star delta connection used in reduce the starting current
at 3 times . how its reduce the current please explian .
- 7 Answers
- 25728 Views
- HP, I also Faced
- E-Mail Answers
Answer Posted / hitendra
when motor connect in star connection, motor have high
voltage and reduced line current at starting time. becoz
motor secondery side shorted, and motor torque proponal to
voltage.and motor will start in safe mode.after get the 70
percent speed motor run with permissible voltage and current.
| Is This Answer Correct ? | 18 Yes | 38 No |
Post New Answer View All Answers
How do we calculate the Out put voltage of generator, after the excitation is being given?
ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
Electrical 'C' license full abbreviation , and full form
What is routh hurwitz stability criterion?
how do you choose the cable size as per amps rating & the voltage drop for the same.
DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?
HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER
What is the different types of cable & current capacity of cable
Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.
What are the types of transformers according to the arrangement of iron cores?
What is meant by impedance? difference between high & low impedance ?
what is LSR?
why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)
The synchronous machine excitation system explain
