变电站开关柜"在线监测+带电检测"双模式研究与应用
Research and Application of Dual Modes of"Online Monitoring+Live Detection"for Substation Switchgear
王晓辉 1赵雨 1柏小辉 1李虎 1尹建忠 1李铠1
作者信息
- 1. 国网冀北电力有限公司廊坊供电公司,河北 廊坊 065000
- 折叠
摘要
高压开关柜是电力设备的重要组成部分,由于高压开关柜在长期运行过程中受到环境的温度、湿度以及电力设备的材质性质、电动力产生的震动等因素的影响.为保障高压开关柜安全稳定运行,采用"在线监测+带电检测"双模式监测,将在线状态监测与局部放电检测有效结合,通过温度、湿度、风机在线监测实现对高压开关柜运行状态实时监测,采用暂态地电压检测与超声波检测实现高压开关柜局部放电检测,有效预防开关柜过热或凝露情况,及时发现电气设备潜在隐患及变化趋势,有效降低开关柜故障率.
Abstract
High voltage switchgear is an important component of power equipment.During long-term operation,high-voltage switchgear is affected by factors such as environmental temperature,humidity,material properties of power equipment,and vibrations generated by electrical forces.To ensure the safe and stable operation of high-voltage switchgear,this article adopts a dual mode monitoring system of"online monitoring+live detection",which effectively combines online status monitoring with partial discharge detection.Real time monitoring of the operating status of high-voltage switchgear is achieved through online monitoring of temperature,humidity,and fan.Transient ground voltage detection(TEV)and ultrasonic detection(AE)are used to achieve partial discharge detection of high-voltage switchgear,effectively prevent overheating or condensation of switchgear,promptly identify potential hazards and trends in electrical equipment,and effectively reduce the failure rate of switchgear.
关键词
高压开关柜/暂态地电压检测/超声波检测/"在线监测+带电检测"双模式Key words
high voltage switchgear/transient earth voltage detection(TEV)/ultrasonic testing(AE)/dual mode of"online monitoring+live detection"引用本文复制引用
出版年
2024
NETL
NSTL
万方数据