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1事故经过2009年11月9日6时,某地区遭遇强对流天气,引发220kV甲乙线发生A相故障,甲变侧两套保护装置(CSC101A+RCS902A)的主保护均在29ms动作出口跳开甲208A相开关,经892ms后重合成功;乙变侧两套保护
1 Accident After passing the strong convective weather in a certain area at 6:00 on November 9, 2009, causing A-phase fault on the A and B lines of 220kV, the main protection of the two sets of protection devices (CSC101A and RCS902A) A 208A phase switch, after 892ms overlap success; B side of the two sets of protection