电工技术学报2017，Vol.32Issue(6)：248-255,8.
一种加载短路针的小型化气体绝缘组合电器内置特高频传感器
Needle Load Short Circuit Miniaturization of Gas Insulated Switchgear Ultra High Frequency Inside Sensor
齐伟强 1陈柏超 2袁佳歆 1周航 1段大鹏1
作者信息
- 1. 武汉大学电气工程学院 武汉 430072
- 2. 国网北京电科院 北京 100075
- 折叠
摘要
Abstract
Built-in ultra high frequency (UHF) sensor design needs to consider the safety and some other requirements such as miniaturization, low return loss and high sensitivity. Accordingly, this paper designs a new built-in UHF sensor with nipple column for gas-insulated switchgear (GIS). The effects of short-circuit pin number and position on sensor are analyzed though simulations. Combined with flange size of GIS, the optimum design is determined. Through simulations and experiments, the performance parameters affecting the sensor are discussed. The results show that both return loss and sensitivity achieve optimal, when short-circuit pin number for 110kV GIS is 4 and short circuit needle distance from the center of the circle is 40mm. In the laboratory, the sensor is verified by high and low temperature resistance test, air tightness test and partial discharge detection. The experimental results show that the developed sensor has good performance in high and low temperature resistance test as well as air tightness test; it has good response characteristic and high detection sensitivity in internal typical partial discharge of GIS. The developed sensor can detect clear discharge UHF waveforms and the detection SNRs are greater than 10.关键词
局部放电/短路针/特高频/气体绝缘组合电器/内置传感器Key words
Partial discharge/short circuit needle/ultra high frequency/gas insulated switchgear/built-in sensors分类
信息技术与安全科学引用本文复制引用
齐伟强,陈柏超,袁佳歆,周航,段大鹏..一种加载短路针的小型化气体绝缘组合电器内置特高频传感器[J].电工技术学报,2017,32(6):248-255,8.
