i want to know about for what reason we are using star
delta starter? how it works? what are the advantages?

Answers were Sorted based on User's Feedback



i want to know about for what reason we are using star delta starter? how it works? what are the a..

Answer / prashant kaushik

Star Delta use for starting of motor as during starting
motor take high current so we can reduce it through using
star delta starter.

Is This Answer Correct ?    0 Yes 0 No

i want to know about for what reason we are using star delta starter? how it works? what are the a..

Answer / amit agrawal

star delta starter are used for controlling starting current. as we know, when we start any motor/pump then motor takes 6 times if rated current as there is no back emf ins tarting(speed zero).
If we apply star circuit then the voltage will be one third of delta circuit, in the same way current will be reduced.
This is the answer.
One more thing that all the HT(6.6KV) motors also be in star to control the starting current and to save the cost of insulation for both motor and connected cable.

Is This Answer Correct ?    0 Yes 0 No

i want to know about for what reason we are using star delta starter? how it works? what are the a..

Answer / kishor

starters are used for the purpose of to reduse the starting current...
in star-delta starter motor starts in star connection at this time motor voltage reduses than 1/root3...
there fore current is also reduse 1/root3...
and after some time motor is automatically convert to delta mode through timer....

Is This Answer Correct ?    0 Yes 0 No

i want to know about for what reason we are using star delta starter? how it works? what are the a..

Answer / prabhakar

Stard delta starters are to avoid accident it works with
contactors it save energy.

do you want to know what is star delta

the motor whih has dol connection will consum more current
and the motor which as star connection will consume less
corrent that is the reson we use motors and star delta
starters

Is This Answer Correct ?    0 Yes 8 No

Post New Answer

More Electrical Engineering Interview Questions

what is PDU in transformer?? which company manufacture??

0 Answers  


Can you explain about Restricited earth fault protection scheme

0 Answers   NCC,


Whta is WT in a transformer, specify its function.

4 Answers  


how the rotating magnetic fieldis produced in induction machines??? give the correct explanation.is there any mathematical expression for the same?

1 Answers  


What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

0 Answers  






if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

1 Answers  


Which transformer is suitable for 220/11 kV, 60 MVA, distribution , Y-Y or D-Y or Y-D, give comparison for the same.

3 Answers  


how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

0 Answers  


How to Calculate the current drain in the battery (1.4V) for the 2mins time period?

7 Answers  


what is basic difference betmeen normal & flame proof motor??

0 Answers   Dynamics,


Can we install and run MCCB suitable for 440v 3Phase 4wire system, on a 220V 3Phase 4Wire System.

3 Answers  


In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)