SPECTRAL-OSCILLATING METHOD FOR IMPREGNATION OF END WINDING INSULATION OF ROTATING ELECTRIC MACHINES AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC H02K15/12 

FIELD: electricity.

SUBSTANCE: spectral-oscillating method for impregnation of the end winding insulation of rotating electric machines consists of three successive steps: 1) moisture removal by infrared (IR) heating of the end winding insulation before impregnation at the maximum allowable temperature for this class of insulation; 2) application of impregnating mixture at the end windings by automatic high-pressure sprayers; 3) transportation of the impregnating mixture into the depth of the end winding insulation by short-wave and medium-wave pulse ceramic converters of IR radiation. At that moisture removal from the end winding insulation before impregnation and transportation of the impregnating mixture into the depth of the end winding insulation is performed in spectral-oscillating modes of energy supply with cyclic alternation of short-wave and medium-wave IR radiation.

EFFECT: multiple increase in quality of impregnation process with simultaneous reduction of impregnation time in 7-10 times and provision 2- or 3-time effect of energy saving.

2 cl, 2 dwg