SF6微水含量在线检测系统的研发  

作　　者：宁进荣 

机构地区：[1]广西电网有限责任公司玉林供电局,广西玉林537000

出　　处：《中国科技纵横》2015年第4期187-190,共4页China Science & Technology Overview

摘　　要：SF6开关因为sF6优良的绝缘性和稳定性近年来得到了快速推广应用，已经全面取代原来的油开关。但以SF6作保护气一个最重要的前提是，SF6须非常的干燥，否则可能会引发严重的生产事故。由于开关柜密封的原因，SF6和空气中的水分是不断相互渗透的。为保证安全，必须经常地对SF6中的微水含量进行检测．传统的做法是，定期对SF6进行采样分析。这种做法不仅SF6消耗大，工作量大，更重要的是不能及时发现问题。我们使用电容类湿敏元件做传感器，设计开发出在线的SF6微水含量分析系统，以实时地对开关柜中的SF6的工况进行监控，并能较准确地反映出SF6的露点、含水量、密度、压力及温度等参数，一经发现，及时报警，将事故消灭于萌芽中。Famous for its good insulation and stability, SF6 Gas Insulation Switch is widely and rapidly applied these years, fi.dly in replace of original oil switch. The most important premise for using SF6 as protective gas is that SF6 must be very dry, otherwise, it may cause serious accident. As the switch cabinet is closed, SF6 and water in the air is inter-infiltrated constantly. For security reason, the micro-water in SF6 must be checked constandy.Traditionally, sample analysis of SF6 will be done on a regular basis, the approach with take big workload and consume lots of SF6, but can＇t find problem in time. Now, we applied capacitance type humidity sensor, and developed on-line micro-water of SF6 pressure and temperature, etc, SF6 in switch cabinet can be monitored in time possible accident will be nipped in the bud. analysis. By telling the parameters, such as drew point, water content, density, and properly, Once a problem found, a timely alarm will be reported, and any

关 键 词：六氟化硫开关 微水含量 在线监测 

分 类 号：TM564.2[电气工程—电器]