新型防晕带在18kV电机VPI定子线棒上的应用

Application of Novel Anti-corona Tape in 18kV VPI Stator Bar

对全固化薄型HR-x系列防晕带与无溶剂浸渍漆的影响进行了分析,测试了防晕带的非线性参数,确定了适合高压电机定子线棒的防晕结构。分别采用线棒主绝缘和防晕结构一次VPI成型的工艺和线棒主绝缘VPI后进行防晕处理,然后固化成型的工艺,制备了试验线棒。应用结果表明:HR-x防晕带适用线棒主绝缘一次VPI成型工艺,防晕性能指标达到国内先进水平。

The effect of solid-state thin HR-x series of anti-corona tape on the solventless impregnating varnish was tested by infrared analysis, and the nonlinear parameters of the tapes were tested, then the anti-corona structure suitable for high voltage motor stator bar was determined. The test bars were pre-pared by one-step forming VPI process of main insulation and anti-corona structure and the process of main insulation first undergo anti-corona treatment then curing respectively. The application results show that HR-x series of anti-corona tape is fully applicable to the stator bars formed by one-step VPI pro-cess, and the anti-corona performance can reach the advanced level at home and abroad.