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1背景情况从2013年7月30日16时起,受强对流天气影响,合肥市突降暴雨,局部地区10分钟内降雨量超过60毫米,瞬间风力达到10级以上。受此影响,合肥电网1基110千伏电力铁塔严重扭曲变形,造成同塔架设的110千伏常石线、常休线路跳闸。同时,大量被风刮断的树木及广告牌漂浮物砸落在10千伏配电线路上,造成10千伏主干线路短时间集中跳闸达24条,导致合肥城区中南部部分区域停电。涉及停电用户1.8万户,其中重要客户2户,损失负荷约3万千瓦。
1 Background From the start of the night on July 30, 2013 at 16:00, due to strong convective weather, Hefei City, with heavy rainfall, rainfall over 60 millimeters in 10 minutes in some areas, and instantaneous wind power reached above Grade 10. Affected by this, Hefei Power Grid 1 base 110 kV power tower serious distortion, resulting in the same tower erected 110 kV common stone line, Chang Hsun line trip. At the same time, a large number of wind-scraped trees and floating billboards hit the 10-kilovolt distribution line, resulting in a short-term trunking of 10 kilovolt trunk lines reaching 24, causing power outages in some areas in central and southern Hefei. Involving 18,000 power users, including two important customers, the loss of about 30,000 kilowatts load.