why is it that the HT motors & motors having very low kW
rating(<1kW) have windings connected in STAR, whereas the
motors having in between kW ratings have DELTA connected
windings??
Answer Posted / saurabh
During Design it self it is take in consideration
As Power = Torque x Angular Velocity(RPM)
So for same RPM(say 1500 rpm), for Same Input Voltage
1) In star connection Torque will be less hence Power
output will b less
2) In Delta Connection Toruqe will be More hence Power
output will b more
as far as HT motors are concern, in order to limit inrush
current star connection could b given.
| Is This Answer Correct ? | 6 Yes | 3 No |
Post New Answer View All Answers
Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more
define digital electronic
hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?
What information we need to prepare relay coordination chart
can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?
what is the difference between the characteristics of two different phase bushing of any transformer
Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.
What type of core material is used for metering C.T and protection C.T???
is the value of inductance depends upon the evalue of thitha in doubly excited machine?
how is positive, negative, zero sequence is happen.. how is effect on 3 phase system
Why in ESP Positive earthed
List some examples of renewable energy?
Which is the oldest hydropower plant in india?
what is difference between 5A and 100A CT constructional wise and operation?
How do apply electrical 'c'license......pls advice