GW16、GW17型隔离开关防冰措施初探

GW16、GW17型户外高压隔离开关在电网中应用广泛,而该型隔离开关导电杆普遍存在进水缺陷,特别是2008年初冰灾期间由于进水结冰出现了大量故障。为了保证电网安全,针对该型隔离开关的内部结构作了分析,并提出了可行的防冰改进措施:应积极利用停电时间,对GW16、GW17型隔离开关实施防冰技术改造;建议设计及选型时,可选用避免雨水进入导电管内部的新型结构隔离开关。

Study on the Measures of Anti-icing GW16 and GW17 Disconnector

GW16 and GW17 outdoor HV disconnectors are widely used in the electric power grid,but the conductive rods of the type have a ubiquitous water-leak deficiencies,especially during the ice disaster in early 2008,it causes much freezing failure.To ensure the safe operation of the electric power grid,the internal structure of this disconnector is analysed,and the corresponding feasible measures for anti-icing are actualized.The effective measures are make active use of power cut time,implement anti-icing technology for GW16 and GW17 disconnectors,and during the period of design and type choosing select new structure disconnector with conductive rods to prevent water-leak.