what is principle of DC machines?

5 Answers   APTransco, NTPC, Wipro,

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A current of 2A flows for 10 hour through a 100 ohm resistor. The energy consumed by the resistor is:(a) 0.5 kWh(b) 4 kWh(c) 2 kWh(d) 0.02 kWh

3 Answers  

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how much Hp motor is required for water suction pump in home uses ?

1 Answers  

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What is the difference between a Vacuum Circuit Breaker and a Load Break Switch?

7 Answers  

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WHWT IS USE OF VACCUM CIRCUIT BREAKER

4 Answers  

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In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

0 Answers   Aegis,

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a wire in which bulb is connected there is two terminal when one terminal is connected to phase than why the value of current shock in nutral terminal is max. or large??

4 Answers  

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design of IGBT firing circuit for 11KV

0 Answers  

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11KW Delta motor is taking about 44Amps in star and goes upto 70Amps in delta and trips OFF. The rated current is 26Amps. Application is for the blower. The motor takes ( no load without coupling impller ) only 2.5A and 5Amps in star & delta starter test.Need to know why its taking high current.

10 Answers   Pfizer,

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what will happen when excitation of a synchronous machine is suddenly reduce to zero when it is running at full load..??

7 Answers  

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need of capacitor used in plant

3 Answers  

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What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

0 Answers  

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