STATOR COIL OF A HIGH-VOLTAGE GENERATOR

摘要

STATOR COIL OF A HIGH-VOLTAGE GENERATOR The stator coil of a high-voltage generator comprises an electrical lead-in of conductive material, turns of conductive material coated with layers of turn -to-turn insulation with a screen layer. The electrical lead-in is fashioned as a tube. The stator coil of a high-voltage generator further comprises cooling pipes adjoining the turns and having side openings, and insulating members. Each insulating member consists of two parts made integral with each other. A portion of the first part, facing the coil turns, has two projections with holes communicating with the side openings in the cooling pipes. The insulating member is provided with passages communicated with spaces in the projections. The insulating members are arranged concentrically with the electrical lead-in tube, and each pair of said insulating members froms an insulating tube for the supply of cooling agent, made up of two parts. One part of the insulating tube presents a hollow cylinder with projections while its other part presents a truncated hollow cone. Each insulating tube for the supply of cooling agent is separated from a subsequent tube by several insulation layers serving a continuation of the corresponding layers of turn -to-turn insulation, with a screen layer presenting an uninterrupted continuation of the screen layer of the turn -to-turn insulation layers. The invention permits to provide direct cooling of coil turns of the stator coil of a high-voltage generator, reduce the overall size and improve the reliability thereof.