Vahelduvvoolmootor

Vahelduvvoolmootor, more commonly known as an AC motor, is an electric motor that operates using an alternating current (AC) power supply. AC motors are widely used in a variety of applications due to their simplicity, reliability, and cost-effectiveness.

The fundamental principle behind the operation of an AC motor is the interaction between a magnetic field produced by the stator and the magnetic field generated in the rotor. The stator, the stationary part of the motor, contains windings that are supplied with AC power. This creates a rotating magnetic field. The rotor, the rotating part, can be either wound or contain permanent magnets. The interaction of these magnetic fields causes the rotor to turn, generating mechanical power.

There are two main types of AC motors: induction motors and synchronous motors. Induction motors are the most common type. In an induction motor, the rotating magnetic field of the stator induces a current in the rotor conductors, which in turn creates a magnetic field in the rotor. The rotor's magnetic field then tries to catch up with the stator's rotating magnetic field, causing it to spin. Synchronous motors, on the other hand, have rotors that are synchronized with the frequency of the AC supply. Their rotor speed is directly proportional to the frequency of the AC power and the number of poles in the motor.

AC motors are found in countless devices, from household appliances like refrigerators and washing machines to industrial machinery such as pumps, fans, and conveyor belts. Their versatility and efficiency make them a cornerstone of modern technology.