直流機延命化のための電機子巻線再含浸基礎特性および遠赤外線照射の効果について

抄録

Recently hundreds of large dc machines manufactured for steel rolling mills at the high growing period are on the verge of replacement due to insulation deterioration of their armature windings after more than thirty years of service operation. Insulation technologies for aged machine are different from those for new machine, including varnish impregnation technologies.
In this paper, experimental study of basic impregnation characteristics for aged dc machine to extend its life is described.
Experimental study of application of far infrared radiation for the process is also presented.