短路合闸相角与三极断路器各极的分断性能

摘要

Starting from making phase angle of three-phase short-circuit test, this paper analyzed the different impact of making phase angle on tri-pole circuit-breaker each pole. Comparison of three-phase different rigorous degree was made from recovery voltage, let-through energy, arc energy and peak current after breaking. Due to the difference of the circuit-breaker arc blowout system, the uncertain rule existed, but the system was universally adaptable to the circuit breaker of fine arc blowout performance.%从三相短路试验的合闸相角出发,分析合闸相角对三极断路器各极不同的影响,从分断后的恢复电压、允通能量、电弧能量、峰值电流四个方面比较三相的不同严酷程度,虽然由于断路器灭弧系统性能的差异,该规律存在着不确定性,但普遍适用于灭弧性能良好的断路器。