Answer / raman jain

The Alternator shows small voltage when running on rated
speed and without excitation. This is due to the remanent
magnetization of the core of Alternator. After new winding
and insulation, the remanent magnetization no longer exists
and that is why it does not shows any voltage.
After initial voltage built up it attains the remanent
magnetization again.

difference between ac and dc motor

1 Answers  

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A synchronous machines has higher capacity for (1) Leading power factor (2) Lagging power factor (3) Does not depend upon the power factor of machine (4) None of the above

2 Answers   JSW,

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How much load with stand the copper cable by sq mm apro..

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why we use negative feedback in control system.

2 Answers  

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how calculate gd2 of ht motors

0 Answers   Hindustan Copper Limited,

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although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

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when the Transmission and Distribution network where is the "feeder" lines are located? and why should be used in T&D network.....

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700KW 6.6KV slip ring induction motor to use VFD to control the speed

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how to calculate units consumption for a 12 hp motor /hr.

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why use in & out Diesel line in dg set.

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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 we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

0 Answers  

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