Answer / bosky babu

In 3 Phase transformer,If the core is in circular shape, a rotating magnetic field will builds up and it will tends to rotate the secondary winding, (same as in the induction motor)

So the core is in the shape of square or in rectangle.

Answer / himansu

if circular core is used then more lamination is needed...thus
cost factor is obtained....

what is the sweep commenly used 1200mm sweep and 600mmsweep please tell me breifly sweep

1 Answers   Khaitan,

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what are the materials used in HRC fuse

3 Answers   Bhel,

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In Transmission System if the potential difference at the two end of line are same then is the transmission of power will continue ? if yes then how.

1 Answers   IOCL,

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Who is reputed manufacturer of TNC switch for ACB in India ?

3 Answers  

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I have raw material for making Compact-Choke for flourscent lamp of 40 Watts. We are suppose to get 0.4 amps output at end. but we are getting 0.42 or 0.44 amps and above. We have done many testings in different but nothing worked out. Please suggest me how to get the correct output. We are using 1. core winding of 700 windings of aluminium 2. E-shape iron fillings and I-shape iron fillings to surround the winding.

6 Answers  

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What is thermal relay and how it is works in transformer please explain

2 Answers   Future Group,

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In parallel operation time both NGR’s close or not close if both close what will happen

0 Answers  

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why v/f ratio to maintain constant in speed control of induction motor?

3 Answers  

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Is it required to lay 2 runs of GI wires along with armoured cables from one power DB to another Power DB?

0 Answers  

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3,12,24,33,_ ,75,150 Find the missed number in this sequence

2 Answers   HCL,

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in pf lagging means current decrease by increasing voltage is correct or not ? reason ?

3 Answers  

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how to check regenerative load in drived motor

0 Answers   Hindustan Unilever Limited, NHPC,

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