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In a three phase motor direction of rotation of the motor can be reversed by changing _ of the three phases?

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Question added by vinod Bagwale
Date Posted: 2016/08/29
Anoop Methil Premraj
by Anoop Methil Premraj , Facilities engineer , BK Gulf Facilities Management LLC

The windings in a 3 phase motor, when activated by a 3 phase supply produce a rotating magnetic field in the rotor area of the motor. Swapping phase A with phase B re-orders the fluxes so that the flux rotates in the opposite direction. Swapping B with C does exactly the same thing as does swapping A with C. Think of it like a triangle with corners called A, B and C. If you swap any two corners and follow the points A, B and C you'll go in an opposite direction. Swap two more corners and you're back to the original rotation

ABDULLAH TAJ
by ABDULLAH TAJ , Senior Electrical/CP QA/QC Engineer (NACE CP2) , NESMA & Partners

Just interchange of any 2 Phase by manually or automatic control.

Naseer Muhammad
by Naseer Muhammad , one year trainee , malakand3 power complex

by changing any of two phases with each other

AJAY KUMAR CHANASSERY
by AJAY KUMAR CHANASSERY , Senior tech , SWIBER OFFSHORE CONSTRUCTIONS

swap any two phase connections of motor.

Muhammad Imran Imran
by Muhammad Imran Imran , electrical enginer , manahil middle east trade & cont..L.L.c

yes just by change two phases 

sooraj govindan
by sooraj govindan , assistant engineer , kerala state electricity board ltd

by changing the phases the rotation of the motor can be reversed, since the rotating magnetic field is reversed

Chethana Y M
by Chethana Y M , Lecturer , Ashoka Polytechnic

Just interchange the phases RYB to YBR

Note: Applicable for only Induction motor 

Muhammad Ayaz
by Muhammad Ayaz , Multi Skill Technician , Majid Al Futtaim

The three phases applied to the motor produces the rotating Magnetic field which tends to rotate the rotor of motor . if we swap only two phases the rotation of Magnetic field will be in reverse direction in result the rotor of the motor also change the rotation direction .

Asaad Makhalfih
by Asaad Makhalfih , Develoeper and researcher , TUD ((Technische Universität Dresden)

By changing any of two phases, so that it the rotating magnetic field is reversed to result in reverse of the rotation direction

Mahmoud Nawwar
by Mahmoud Nawwar , site engineer , GECO

the order of the three phases

Mohammed Mohiuddin Ahmed
by Mohammed Mohiuddin Ahmed , Testing and Commissioning Engineer , Kumar Engineers and consultants pvt ltd

by changing its phase sequence ( or reversing its phase sequence) 

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