How to distinguish between DC motor and AC motor?
The difference between DC motor and AC motor is, of course, the different types of drive power, one is DC, one is communication.
As communication is easier to obtain and easier to carry, so most of the electric machines we use today are driven by AC motors.
AC motor is rotating to produce a rotating magnetic field formed by the stator voltage in the rotor should be on the. Its speed is generally fixed. But because of its simple structure and convenient power supply, it is widely used in various enterprises and families. Small household washing machine, vacuum cleaner, large to giant pumps, machine tools and so on, are the use of AC motor.
The stator of a direct current motor is a fixed magnetic field, and the direct current changes through the brush of the rotor to form a magnetic field around it, thereby rotating in the stator. In industrial enterprises, due to relatively reliable DC power supply, DC motor is generally used to require reliable operation of mechanical or mechanical spare security; and because the DC motor with variable speed input voltage can also change, so often need to control local DC motor are many, such as cars, electric locomotive and so on.
