GIS管母形变在线监测系统的设计及应用

Design and Application of On-line Monitoring System for Deformation of GIS Tubular Busbar

高压交直流输电领域广泛使用GIS气体绝缘组合电器,现场应用过程中该类型组合电器特别是管母会因环境温度变化出现一定幅度的伸缩,造成密封不严、绝缘介质泄漏等事故。为此,研制一种可对GIS装置伸缩量进行实时在线监测的高精度测量装置,方便运维人员及时发现GIS管母形变,确保交直流电网安全稳定运行。

Gas-insulated combined electrical appliances are widely used in the field of HVAC and HVDC transmission. In the field application process,it is found that this type of combined electrical appliances,especially the tubular busbar,will have a certain degree of expansion and contraction due to changes in ambient temperature,resulting in accidents such as poor sealing and leakage of insulating medium. In this paper,a device with high measurement accuracy for real-time online monitoring of the expansion and contraction of GIS devices is developed,in order to facilitate the operation and maintenance personnel to find the deformation of the GIS tubular busbar in time and ensure the safe and stable operation of AC and DC grids.