拉萨换流站电容器成套装置外绝缘的设计

拉萨换流站海拔高度4 000 m。为保证电力电容器装置可靠运行,解决高海拔对装置外绝缘影响,主要对拉萨换流站电容器成套装置的外绝缘海拔修正进行了总结。通过采用技术协议对拉萨换流站装置的外绝缘进行海拔修正,对电力电容器装置绝缘配合进行计算,由计算数据确定一个技术性可靠、经济性合理的高海拔修正的方法。用高海拔环境模拟装置进行试验,验证设计的产品外绝缘海拔修正设计合理,安全系数大,能满足该地区的高海拔要求。

External Insulation Design of Capacitor Installation at Lasa Converter Station

The altitude of Lasa converter station is 4 000 m.For assuring reliable operation of the power capacitor installation and solving the problem of the high altitude influence on the external insulation,the altitude correction of external insulation of capacitor set at Lasa converter station is mainly summarized.The insulation coordination of the capacitor set is calculated through altitude correction of external insulation of the device by the use of technical agreement,a technically reliable and economically reasonable high altitude correction method is defined by the calculation data.The test is performed by the use of high altitude environmental simulation device to verify that the design of altitude correction is reasonable with higher safety factor.The result meets the requirement in such high altitude area.