Answer / tj

the requirement for the excitation is of constant pole
electromagnet not pulsating pole em, as this only can lead
to pulsating emf on armature.

Answer / manikumar agcet

If excitation is dc then it is
easy to vary output voltage&
powerfactor.

2 electric bulbs of 100w,200V are put in series & the combination of each bulb is supplied to 100 V . the power consumption of each bulb will be????????

4 Answers  

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What is the difference between ground and neutral ?

2 Answers   TCS,

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which connection is there in a rotor of the motor

2 Answers   All Trades Electrical, HAL,

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What is the difference between Static and servo controlled voltage stablizer?

0 Answers   Voltamp,

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what is balanced network and unbalanced network

1 Answers   Nalco,

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why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 Answers  

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A cotter joint is generally used to transmit

0 Answers   Caterpillar,

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wat do knw aboot circuit breakers ?

9 Answers   IOCL,

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An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.

2 Answers  

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why we used servo motor insted of inducation motor?

1 Answers  

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How good are you in resolving the commercial issues to Employer's advantage?

0 Answers  

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On what principle electric motor works?

0 Answers  

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