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Key Stator / Armature Components
 Stator Construction
TECO-Westinghouse Motor Company stators are designed and built to provide exceptional performance and outstanding reliability. The main poles and commutating poles are all laminated to assure quick response to speed and load changes. Our full-length commutating poles lower the reactance voltage and compensating windings provide proper compensation for armature reaction. Stator end connection joints are TIG-welded together for maximum strength. Compensating winding straps are individually bolted at the centerline split to allow quick removal of the top half of the stator. All stator electrical conductors are made from copper.
 Armature Coils
Laminated, rectangular copper conductors are individually insulated and bonded together with separators. The formed, full coils are wrapped with ground wall insulation. A protective binding of tape then covers the complete coil. After winding, multiple coats of insulating resin are applied to create a smooth surface that resists rust, moisture, chemical contamination and heat.
 Superior Banding and Wedging
In a unique TECO-Westinghouse developed glass banding process, acrylic-treated glass tape is applied to the armature coil end-turns under controlled tension and temperature. This process creates solid, high-strength, pre-tensioned bands which restrict coil movement under the forces encountered in service. The TECO-Westinghouse armature wedge design prevents coil movement in the core and assures excellent coil heat transfer. Narrow, flush wedges allow unimpeded air flow along the air gap, and wedging eliminates the reduction of rotor iron heat dissipating surfaces that would normally be associated with core banding. |
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