SELECTIVE METHOD TO DRY MOIST OR IMPREGNATED INSULATION OF ANCHOR WINDINGS OF TRACTION ELECTRIC MACHINES WITH INFRARED RADIATION AND DEVICE FOR ITS REALISATION Russian patent published in 2014 - IPC H02K15/12 

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric engineering and electric machine building, in particular, to manufacturing and repair of electric machines, for instance, windings of traction electric machines (TEM) of locomotives and multiple-unit rolling stock. According to the proposed selective method for drying of moist and impregnated insulation, drying of insulation of windings in an evenly rotating anchor of TEM is carried out by long-wave pulse ceramic infrared (IR) emitters, arranged along the length of the active part of the anchor, and also at the side of its front part. The proposed device for realisation of this method consists of a stand (1) with an attached variable-frequency asynchronous electric drive (3) and a rack (2), on which long-wave pulse ceramic IR-emitters are installed. The TEM anchor is rotated, and simultaneously the moist or varnish-(compound-)impregnated insulation of the front and active parts of the anchor winding in the rotating TEM is heated to the temperature of 100 … 120° C with the help of the specified IR-radiators, which provides for drying of insulation.

EFFECT: technical result achieved when using the proposed invention consists in provision of even heating of windings insulation along the entire area of the anchor, which increases quality of drying of TEM anchor winding insulation with simultaneous reduction of power inputs and time for technological process of insulating drying.

4 cl, 2 dwg