高压电气设备的结构形式特殊,具有重量大、阻尼比小、重心高、设备中瓷件变形能力差等特点,这些特点使得高压电力设施的抗震性能较差,成为电力系统中的抗震薄弱环节。2008年5月12日汶川大地震造成震区多座高压电抗器发生破坏,导致停电,给震区的灾后重建带来困难。针对高压电抗器的特点,在基础部位设置隔震层,对电抗器进行成组隔震设计,隔震层由叠层橡胶隔震支座组成。结合实际工程给出高压电抗器隔震计算的建模原则、计算方法与分析步骤。计算结果表明,采用隔震技术可以显著降低高压电抗器的地震反应,是提高电气设备抗震能力的有效而实用的途径。 High-voltage electrical equipment has the special structure and has the characteristics of large weight, small damping ratio, high center of gravity and poor deformation ability of porcelain pieces in the equipment. These characteristics make the high-voltage power facilities less aseismic and become the weak link in the power system. On May 12, 2008, a number of high-voltage reactors in the earthquake area caused the destruction of Wenchuan Earthquake, resulting in power outages and difficulties in post-quake reconstruction in the quake zone. According to the characteristics of high voltage reactor, a base isolation layer is installed on the base part, and the reactor is designed as a group of isolated isolation. The isolation layer is composed of laminated rubber isolation bearings. Combining with the actual project, the modeling principle, calculation method and analysis steps of high-voltage reactor isolation calculation are given. The results show that the seismic isolation technology can significantly reduce the high-voltage reactor seismic response, is to improve the seismic resistance of electrical equipment, an effective and practical way.