电容型设备绝缘在线监测与诊断技术综述.pdfVIP

第27 卷 第8 期 电 网 技 术 Vol. 27 No. 8 2003 年8 月 Power System Technology Aug. 2003 文章编号：1000-3673 （2003 ）08-0072-05 中图分类号：TM 835.4 文献标识码：A 电容型设备绝缘在线监测与诊断技术综述 王 楠，陈志业，律方成 （华北电力大学电力工程系，河北省保定市 071003 ） A SURVEY OF ON-LINE MONITORING AND DIAGNOSIS FOR CAPACITIVE EQUIPMENT WANG Nan, CHEN Zhi-ye, LÜ Fang-cheng （Dept. of Electric Power Engineering, North China Electric Power University, Baoding 071003, Hebei Province, China ） ABSTRACT: With rapid development of power system, the 绝缘事故，不仅会造成设备本身损坏，而且还会造 traditional periodical maintenance can not meet the need of 成多方面的损失。据文献[1]统计，“八五”期间， secure operation of high voltage equipments for power 我国主要电网中由设备故障而直接影响系统安全 transmission and transformation. Therefore, it is an inexorable 运行的电网事故约占事故总量的26.3% 。电压等级 trend to replace the traditional periodical maintenance with 越来越高、设备容量越来越大，使得每次检修的时 condition based maintenance step by step and the real-time 间较长，不仅检修费用高，而且也影响供电的可靠 insulation monitoring and diagnosis is the basis of condition 性。在电力市场环境下，用户对供电可靠性要求将 based maintenance. Capacitive equipment possesses important position in substation, so the real-time monitoring of its 越来越高，而由设备故障或检修所造成的停电损失 insulation situation is very important. The contents of on-line 有时是相当可观的。因此既要提高设备的运行可靠 monitoring of capacitive equipment are described. The present 性，又要确保较高的供电可靠率，这就对电力设备 situation of the research on the on-line monitoring and 的维护提出了更高的要求。 diagnosis and its applications are expounded. Some 传统的定期检修存在试验周期长、强度大和有 suggestions