stator coil

machine part

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Last updated

July 14, 2026

Quick Summary

A stator coil is a component within an electric machine, such as an electric motor or generator. It is typically made of copper wire wound into a coil, often with many turns, and is electrically insulated. These coils are housed within slots in the stator's iron core.

The primary function of stator coils is to generate a magnetic field when an electric current flows through them. In induction motors, a set of three-phase stator windings creates a rotating magnetic field that drives the rotor. In synchronous generators, stator windings are designed to produce a sinusoidal voltage waveform as the rotor's magnetic field rotates. The construction of these coils, including the type of conductor and insulation, varies based on the machine's size and power requirements.12

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electric generator
Stator
…voltage is induced in the stator coil. At any instant, the magnitude of the voltage is proportional to the rate at which the magnetic field encircled by the coil is changing with time—i.e.,the rate at which the magnetic field is passing the two sides of the coil. The voltage will…
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…voltage is induced in the stator coil. At any instant, the magnitude of the voltage is proportional to the rate at which the magnetic field encircled by the coil is changing with time—i.e.,the rate at which the magnetic field is passing the two sides of the coil. The voltage will…
Read More