对误动作原因及故障处理展开分析，并提出预防类似事故再次发生的解决措施。
Launch the analysis to the misoperation reason and the failure processing, and proposed the prevention similar accident occurs once more solution measure.
1988年8月6日，由于母线差动保护误动作使线路故障扩大，造成了贵阳电网瓦解的大面积停电事故。
On August 6th 1988, in Guiyang Power System, a line fault was extended to a cascade shutdown accident because of the mal-operation of a busbar differential protection.
1988年8月6日，由于母线差动保护误动作使线路故障扩大，造成了贵阳电网瓦解的大面积停电事故。
On August 6th 1988, in Guiyang Power System, a line fault was extended to a cascade shutdown accident because of the mal-operation of a busbar differential protection.
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