how the rotating magnetic fieldis produced in induction
machines???
give the correct explanation.is there any mathematical
expression for the same?
- 1 Answers
- 2373 Views
- I also Faced
- E-Mail Answers
Answer Posted / ahamad kutty
Talking about an induction motor when we supply a 3 phase
supply to the stator a magnetic flux is produced in the
stator winding which rotate at the speed of the incoming
supply frequency.Since there is a rotor with conductor bars
the rotating flux in the stator winding induce an emf in the
rotor conductor bars as per Faraday's law of induction and
this emf rotate at the same speed as that of stator.since
the rotor conductor bars are short circuited a current is
circulated in the rotor. Now as per Faraday's law of
interaction the current carrying conductor lying in a
magnetic field will experience a force and locked to the
stator moving flux and starts to rotate at the slip
frequency which is just enough to supply friction and other
no load losses of the motor.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
where rlc series ckt used?
What is time response of the control system?
how to measure the current by compact digital equipment with dislay which fit inside any equipment
What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer
I need bhel electrical test pattern & paper
How to assume answer to electrical questions
What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
How to calculate Number of Earthing Pits....???
PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM
why does connected a indutor with mnsformeretering core of current transformer ?
what is servo motor & how does it work.
What is superposition theorem?
why does rotor rotets?
how to remover corona effect and hysteresis losses from contactor
what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load
