What is the difference between a single phase motor and a two-phase machine?
Motor has single-phase ac motor and three-phase motor. I haven't heard of a two-phase machine. Are you asking for a positive reverse motor? Three phases are phase modulation. Any two phases are exchanged. C, R, S.
Typically, the single phase motor is an electric motor, commonly used in small devices that start torque, such as electric fans and other small household appliances. In this motor, a small single-stage rotating hidden copper coil generates a rotating magnetic field. Each pole is surrounded by copper wire or copper bands; In order to prevent the current in the coil change (lenz's law) can produce induced current in the copper strip, so that every cycle maximum field strength across the surface, to produce a large enough lower rotating magnetic field to drive the rotor and the load on it. As the rotor increases its torque to the maximum, the field of the original (fixed rotation) will rotate as the rotor turns. These motors are hard to reverse unless the internal structure changes.
You mean should be the difference between the single-phase motor and three-phase motor, the difference between them is to use the power supply is different, single-phase motor using household electricity, three-phase industrial three-phase electric motor.
Single-phase motor is to use the 220 power supply, three-phase motor is to use the three phase line of power supply, no dual phase motor, only electric welding machine is to use two phase 380 v electricity
