electric

The three phases--A, B, and C--consist of sine waves pi/3 radians (120 degrees) translated in phase from one another. Thus 3-phase current in the stator of an induction motor generates a set of magnetic fields that rotate in the stator. (The stator itself does not rotate; the fields do.) The rotor follows this rotation at a somewhat slower speed; thus a nominal 1800 rpm motor will have an actual rating around 1750 rpm. By switching two phases, the fields rotate in the opposite direction; i.e., A-B-C vs A-C-B; clockwise vs CCW. This is a layman's explanation--hope it helps.

In a three phase supply the phase rotation will have Clock wise and anti-clock wise.

The motor rotation changes by interchanging (Swapping) any two wires out of three wires.

J.N. Karamchetti, Hyderabad.

There is an article on 3-phase power transmission in Wikipedia.

I think you should go back and read a basic text book