套管局放UHF检测用传感器的比选与应用  

Comparison and application of sensor for UHF detection of bushing partial discharge

作　　者：朱学成 高自伟 姜德胜[2] 王洪海 张健 徐超 

机构地区：[1]黑龙江省电力科学研究院,哈尔滨150030 [2]国网黑龙江省电力有限公司技能培训中心,哈尔滨150030 [3]国网长春供电公司调度控制中心,长春130000

出　　处：《黑龙江电力》2016年第3期257-262,共6页Heilongjiang Electric Power

摘　　要：在介绍和分析传感器技术及套管局部放电特高频检测特点的基础上,结合变压器套管事故特点,提出了将平面等角螺旋天线用作套管局部放电检测的传感器,通过仿真分析和套管封闭式末屏接触不良、下瓷套沿面放电、均压环悬浮放电和顶部悬浮放电4种典型放电模型的性能比选及现场应用,证明了平面等角螺旋天线具有宽频带、低损耗、高灵敏度、时延稳定等优点,性能满足局放源识别和定位等方面要求。This paper using planar equiangular spiral antenna as a sensor for UHF detection of bushing partial discharge,based on the introduction and analysis of sensor technology and the characteristics of UHF partial discharge detection for bushing,combining the characteristics of transformer bushing accidents,verifies that planar equiangular spiral antenna has the advantages of wide bandwidth,high sensitivity,low loss,and delay stability,with the performance meeting the requirements of local source identification and location,through the performance comparison and the on site application of 4 typical discharge models including closed bushing tap poor contace,creep age discharge of porcelain bushing,suspended discharge of strapping and suspended discharge at the top.

关 键 词：套管 特高频 局部放电 传感器 平面等角螺旋天线 

分 类 号：TM403.5[电气工程—电器] TN823.31[电子电信—信息与通信工程]