合成绝缘子在1000kV变电站悬垂绝缘子串中的应用研究

Research on Application of Composite Insulator in 1000kV Substation Suspension Insulator Strings

针对1 000 kV特高压变电站绝缘子串采用瓷绝缘子片具有片数多、结构长、重量大及运维工作量大的缺点,对合成绝缘子在1 000 kV特高压变电站悬垂绝缘子串中的应用进行了研究。基于已有运行经验,给出了1 000 kV合成悬垂绝缘子串的组串方案。经分析,采用合成悬垂绝缘子串可节省变电站构架投资,具有一定的技术经济性。

In the light of some shortcomings of insulator strings using porcelain insulator in 1000 kV UHV substation,such as a large amount ol pieces,long slruclnrc.large weight and too much operation and maintenance work,the paper studies the application of composite insulator in suspension insulator strings in 1000 kV UHV snhslalion,and presents the assembly scheme for 1000 kV composite suspension insulalor string based on the present operating experience.The analysis shows that the investment of substation Structure can he reduced by applying the composite suspension insulator strings.