Definition
A type of stator used in some AC generators in which the field windings are wound around distinct, outward-projecting iron pole pieces rather than embedded in slots around a smooth cylindrical core. Each pole stands out as a separate magnetic structure, producing a clearly defined magnetic field at fixed positions around the stator.
Plain English
A stator built with separate, sticking-out poles — each one wrapped with its own coil of wire — instead of having the wires laid into a smooth round core. The poles look like fingers pointing inward (or outward), and each one becomes its own magnet when current flows.
Context Anchor
Seen in aircraft electrical system and engine-driven generator or alternator discussions, especially when learning how electrical power is produced.
Derivation
Salient comes from the Latin saliens, meaning leaping or standing out. The poles stand out from the stator body, which is exactly what gives this design its name. Stator comes from Latin stare, to stand — it is the stationary part of the machine, as opposed to the rotor, which rotates.
Why Pilots Care
Knowing the construction type helps a technician understand how the generator produces its magnetic field, where to inspect for winding damage, and why certain failure modes (like a shorted pole coil) affect output the way they do.
Analogy
Picture raised teeth around the inside of a ring, facing a spinning center piece. The “teeth” are the salient poles, and the ring that does not move is the stator.
Intuition Check
Do not read salient here as just “important.” In this term, salient means physically projecting or standing out from the surrounding metal.
Example Sentence 1
During the inspection, the technician checked each coil on the salient pole stator for signs of overheating or insulation breakdown.
Example Sentence 2
Salient pole stators are used in certain aircraft generators to produce stable power at lower engine speeds.