CAJ | 학술논문

通过对开断电弧运动过程观察,发现在双断点塑壳断路器开断过程中,两个断口之间存在电弧能量的不平衡,不利于断路器综合性能的提高。进一步的分析实验认为,电弧背后击穿是引起电弧能量不平衡的主要原因,通过适当的设计抑制背后击穿,可以使断口间能量有效趋于平衡。
통과대개단전호운동과정관찰,발현재쌍단점소각단로기개단과정중,량개단구지간존재전호능량적불평형,불리우단로기종합성능적제고。진일보적분석실험인위,전호배후격천시인기전호능량불평형적주요원인,통과괄당적설계억제배후격천,가이사단구간능량유효추우평형。
Through experimental observation, this paper put forward that the arcing energy between the two gaps of a double-break MCCB may be unbalanced in breaking operation, and this may exert negative influence on the breaking performance of MCCB. Based on further study and experiment, back-commutation is confirmed to be the main cause for the unbalance issue; consequently by constraining of back-commutation, the balance can be approached through the means of reasonable designing.