特高压换流站光学电流互感器测量接口分析及故障安措优化建议

Analysis of Optical CT Measurement Interface of UHV Converter Station and Optimization for Fault Treatment

分别介绍了Asea Brown Boveri、南京南瑞继保电气有限公司以及许继电气股份有限公司生产的光学电流互感器(以下简称光CT)的测量原理,根据各设备的测量原理对每种技术的光CT测量接口及信号传输路径进行了分析,并根据极内高、低端阀组的不同状态,阐述了直流系统运行时各生产厂家光CT故障处理及安措要求,同时对以往运行中出现的光CT测量系统设备故障原因进行了分析,给出相关的运维注意事项及建议。

This paper introduces the measurement principle of optical CT produced by Asea Brown Boveri,Nanjing Nanrui Relay Protection Electric Co.,Ltd.,and XJ Electric Co.,Ltd.,and analyzes the optical CT measurement interface and signal transmission path of each technical route according to the measurement principle of each manufacturer.According to the status of high and low internal valve sets,the paper expounds the optical CT fault treatment and safety measures requirements of each manufacturer during the operation of the DC system,and analyzes the causes of the optical CT measurement system equipment failures in the past operation,and puts forward the relevant operation precautions and suggestions.