MANUFACTURING PROCESS FOR FIELD COIL OF ELECTRICAL MACHINE ROTOR Russian patent published in 1995 - IPC

FIELD: electromechanical engineering. SUBSTANCE: coil turns are formed from copper strips wound on edge with skewed portions on external surface cooled while machine is running; turns are formed on mandrel, coated with epoxy-phenolic varnish; generating surfaces cooled while machine is running located between two top and two bottom turns are covered with antiadhesion fluoroplastic tape; turns are insulated over perimeter with glass fabric tape impregnated with epoxy-phenolic varnish; internal and external generating surfaces are formed to obtain size corresponding to that of complete coil, subjected to heat treatment, molded through height; turn-to-turn insulation is cut at root of skewed points and removed together with antiadhesion coating. EFFECT: facilitated procedure. 2 cl, 5 dwg