what is the working principle of Brushed alternator ? without exictation how we can give dc supply to rotor ?

1 Answers  

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technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

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In case you don't have coal and salt for earthing, how can you achieve good temporary earthing?

1 Answers   Focus Energy, NHPC, ONGC,

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what is creep of energy meter?

2 Answers   HNG,

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Derive the inductance of a coil in terms of its physical factors.

1 Answers  

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when a pure dc signal is sent through a moving iron meter, what will it read?? dc or rms?? when a variable dc signal is sent through a moving iron meter, what will it read?? dc or rms??

1 Answers   GATE,

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what is meant by Is limiter?what is the use of current limiters in electrical ditribution network?

2 Answers  

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when 40 watts and 60 watts bulb is connected in series, which bulb glows brightly ?

5 Answers  

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Can we calculate the P.F if we know the only load on alternator .

1 Answers   Medha, Medha Servo,

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What is contract demand in solar system?

0 Answers  

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When do you use a VFD motor?

1 Answers  

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how much Amp we can put in 1200kva generator?

11 Answers   MacLellan,

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