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When three phase supply is given to the three phase stator winding of the induction motor,a rotating magnetic field is developed around the stator which rotates at synchronous speed.This rotating magnetic field passes through the air gap and cuts the rotor conductors which were stationary.Due to the relative speed between the stationary rotor conductors and the rotating magnetic field,an emf is induced in the rotor conductors.As the rotor conductors are short circuited, current starts flowing through it.And as these current carrying rotor conductors are placed in the magnetic field produced by the stator, they experiences a mechanical force i.e. torque which moves the rotor in the same direction as that of the rotating magnetic field.
the induction motor can't run at the synchronous speed because at synchronous speed the induction motor can not develop any torque to move the rotor from its stationary position.
What else can I help you with?
What happens when a phase gets disconnected in a 3 phase four wire and 3 phase three wire system?
Can u imagine a merrygoround with so many kids on it that three kids can hardly turn it? now imagine that same merrygoround with only two kids trying to turn it. Same thing with one line missing. it will sit there and burn until a breaker goes or the other kids burn out.If you have a motor running it will run until it is stopped but it wont start again.:motors;called single phasing,, the other 2 phases ampers increase and trip the motor overloads.. or blow fuses
What are the 3 quantities that may be considered as parameters in order to change the speed of a dc motor?
From my understanding of electronics: The input voltage -- generally the higher the voltage, the faster the motor will go. Of course, this will shorten the life of your motor. The motor itself -- Different motors are designed for different applications (i.e. high torque, high speed, etc.) Gearbox (a.k.a. transmission) -- Can increase the speed of a motor with a sacrifice of torque or vice versa.
Should you be concerned that your 3 year old has over developed fine motor skills and underdeveloped gross motor skills?
Not particularly; all children develop things at different rates. However, if you want him to start building his gross motor skills more, get him to play often with things like throwing or passing a ball.
What are the steps in inductive method?
The inductive method involves gathering data, observing patterns, and formulating a general hypothesis or theory based on those observations. Then, this hypothesis is tested with further observations or experiments to see if it applies to new situations. Finally, conclusions are drawn based on the evidence collected during the experimentation phase.
What are the advantages and disadvantages of elliptic filter?
advantages: 1. It has a sharp cut-off and narrow transition width. 2. The frequency response specifications can be satisfied by a lower order filter. 3. Due to presence of zeroes unlike butterworth, chebyshev, it can effectively notch out frequencies. disadvantages: 1. It has ripples both in passband as well as stopband. 2. It has a highly non-linear phase response in passband especially near band-edge. 3. Design and implementation is complicated.
Is 3 phase induction motor is self starting?
Yes, that is one of the major advantages of a three-phase induction motor.
Why each phase no load power factor of 3 phase induction motor is not same?
That indicates a fault in the induction motor.
Disadvantages of 3 phase induction motor?
One of the disadvantages of the 3 phase induction motor is that it requires a three wire supply. The other disadvantage is that the 3 phase induction motors have poor starting torque and high have in the rush currents.
How 3 phase induction motor works?
no one
Why three phase induction motor has uniform torque?
The 3-phase currents in the 3 coils of an induction motor will produce a steady rotating magnetic field.
What are the various methods of starting a 3 phase induction motor?
by motor starter
Load test on 3 phase induction motor?
When you do a load test on a 3-phase induction motor you are checking the power factor, viz slip, and efficiency of the motor. You can test various loads with this test.
What type of motor used in agriculture water pump?
induction motor (3 phase)
How single-phase induction motor classified?
The single phase induction motors are made self starting by providing an additional flux by some additional means. Now depending upon these additional means the single phase induction motors are classified as: 1.Split phase induction motor. 2.Capacitor start inductor motor. 3.Capacitor start capacitor run induction motor. 4. Shaded pole induction motor.
What is the cable size for 1.5KW 3 phase induction motor?
Sir, what is the cable size for 1.5kw 3phase induction motor 400v?
What are the constructional features of a 3 phase induction motor?
stator,roto
How does the 3-phase induction motor acts like 2-phase induction motor if a phase is disconnected from supply?
yes the motor will run but will draw more current and the torque will be not constant means not smooth due to unbalanced current
