The development of new insulation wire used in stator winding of large generator

Heat degree 155 glass-polyester insulated wire and fused polyester and glass insu- lated wire are both new wires which are widely used as stator winding of large generator. Since melt polyester is used to replace lacquer partly or completely, they have better mechani- cal property. In this paper, the development of the two new insulation wires is introduced, and the physical and chemical changes of the glass - polyester insulated wire in the oven is al- so discussed.