Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

0 Answers  

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what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....

7 Answers  

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Draw a block diagramof Three UPS systems connected in Parallel mode?

0 Answers   HSL,

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Seamless tubes are made by?

5 Answers   Bhel,

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how to failure indution motor insulation & how to improve heat in motor insulation

0 Answers   BHL, EPIL, IFFCO, Micromax,

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define superposition theorem thevnin theorem ,norton theorom?

0 Answers  

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The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

0 Answers  

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what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R

0 Answers   NCC,

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Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm

0 Answers  

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why fuse amperes rating are specified ratings like 32amp & 64 amps?

2 Answers  

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what are the basic concept to design a out door Substation?

1 Answers  

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what is wave traps and why it is been used in switchyards?

1 Answers   NHPC,

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