Liquid-cooled conductors for dynamoelectric machines

Claim 1

In a dynamoelectric machine, an arrangement for improved mechanical support of conductors of a liquid cooled stator comprising: a stator winding and a coolant system for circulating a liquid coolant therethrough; a plurality of winding conductors connected together to constitute said winding, each of said conductors comprising a plurality of strands, at least some of said strands being hollow to serve as coolant ducts; a header member on each end of each of said conductors and joined to said conductor with a liquid-tight joint, said header member providing an enclosed space communicating with said coolant ducts and having means for connecting said enclosed space to said coolant system; said strands of each of said conductors immediately adjacent to said header being supported in relation to each other by cured resinous material filling space between said strands; each of said conductors having a ground wall insulation comprising a wrapped insulating tape impregnated with a cured resinous material, said ground wall insulation terminating on each of said conductors at a location spaced from said header; a rigid insulating support member disposed over each of said conductors adjacent said header, said rigid insulating support member comprising a plurality of layers of insulating material, each of said layers providing substantially a full sleeve-like covering of said conductor from said header to said ground wall insulation, said rigid insulating support member being impregnated with a cured resinous material, and said layers of insulating material of said rigid insulating support member having extremities that are interleaved with layers of said tape of said ground wall insulation.