working principle of induction motor is similar to transformer. but what makes

working principle of induction motor is similar to
transformer. but what makes it to rotate? then why the
transformer doesnt?

Question Posted / sendhur_m19

4 Answers
12229 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

working principle of induction motor is similar to transformer. but what makes it to rotate? then ..

Answer / princealekota

In induction motor the field is developed in rotational
direction i.e. since tha motor is circular in shape the
field also developed in rotational direction( design is
like that ). So the rotor follows the magnetic field and
rotation occurs.

But, in transformer there is no circular field is
developed. induction occurs from primary to secondary. so
no rotation takes place in transformer.

i dont know u got or not :P

simply speaking ..... in motor the magnets are placed which
forms a circle (stator).... so field also produces in
circular direction ... rotor follows the path and
rotates.....

in tranformer this not happend because field is not
circular here.

Is This Answer Correct ?

6 Yes

5 No

working principle of induction motor is similar to transformer. but what makes it to rotate? then ..

Answer / raj anthony

the displacement angle between the coils (windings) are
different both in tranfmr and motor to produce required
torque the displacement angle should be 360/n n>no of phases
betwn the windgns

Is This Answer Correct ?

1 Yes

0 No

working principle of induction motor is similar to transformer. but what makes it to rotate? then ..

Answer / rakesh kumar

a transformer doesnt have a concentic winding so a 3 phase
supply in a transformer doesnt produce a rotating magnetic
field , however the 3 phase windings in a induction motor
develop a rotating magnetic field and hnce a rotational
torque is produced in an induction motor .

Is This Answer Correct ?

1 Yes

1 No

working principle of induction motor is similar to transformer. but what makes it to rotate? then ..

Answer / vishw

IN AN INDUCTION MOTOR THERE IS SLIP BETWEEN STATOR AND THE ROTOR DUE TO WHICH A TORQUE IS DEVELOPED (DUE TO ROTATING FLUX) WHICH IS RESPONSIBLE FOR THE ROTATION, THERE IS NO SUCH SLIP IN TRANSFORMER BECAUSE OF WHICH THERE IS NO ROTATION..

Is This Answer Correct ?

3 Yes

4 No

Post New Answer

More Electrical Engineering Interview Questions

What is maximum rating of transformer ?

2 Answers

what is power factor ? why is it so important?

2 Answers Telco,

why the generator will take 8 to 12 hours to start after it got interrupted due to technical problems in case of power plants.

1 Answers NTPC,

how brushless dc motor is operating ?

4 Answers

What is the main purpose of relay?

1 Answers

explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

0 Answers

what is the load amp for 1 HP 3 phase Motor ?

15 Answers

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

0 Answers

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

0 Answers

ht side line to earth voltage

0 Answers JLL,

the process cynide is used for?

2 Answers MAHINDRA,

What is Meant by Load factor in Power plant?

2 Answers ABB, Electrical,

For more Electrical Engineering Interview Questions Click Here