFL,

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The transformer which is smallest in size is and how to calculate that? The options are 100 KVA, 50 Hz 100 KVa, 100 Hz 100 KVA, 25 Hz 50KVA, 25 HZ

4 Answers   Ranbaxy, Zee Laboratories,

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What is Wlak Test in Fire Alarm System????

2 Answers   Emerson,

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how give earthing conection to household equipment?

0 Answers  

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How a Universal motor works in Both A.C and D.C? What is the constructional difference with other single phase motors?

1 Answers  

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whether the battery is voltage source or current source?

2 Answers  

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what is reactive power ? what its role in transmission lines?

3 Answers   Thermax,

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