LW16-40.5型SF6断路器常见故障原因分析及处理

Failure Analysis of Sulfur Hexafluoride Circuit Breaker Installation and Operating Mechanism——Take Douyang Electric Power Station for Example

20世纪50年代初,开始出现使用六氟化硫作为断路器中的灭弧介质,由于该气体的特性,使该种断路器单断口在电压和电流参数方面优于传统的断路器,20世纪60—70年代,SF6断路器已在国际上得到广泛运用,该文以斗晏水电站机组安装与电站运行为例,介绍其操动机构常见故障的原因及解决对策。

In the early 1950s, sulfur hexafluoride was used as the arc extinguishing medium in circuit breakers. Due to the characteristics of the gas, the single fracture of this type of circuit breaker is far superior to traditional circuit breakers in terms of voltage and current parameters. This also made SF6 circuit breakers widely used in the 1960s and 1970s. Taking the unit installation and power station operation of Douyan Power Plant as an example, this paper will introduce the causes and solutions of common operating mechanism and the countermeasures of sulfur hexafluoride circuit breakers.