杭州地區輸電線路雷擊故障原因及對策
楊先進，胡偉，費敏
國網杭州供電公司，浙江 杭州 310009
摘 要：分析了杭州地區110 ～ 500 kV 輸電線路雷擊跳閘原因，并根據該地區雷電活動的特點制定了相應的防雷改造對策，通過采用“改造接地電阻為主，加裝避雷器為輔”的防雷措施，大幅度提高桿塔的反擊耐雷水平，有效防止線路繞擊，降低了線路雷擊跳閘率。
關鍵詞：輸電線路；雷擊；原因；對策
中圖分類號：TM862 文獻標識碼：B 文章編號：1007-3175(2014)02-0041-03
Transmission Line Lightning Fault Causes and Countermeasures in Hangzhou Area
YANG Xian-jin, HU Wei, FEI Min
Hangzhou Power Supply Company of State Grid, Hangzhou 310009, China
Abstract: Analysis was made to 11 0~500 kV transmission line lightning tripping causes in Hangzhou area and according to the features of the area lightning activities, this paper laid down the corresponding anti-lightning reform countermeasures. Via adoption of anti-lightning measures as reforming grounding resistance as the main; additionally installing arrestors as the assistance, the anti-lighting level of pole tower was greatly lifted, which effectively prevents lines from winding lighting, reducing line lighting tripping rate.
Key words: transmission line; lightning; cause; countermeasure
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