Answer / k.prakashchandra

To balance the currents to some extent

Answer / spb

depending upon the applications we use the delta & star connection....
for transmission delta to delta... for distribution purpose we use single phase supply for domestic loads so we can use delta to star..
if you want to get detailed answer please post your question clearly..

how external lighting design? please give examples?

0 Answers  

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What is minimum phase system?

0 Answers  

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How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?

0 Answers   Divis Laboratories,

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what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?

0 Answers   Aditya Birla,

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Shunt reactor is used in EHV Transmission line for..............?

2 Answers   NTPC,

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how to set the transformer differential relay

1 Answers   Divis Laboratories,

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1. If we apply dc supply to the primary winding of transformer it will be burnt out. similarly dc supply is given to field winding of syn. motor and armature winding of dc motor, they are safe. (Remember both windings inductive nature) what is the reason behind that?

2 Answers  

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Hi, what is the temp of bus bar.

1 Answers  

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What is the difference between emf, voltage drop and potential difference?

4 Answers  

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What is 2P*0.5 sqmm screened copper cable and what is the use of it..?

1 Answers  

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why scott connection is done why not two phases are directly picked at the output of 3 phase transformer??

1 Answers  

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I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

0 Answers  

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