Answer / mak

the secondrary ll produce a demagnetising flux which makes back mmf..so more current is drawn in primary side to neutralise it..

Answer / akash

all the time core losses same .but copper losses change due to ambient temp.on full load efficiency maximum.

what is difference between MCB & MCCB

1 Answers  

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what are the compensations considered while designing a transmmision line.

1 Answers  

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IF 5000amp current on LT 440V. then how much it will draw amp on HT 11KV side

10 Answers  

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what is gapless metal oxide techniques?

1 Answers  

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i(1)= j0.5 p.u., i(2)= -j0.5 p.u., i(0) =j1 p.u. What kind of fault it is-- a)l-l ,b)l-l-g, c)l-l-l-g, d)l-g.

2 Answers   Areva,

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which type of material is used for making motor encloser

3 Answers  

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why voltage will come different in phase?

3 Answers   HP, Vissa,

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WE HAVE A PROBLEM THAT THE MAIN DRIVE OF OUR CEMENT MILL HAS AN EARTHING PROBLEM?TWO OF STATOR WINDINGS INSULATION HAS BEEN COLLAPSED DUE TO AGING PROBLEM.THE PHASES HAVE BEEN BYPASSED AND NOW THE LOAD HAS BEEN INCREASED.WE CAN'T REPLACE THE MOTOR.KINDLY HELP ME BY GIVING SUGGESTION THAT HOW TO MAINTAIN THE STARTING TORQUE AND CURRENT FOR HIGH LOADS.

1 Answers   ACC,

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where we use stardelta starter and dol starter

4 Answers   HCL,

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what is harmonics?

1 Answers   powercom,

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How power is transferred from one winding to another in an auto-transformer? A) electrically B) magnetically C( both a & b D) neither of above

3 Answers   ISRO,

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what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 Answers  

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