避雷器在线监测装置现场校验系统的研发
Design and Development of AN Automatic Calibration System for Voltage Dividers
DOI: 10.12677/JEE.2019.71006, PDF,   
作者: 张 露, 王永勤, 贺家慧:国网湖北省电力有限公司电力科学研究院,湖北 武汉;李进扬, 吴 彤:国网湖北省电力有限公司,湖北 武汉;邵华锋, 李小双:武汉新电电气股份有限公司,湖北 武汉
关键词: 避雷器在线监测装置现场校验增量注入法Metal Oxide Arrester Online Monitoring Device Field Verification Additional Injection Method
摘要: 论文针对避雷器在线监测装置的现场校验存在的困难,基于“增量注入法”提出了阻性电流、容性电流及全电流的校验原理,并研发了校验系统。实验室测试和现场实测的结果表明,该校验系统输出电流误差在0.5%以内,相位误差在0.1以内,满足现场校准准确度要求。校验系统还解决了现场需求输出电流与PT二次侧电压同频同相难的问题,为容性设备在线监测现场校准提供了参考。
Abstract: In order to solve the problem of field verification of online monitoring device in metal oxide ar-resters, based on the additional injection method, the verification principle of resistive current, capacitive current and total current is proposed, and the verification system is developed. The results of laboratory tests and field measurements show that the output current error of the verification system is within 0.5%, and the phase error is within 0.1, which meets the requirements of field verification accuracy. The verification system also solves the problem that the output current of field demand and the voltage of PT secondary side have difficulty in the same frequency and phase, which provides the reference for field verification of online monitoring device in capacitive equipment.
文章引用:张露, 李进扬, 王永勤, 贺家慧, 吴彤, 邵华锋, 李小双. 避雷器在线监测装置现场校验系统的研发[J]. 电气工程, 2019, 7(1): 53-62. https://doi.org/10.12677/JEE.2019.71006

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