why a three phase induction motor cannot run at synchronous
speed ?
Answer Posted / deviprasad panda
When relative speed is zero then emf is not induced (emf=0) so current is zero...so lorentz law is not applicable....so frequency is zero ....so torque is zero....then motor is stop .....
Thats why induction motor not achieve synchronous speed
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?
What is the ratio of true power to apparent power in an ac circuit?
what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?
what is dry and wet frequency withstand voltage? why & where it is used??
pls tell us AC plant are how do work and parts name with picture
Difference between earthing & grounding.?
Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?
there are cam operated switches - why we call cam operated , What is cam ?
what is destructive and non-destructive testing of welding
Can u tell me design of switch yard
when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com
Differentiate between magnetic field and magnetic flux?
how to flameproof electrical motor on the shaft?
What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?
How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?