LTB245E1 －BLK222 型断路器机构缺陷的分析

Analysis on Fault of Operating Mechanism in LTB245E1 － BLK222 Circuit Breaker

摘要:

LTB245E1 型断路器为 220 kV SF6 断路器，配置 BLK222 型弹簧操动机构，目前广泛应用于四川电网中。通过 对一起该型断路器弹簧机构缺陷原因的分析，就 LTB245E1 － BLK222 型断路器检修工作重点及对策进行了探讨，以预 防电气故障的发生。

Abstract:

LTB245E1 circuit breaker is a widely used switch equipment in electric power enterprises currently． It is the 220 kV SF6 circuit breaker produced by Beijing ABB Company，which is equipped with BLK222 spring operating mechanism． A typical fault of spring operating mechanism is analyzed． In order to prevent the electrical faults，the focus of the repair work and countermeasures are discussed．