PRELOADING SYSTEM FOR A CLAMP OF A STATOR END WINDING COIL

摘要

PURPOSE: A preloading system is provided to maintain a preload on the end winding coils of a stator of a dynamoelectric machine without failing due to the radial band weakening the spring. CONSTITUTION: A preload system for preloading a first coil end winding and a second coil end winding of a stator, comprising:a first coil support platform coupled to a periphery of the first coil; a clamping apparatus compressing the end winding coils and the first coil support platform; and a first preload apparatus between the clamping apparatus and the first coil support platform and not running circumferentially around the clamping apparatus, wherein the first preload apparatus comprises a pin block and a spring compressed between the clamping apparatus and the first coil support platform.