高压交流六氟化硫断路器开断近区故障的探讨

Discussion on the Short-line Fault of AC High Voltage SF_6 Circuit Breaker

高压交流断路器是电力系统中重要的开关设备,作为输变电线路的控制和保护用,其必须具备开断故障电流的能力,而开断近区故障电流是其最重要的能力之一。本文介绍了高压交流六氟化硫断路器开断近区故障电流的影响因素,并指出断路器在不同速度、气压以及线路侧增加时延对开断性能的影响。

AC high voltage SF6 circuit breakeris animportant switch equipment in power system, and it is the control and protection of power transmission line, it must have the ability of breaking fault current, and breaking short - line fault cur- rent is one of the most important ability. Thearticleintroduces actors of AC high voltage SF6 circuit breaking short line fault the current, and points out influence factors that different speed, pressure and whether time delay on breaking on line side.