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can three phase induction motor rotate with only 2 phases
connected

Answers were Sorted based on User's Feedback



can three phase induction motor rotate with only 2 phases connected..

Answer / prasanna

yes.we can run but performance will reduce

Is This Answer Correct ?    1 Yes 1 No

can three phase induction motor rotate with only 2 phases connected..

Answer / chow

YES

Is This Answer Correct ?    0 Yes 0 No

can three phase induction motor rotate with only 2 phases connected..

Answer / xv2ps

I also thought yes as above described.
However, we have some electric problems in our factory for
2-3 days with one phase screwing off.
I have signed to rewire over 15 motors.

Is This Answer Correct ?    0 Yes 0 No

can three phase induction motor rotate with only 2 phases connected..

Answer / imtiaz

yes but low efficiency and reduced torque.

Is This Answer Correct ?    0 Yes 0 No

can three phase induction motor rotate with only 2 phases connected..

Answer / vinay

YES........
USING CAPACITOR

Is This Answer Correct ?    2 Yes 2 No

can three phase induction motor rotate with only 2 phases connected..

Answer / deepak (d.p.)

it is really true that wid only 2 phase connected the motor
rotates but with reduced torque andlow efficiency.

Is This Answer Correct ?    0 Yes 0 No

can three phase induction motor rotate with only 2 phases connected..

Answer / sad

yes it can run by giving mechanical force to rotate the
shaft while starting....

Is This Answer Correct ?    0 Yes 0 No

can three phase induction motor rotate with only 2 phases connected..

Answer / murugadoss

Take the second phase supply and connect to the capacitor input (15mfd/hp) (make sure the existing phase only to connect across the NV coil). then connect the output of the capacitor to the third phase. start and check the motor is running in the right direction if not change the second phase connection ( capacitor input) to the first phase.
Select the capacitor rating correctly otherwise the motor winding takes overheat and finally it will burn.

Is This Answer Correct ?    0 Yes 0 No

can three phase induction motor rotate with only 2 phases connected..

Answer / ashok kumar

with 2 phase motor does take place of rotation but motor
should not be loaded .it will start or rotate with humming
sound.after get start the motor, we can load it, but only
with in a limit(which is much smaller then that is in normal
condition) if we loaded the motor with in limit (with in the
range of full load current)it will be continuous in rotation
but its torque will be reduced as well as speed and also
effected its efficiency.

Is This Answer Correct ?    0 Yes 1 No

can three phase induction motor rotate with only 2 phases connected..

Answer / niranajn

yes but with reduced loading

Is This Answer Correct ?    3 Yes 5 No

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