一起直流电压互感器电压异常分析及处理  

Abnormal Analysis and Treatment on Voltage of DC Voltage Transformer

作　　者：曾智翔 房博一[1,2] 吕洋 蒋利军[1,2] 

机构地区：[1]中国南方电网超高压输电公司柳州局,广西柳州545006 [2]桂林电力电容器有限责任公司,广西桂林541004

出　　处：《电力电容器与无功补偿》2017年第5期87-91,共5页Power Capacitor & Reactive Power Compensation

摘　　要：针对某±500 kV换流站出现的电压异常波动现象,通过对站内直流电压互感器结构及设计原理进行分析,并搭建了直流电压测量系统进行测试,发现直流电压互感器远端模块存在接地不良的设计缺陷是引起系统测量电压异常的主要原因。针对存在的问题提出了改进措施并加以实施,有效地解决了直流电压互感器电压异常问题,也为今后同类设备的设计及选型提供了一定的参考。In view of the abnormal voltage fluctuation occurred in a certain ＋500 kV converter station, it is found that the abnormal measurement voltage at the remote module of DC voltage transformer is due to defect design in earthing by way of analysis of both structure and design principle of the DC voltage transformer in the station and of test through setting up DC voltage measurement system. The modification measures for the problem is proposed and implemented, which solves effectively the abnormal voltage issue of DC voltage transformer and also provides a definite reference for the design and selection of similar type of product in the future.

关 键 词：直流电压互感器 电压异常 直流系统 

分 类 号：TM451[电气工程—电器]