Answer / krishna

Transformer works on the principle magnetic induction.

but transformer having primary and secondary
windings ...which are static ..then how rotation is
possible in transformer????/

coming to induction motor it having primary and secondary
windings ....one of which is a static winding and other is
rotatory winding.
hence rotation is possible due to magnetic action produced
by the mutual induction principle as in tranformer...

Answer / atul

In transformer both primary & secondary wdg are wound on same core material so there is no need to cutting the flux as it link with secondary. eg mutual induction.
But in motor both wdg are wound seprately so to produce induce e.m.f. there is need to cut the flux so the rotor rotate to cut the flux .eg dynamic induction.
Therefore motor rotate due to dynamic induction & trancformer not rotate due to mutual induction as both are induction principal.

Answer / t eswara rao

ROTATING MAGNETIC FIELD IS PRODUCED IN MOTOR DUE TO ITS
DISTRIBUTED WINDING AND HENCE MOTOR ROTATES.
THERE IS NO ROTATING MAGNETIC FIELD PRODUCED IN TRANSFORMER
AND HENCE TRANSFORMER DOES NOT ROTATE.

Answer / vikash kumar

in induction motor
resultant flux =1.5*(maximum flux) -(1)
angle=0.5pi-wt -(2)
from above equation (2) angle is dependent on time hence
indution machine rotate but in transformer angle is
independent of time not rotate tranformer

Answer / vijay

Even though both works on the same mutual induction
principle,but transformer is a static m/c where as
induction motor is rotating m/c because Indution motors
having rotating magnetic field.

But in the case of T/F, magnetic field generated is satatic
no change in frequency of potential applied, to T/F.

so there is no chance of rotation of T/F.

Answer / suresh apgenco

For electro magnetic induction, either field should rotate
or conductor should rotate. if u give 3 phase supply to
motor a stationary rotating magnetic field will set up. as
the field is stationary, rotor starts rotating in motor to
get magnetic induction. butin case of transformer, field is
rotating field will setup but not stationary rotating
magnetic field. as the field is rotating, conductor should
be stationary to get magnetic induction.

Answer / dindo

it simply because the motor has rotating core.It rotates
only due to the attraction n repulsion of the induced
magnets around in the stator while the transformer have
stationary core only that provide stable and variable supply
through electromagnets.

Answer / ag

there is no mechanical bearing to support the induction
effect on the transformer secondary winding. So, only
potential(volts) is transferred to secondary for use in
another circuit.

While motor is enable to rotate while being pushed by the
induction effect of the primary because of the mechanical
bearing.

transformer is electrical to electrical
motor is electrical to mechanical

how we can calculate LT side current of transformer

2 Answers   L&T,

What is the difference between Droop vs Isoch Control?

0 Answers  

How to calculate multiplying factor of dc energy meter

0 Answers  

three phase 180kva diesel generator can take how much load in amp and what is formula to get this?

13 Answers   lenovo,

At what speed an electric car can run with 2 HP motor of weighing 400 kg?

0 Answers  

What is the diffrence between ofline ups and online ups?

3 Answers   Intel,

Define norton equivalent circuit?

0 Answers  

In synchronous generators field is rotor and armature is stator.Can we take the output at the rotor in case of synchronous generator by the dc excitation on the stator?

2 Answers  

How does a clampmeter measures dc current

1 Answers  

Y phase's (RYB) r only 3,not 4 or 5?plz answered in breif?

1 Answers  

ELCBs are installed for protecting humans from AC leakage current.Is there a device which protects humans from DC Leakage current??e.g.leakage from batteries...If not,then why so???

1 Answers  

i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 Answers