Why induction
motor can not be
operated at
synchronous
speed?? what
would happen if
it is operated
at synchronous
speed??
Answers were Sorted based on User's Feedback
Answer / dwivedi sandeepdhar
if ind. motor operate at synch. speed than there will be no
rate of change of flux and hence no induced emf hence no
torque.
Is This Answer Correct ? | 26 Yes | 3 No |
Answer / amit mohan bhatt
synchronous motor cant be operated on synchronous speed
becoz it if the motor will run on synchronous speed then
there will be no fluxx cut by the conductor of rotor as a
result of which there will be no induced emf in the rotor
nd there is no motion in the rotor , therefore the
synchronous motor will operated in synchronous speed
Is This Answer Correct ? | 23 Yes | 15 No |
Answer / jigneshkumar maheshwari
induction motor does not run at synchronous speed because
synchronous speed is a speed of rotating megnetig field ie
rotor runs at Ns the rmf & rotor conductor are comes in
parallel so no cuts the field so emf not produced thatswhy
induction motor does not run at Ns
Is This Answer Correct ? | 6 Yes | 1 No |
Answer / dileep kumar
emf induced in the rotor conductors is dynamically induced emfs.cndotion for dynamically induced emf is there z relative motion between flux and rotor conductors. if induction motor is rotating at shynchronous speed , then relative velocity is zero & no emf production & torque is proportional to the square of the induced voltage so no torque which can turn or twist the rotor is zefo thats why induction motor never rotate at synchronous speed
Is This Answer Correct ? | 8 Yes | 4 No |
Answer / pillay
induction motor CAN run at syn speed but due
to mechanical strain there is bound to be a
slip .The higher the slip higher the current
consumed thus it cannot be operated at a slip
higher than the fill load current.If the motor
is "driven"at no slip than there is no current
consumed that means there is no induced emf in
the rotor as Amit Mohan has said.That means
you are driving the motor instead of the motor
driving anything
nothing would happen to the motor, you are just
turning the motor at syn speed.
Is This Answer Correct ? | 4 Yes | 11 No |
What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?
how to calculate the change over time for star delta starter for different KW motor?
can any tell me how to do wiring connection in L&T 3ph 4wire E301 CT operated energy meter, what is P1,P2,P3,P0. M1,M2,M3, L1,L2,L3.
2 Answers Bhartiya International,
why earthing is not required on transformer prymary winding side ???
why Power transmssion voltages are as 11kV,33kV,66kV,220kV and so on only?
what is diffrential relay used in generator plz give brief explanation
definition of transponder?
How can calculate the rating of a servo stabilizer for given a specific load
to operate air conditioner of 1.5ton what power of generator is required
can transformer develop three phase poer from a single phase source?
What is power relay?
what is purpose of using neutral grounding transformer in generators??