INSULATED COIL OF STATOR IN HIGH-PRESSURE ROTATING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an insulation coil with good cooling characteristics for an entire impregnation method, by improving its heat conductivity. SOLUTION: An insulating coil 8a at an end part includes an insulating protective layer 9a. The protective layer 9a is made of non-woven fabric tape made of alumina-silicate ceramic fabric tape or plain weave glass fabric tape. The coil with the fabric tape wound around is an impregnated in a body with a resin impregnation material, made up of epoxy resin including 10wt.% crystal silica of grain size of 10μm and acid anhydride hardening material.