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Stator
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==Motors== Depending on the configuration of a spinning electromotive device the stator may act as the ''field magnet'', interacting with the [[armature (electrical engineering)|armature]] to create motion, or it may act as the ''armature'', receiving its influence from moving field coils on the rotor. The first [[direct current|DC]] generators (known as [[dynamo]]s) and [[Electric motor#Wound field DC motor|DC motors]] put the field coils on the stator, and the power generation or motive reaction coils on the rotor. This is necessary because a continuously moving power switch known as the [[Commutator (electric)|commutator]] is needed to keep the field correctly aligned across the spinning rotor. The commutator must become larger and more robust as the current increases. [[File:Stator winding at WPS.JPG|thumb|left|Stator winding of a generator at a [[Hydroelectricity|hydroelectric power station]].]] The stator of these devices may be either a permanent [[magnet]] or an [[electromagnet]]. An [[alternating current|AC]] [[alternator]] produces power across multiple high-current power generation coils connected in parallel, eliminating the commutator. [[File:Stator of a 3-phase induction motor.jpg|alt=Stator of a 3-phase induction motor|thumb|Stator of a 3-phase induction motor]]
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