换流站交流滤波场高端光CT异常态故障诊断
王嘉毅，吴继顺，俞林广，刘叶杰
（浙江省送变电工程有限公司，浙江 杭州 310016）
摘 要：±800 kV 换流站随着运行时限的逐渐增长，交流滤波器场小组开关高端光CT故障率也越来越高。针对±800 kV 换流站交流滤波器场运行过程中光CT出现的异常态，结合现场历史数据对光回路进行了分析，并结合2020 年某换流站年度检修工作，对交流滤波器高端光CT进行故障诊断和排查。通过光时域分析仪等检修方法，逐级检查出光回路故障点，实现了对换流站交流滤波器5631B相高端光CT和5634A相高端光CT故障的消除。
关键词：换流站；高端光CT；故障诊断
中图分类号：TM452 文献标识码：A 文章编号：1007-3175(2021)01-0054-06
Fault Diagnosis of Abnormal High-End Optical CT
in ACFilter Field of Converter Station
WANG Jia-yi, WU Ji-shun, YU Lin-guang, LIU Ye-jie
（Zhejiang Power Transmission and Transformation Engineering Co., Ltd, Hangzhou 310016, China）
Abstract: With the gradual increase of the operating time limit of the ±800 kV converter station, the failure rate of the high-end opticalCT of the AC filter field group switch is getting higher and higher. In this paper aim at the abnormal state of the optical CT during the operationof the AC filter field of the ±800 kV converter station, the optical circuit is analyzed based on the historical data of the site, and combinedwith the annual maintenance work of a converter station in 2020, the high-end optical CT perform fault diagnosis and troubleshooting.Through maintenance methods such as optical time domain analyzer, the fault points of the optical circuit are checked step by step, and thefaults of the 5631 B-phase high-end optical CT and 5634 A-phase high-end optical CT of the converter station AC filter are eliminated.
Key words: converter station; high-end optical CT; fault diagnosis
参考文献
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