摘要
作为电力系统保护及信号测量的重要设备,电容式电压互感器在电力系统中得到了广泛应用。本文从理论分析入手,对电容式电压互感器常见故障与二次电压的关系进行了分析。在此基础上,提出了一种利用现有电网实时监控系统数据的电容式电压互感器在线监测方法,并结合电网的实际运行经验,给出CVT异常报警相关的参数设定。
As an important equipment providing signals for power system protection and measurement,capacitor voltage transformer has been widely used in power systems.Firstly,the relationship between the common faults of capacitor voltage transformer and the secondary voltage is analyzed in theory.On this basis,an online monitoring method of capacitive voltage transformer based on existing power grid real-time monitoring system data is proposed,and the relevant parameter settings are given with actual operation experience in the power grid.
作者
刘宇
李光茂
林艺
商国东
LIU Yu;LI Guangmao;LIN Yi;SHANG Guodong(Electric Power Test And Research Institute of Guangzhou Power Supply Bureau Co.,Ltd.,Guangzhou Guangdong,510410)
出处
《自动化与仪器仪表》
2018年第12期65-67,71,共4页
Automation & Instrumentation
基金
广州供电局有限公司电力试验研究院科技项目“基于二次电压波动特征的电容式电压互感器在线监测及绝缘诊断方法研究”(GZHKJXM20160010)
关键词
电容式电压互感器
在线监测
二次电压
capacitor voltage transformer
online monitoring
secondary voltage
