Stator of three phase induction motor creates Rotating
Magnetic field.But why not Transformer?
Answers were Sorted based on User's Feedback
Answer / alshaikh
Actually, they have the same principle in the transformer there is no electrical connection between the primary and the secondary (ordinary transformer) and also, in the motor the is no connection between the stator and the motor they depend on the travelling of the magnetic field . In secondary of the transformer is stationary but the rotor is free and it get rotating force magnetic field coming through the air gap
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sethu
This transformer working principle is mutual induction. but motor is self induction or fleming's left hand rule. so this is different to both element
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / meetkumar b. patel
in induction motor the placement of winding is so special
and when we give 3 phase voltage with 120 phase difference
in the winding we don't get any rotating magnetic field but
we get 180 direction field for each winding and when we
imagine resultant of this whole three winding we get the
rotating magnetic field
in transformer the placement of winding is not as induction
motor it just have to convert voltages into high or
low............
so both have three phase winding but just the placement and
connection is differ from each other that's y in induction
motor there is a rotating magnetic field and transformer
don't have
Is This Answer Correct ? | 7 Yes | 8 No |
Answer / s.suba
In Induction motor, windings are displaced by 120 degree in
space and phase. That is why Induction Motor creates
rotating magnetic field.
Is This Answer Correct ? | 0 Yes | 1 No |
Answer / suba
In induction machine the windings are displace by 120 degree
in both phase and space. that is why Induction Motor is rotating
Is This Answer Correct ? | 0 Yes | 2 No |
Answer / pugezhenthi.p
In transformer we provide the path [steel] for the
electromagnetic flux. So there is no interaction b/w the
flux. But in Induction Motor there is no separate path for
the magnetic flux. All the three phase fluxes are spread out
to the air gap, at the time only interaction b/w the flues
are possible. The interaction gives total resultant flux,
which is constant magnitude throughout the whole cycle, but
the axis of resultant flux is changes with respect to the
whole cycle. So we call this one as a Rotating Magnetic
Field[RMF].
Is This Answer Correct ? | 2 Yes | 6 No |
Answer / rahul shewale
in stator of a 3 phase im windige are placed 120 degree
phase displacements from each othre.each phase produces its
own flux. these fluxes ara not having low reluctance
path.the resultant oo these three fluxes is a rotating
vector.so the flux is called rotating magnrtic flux
in transformer there is low reluctance
path so flux is not rotating
Is This Answer Correct ? | 0 Yes | 4 No |
Answer / manoranjan
Because in induction motor there is an air gap whieh makes
the stator flux to rotate in the space but in transformers
rotating flux is not possible since the core act as a low
reluctance path and flux takes that path.
Is This Answer Correct ? | 0 Yes | 4 No |
Answer / maheswaran
we know that,in 3 phase every poles has all the three
windings sequentially.. so that in air gap we feel the RMF..
Is This Answer Correct ? | 3 Yes | 14 No |
Answer / ashokareddy
Because in induction motor there is an air gap whieh makes
the stator flux to rotate in the space but in transformers
rotating flux is not possible since the core act as a low
reluctance path and flux takes that path.
Is This Answer Correct ? | 6 Yes | 21 No |
distribution is maximum done by a)radial b)network c) parallel d)b & c
What do you mean by per capita requirement of electrical energy in india
what is the different between bus section and bus coupler
For Bus duct hi pot test, where we want to connect the return and ground leads?
what is meaning of Power factor?????????
cany anyone suggest electrical wesites for providing study materials?
what is the use of capacitor bands?
what type of transformer used in soft ware parks its distribution or power transformer. like 1800 kva
How to decide the fuse ratings for potential transformer
can i connect the two phases of scott connected transformer,if not why?
Is this possible to synchronize the two different ratings of dg
why we use choke in tubelights nad other lighting fixer