Answer / rishad

In a star connection Line Current is Equal to Phase Current. i.e.

Line Current = Phase Current

IL = IPH

Where as in delta line current= 1.732 phase current

Answer / amar

In star, resistance across two terminal become three times as compare to delta.

Answer / anand yadav

The motor starting current can be reduced by following methods;
1. Start the motor without load.
if not possible
2. Use auto transformer starter
or
3. Use soft starter

Answer / k.prakashchandra

The motors are usually designed to run in delta connection i.e. each of the three windings to take line voltage . When you start in star connection , each winding is subjected to phase voltage , Hence the starting current will be less .

What are documents to be required for export of the material?

1 Answers   Siemens,

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what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

0 Answers  

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what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

0 Answers  

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Why strting torqe high in inducation motor?

0 Answers  

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How to calculate the cable size in sq. mm. when the load is given in KW?

3 Answers  

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What is trickle charging system?

2 Answers   Absotherm,

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why we measure output of transformer in kva?

1 Answers  

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1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 Answers  

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Why? We r used 50sq. mm. And above size cable in 3.5 core and below size are used in 4core

2 Answers  

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Why Earth pits are inter connected

8 Answers   Airtel, Taj Group,

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WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

3 Answers   Birla, Reliance,

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for a 33/11kv transformer, after step down what happens to the balance 22kv.

2 Answers  

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