What is the stator and how does the stator work?

How does the stator work? Stator in electric motor

Depending on the shape and construction of an electric motor, the stator can act as a magnet, acting on the rotor to create motion, or it can act as an armature, receiving its influence from the magnet. switch the field coil on the rotor. The first DC generator and DC motor place the field windings on the stator, and the power generation or motor reactance coils on the rotor.

This is necessary because a continuously moving power switch called a commutator is needed to keep the fields matching correctly across the rotating propeller. The commutator must become bigger and stronger as the current increases.

The stator of these devices can be a magnet or an electromagnet. Where the stator is an electromagnet, the coils that energize it are called the coils or 'field windings.

The coils can be iron or aluminum cores. To minimize damage in the motor, manufacturers always use copper as the carry material in the windings. Aluminum, because of its lower conductivity, can be an alternative material in fractional horsepower engines, especially when the engine is used for very short periods of time. Learn more: Stator winding on Magnetic Generator 

An AC generator can produce power across multiple high current coils connected in parallel, eliminating the need for switches. Placing the field coil on the rotor allows for an inexpensive slip ring mechanism to transfer high voltage, low power current to alternating field coils. It consists of a steel frame surrounding a hollow core cylinder. The laminations are reduced hysteresis and loss eddy currents.

Learn more: Introduction of asynchronous generator

Conclude

"Stator" means "stationary" or "only the stationary part", the standing, non-moving part of a rotating system, is the reverse of the rotor. The stator can be found in generators, electric motors, sirens or bio-rotors.

Related: 

• A Permanent Magnetic Brushless Generator with Magnetic Circuit Control
• What Determines the Rotating Speed of a Motor?