金属氧化物避雷器带电检测及异常分析Live Detection and Abnormality Analysis of MOA
刘江明,艾云飞,吴承福,罗晨晨,张翾喆
LIU Jiangming,AI Yunfei,WU Chengfu,LUO Chenchen,ZHANG Xuanzhe
摘要(Abstract)：
金属氧化物避雷器带电检测相比传统的停电检测具有极大的优势,但现场检测时带电设备之间存在错综复杂的耦合电容关系,不可避免地会给被试金属氧化物避雷器带来干扰。在分析"一"字形排列避雷器相间干扰基础上,结合实际检测案例,分析外界空间干扰所带来的影响,并指出在现场干扰条件下,当边相发生异常后采用边相补偿方式会导致正常相阻性电流检测数据异常,造成对避雷器设备状态的误判。现场检测时需根据实际干扰因素,对试验数据进行差异化分析,同时结合其他检测方法进行综合分析与评价。
Compared with traditional de-energized testing, live MOA testing has great advantages. But due to the intricate coupling capacitance relations among the energized devices in field test, interference to tested MOA is inevitable. Based on the analysis of interference between the phases of linear arresters, this paper analyzes the impact of environment disturbances, according to real testing cases. It points out that with surrounding interference, when the side phase is abnormal, the side-phase compensation causes abnormal changes of normal phase resistive current data, leading to misjudgment of MOA condition. In field test, it is necessary to analyze the differentiations among test data and analyze and evaluate comprehensively with other testing methods based on actual interfering factors.
关键词(KeyWords)：
氧化锌避雷器;带电测试;阻性电流;干扰分析;补偿方式
MOA;living test;resistive current;interference analysis;compensation mode
基金项目(Foundation):
作者(Author):
刘江明,艾云飞,吴承福,罗晨晨,张翾喆
LIU Jiangming,AI Yunfei,WU Chengfu,LUO Chenchen,ZHANG Xuanzhe
DOI: 10.19585/j.zjdl.2017.03.009
参考文献(References)：
- [1]杨殿成.金属氧化物避雷器带电测试干扰分析[J].高压电器,2009,45(5):130-132.
- [2]高树功,沈映.氧化锌避雷器抗相间、空间干扰带电测试研究[J].云南电力技术,2014,42(6):15-18.
- [3]周龙,陈继东,文远芳.氧化锌避雷器阻性电流的谐波分析法[J].华东电力,1997,25(7):44-45.
- [4]丁品南,钟雅风,颜文.氧化锌避雷器阻性电流测试仪的研制及其应用[J].中国电力,2000,33(2):48-50.
- [5]GB 11032-2010交流无间隙金属氧化物避雷器[S].北京:中国标准出版社,2010.
- [6]蔡翊涛.在运行电压下测量MOA阻性电流[J].电瓷避雷器,2004(5):30-31.
- [7]左文启,顾渊博.220 k V金属氧化物避雷器红外热缺陷及处理分析[J].电瓷避雷器,2010(1):26-28.
- [8]万四维.金属氧化物避雷器缺陷与阻性电流关系的分析探讨[J].电瓷避雷器,2007(2):31-34.
- [9]刘安文,许甜田,张少成.带电检测发现金属氧化物避雷器阻性电流异常的案例分析[J].浙江电力,2015,34(6):13-15.
- [10]冯新江,吴健,归宇,等.避雷器泄漏电流式高压带电显示装置的应用[J].浙江电力,2016,35(4):74-76.
- [11]Q/GDW 1168-2013输变电设备状态检修试验规程.北京:中国电力出版社,2013.