聚四氟乙烯材料在大型水轮发电机绝缘系统中的应用

Application of PTFE to the Insulation System of Large Hydrogenerators

聚四氟乙烯材料常见应用在汽轮发电机上,作为绕组绝缘引水管、转子楔下垫条和扇形护环瓦表面的滑移层等关键部位材料,表现出了一般绝缘材料无法代替的优异性能,现在已经逐步应用到大型水轮发电机和特种电动机上。本文主要介绍聚四氟乙烯作为绝缘、滑移、密封、耐磨材料在大型水轮发电机绝缘系统关键部位的应用情况,为相关的电机设计和研究人员提供参考。

PTFE is commonly used as insulation materials of crucial parts in turbogenerators, such as insulating hose, smooth layer of the rotor wedge, separate tape. Its performance is much more excellent than general insulating materials. This paper mainly introduces its application in crucial components of large hydrogenerators, to give reference for designers and researchers of such generators.