早期的水轮发电机定子线棒槽内固定,一般都采用硬结构方式,即在上层线棒与平槽楔之间垫入半导体环氧玻璃布板和绝缘垫条(见图1)。这种结构虽然施工方法简单,但施工时的劳动强度很大,并且尽管这种结构的定子线槽内的垫条及槽楔的热塑性较小,在长期运行中也会由于温度的影响产生收缩,致使线棒的固定发生松动,威胁发电机的安全运行。我厂 Earlier hydro-generator stator bar slot fixed, the general use of hard structure, that is, between the upper rods and flat wedges embedded semiconductor epoxy glass cloth panels and insulation pads (see Figure 1). Although this method has a simple construction method, the labor intensity during construction is large, and although the thermoplasticity of the beads and the wedges in the stator slot of this structure is small, shrinkage also occurs due to temperature during long-term operation , Resulting in loose wire rod loosening, threatening the safe operation of the generator. my factory