防掉串用环-环型±800kV特高压直流复合绝缘子的研制

Development of Anti-Dropping Ring-Ring Type Composite Insulator for ±800kV UHVDC Transmission Lines

绝缘子是保证高压输电线路安全可靠运行的关键技术之一,防掉串±800kV直流复合绝缘子系列产品采用环-环型金具结构代替球头-球窝结构,防止掉串事故的发生。这种防掉串用环-环型特高压复合绝缘子的研制开发严格按照满足±800kV直流特高压工程要求进行设计和选材,采用完善的生产工艺和制造技术,总结加工经验,确保制造质量。产品机电性能能够满足特高压直流输电线路在重污秽、高海拔、覆冰等复杂气候地理环境下的安全使用要求。

Insulator is one of the key component to guarantee safe and reliable operation of high voltage transmission lines. The anti-dropping ±800kV DC composite insulator series is ring-ring structure instead of ball and socket structure to prevent the accident of insulator string dropping. The development of this anti-dropping ring-ring type UHV composite insulator is strict with the requirements of ±800kV UHVDC project in design and material selection. The perfect production processes and manufacturing technologies is used and the experiences in processing is summed up to ensure the manufacturing quality. This series of composite insulator can meet the safety requirements of UHVDC transmission lines in heavy pollution area, high altitude, icing and other complex climate and geographical environment.