【摘要】 介绍了汶川地震对当地电力系统造成的总体破坏和经济损失情况;列出了四川地震中烈度为Ⅸ度及以上地区的国家电网四川省电力公司管辖的110kV及以上的变电站的震害状况;总结了变电站室内外高压电器设备、线路、输电塔的主要震害现象;对不同烈度区内变电站的变压器及其它各类高压电气设备的破坏频次、变电站停运状况以及功能恢复的时间进行了统计,据此总结了四川地震中烈度Ⅵ—Ⅺ地区电力设施震害特点和电力系统功能损失模式特点;分析了此次地震中电力系统遭受破坏的主要影响因素,对电力系统薄弱环节提出了具体的抗震加固措施和建议,为将来变电站地震灾害快速评估提供依据,为提高电力设施的抗震可靠性提供参考.更多还原

【Abstract】 The overall damage and losses of Sichuan electric power system caused by Wenchuan earthquake were introduced.The damage situation of substations at 110kV and above were listed,which were located in areas with earthquake intensity Ⅸ and above and managed by the state grid company in Sichuan Province.The major damage phenomena of indoor and outdoor high-voltage electrical equipments,transmission towers,distribution poles and lines were summerized.The statistics of the damage frequency,interruption situation and recovery time of substations at different levels of intensity were given.On these grounds,the Wenchuan quake damage characteristics of electric facilities in areas with intensity Ⅵ to Ⅺ,and the failure mode of electric systems were summerized.The main factors for this quake damage to the systems were analyzed.Several new measures and suggestions to strengthen the system’s weakness had been put forward.The results can provide the reference for rapid evaluating the substations damage and improving the electric facilities seismic reliability.更多还原