摘要
在长期运行过程中开关设备难免出现局部故障而给电网安全运行带来潜在威胁,带电检测技术能及时发现并处理故障,逐渐成为电网维护的重要手段。本文对其原理与应用进行综述,详细分析了其在变电站开关设备的应用效果及局限性,并探讨了特定带电检测技术如谐波抑制变压器在开关设备局部故障检测中的应用。为全面评估该技术效果,本文提出了局部故障带电检测水平测试方法,并构建了基于供电质量评估指标的评估模型,比较了其在不同类型开关设备、不同运行环境下的应用效果,分析了长期运行效果与短期检测效果,以进一步提高电网运行可靠性。
In the long-term operation of the switch equipment,it is inevitable that there will be local failure,which brings potential threats to the safe operation of the power grid.In order to find and deal with faults in time,live-line detection technology comes into being,and gradually become an important means of grid maintenance.In this paper,the principle and application of live detection technology are summarized,and their application effects and limitations in substation switchgear are analyzed in detail.This paper also discusses the application of specific live detection techniques,such as harmonic suppression transformer,in local fault detection of switchgear.In order to evaluate the effectiveness of live detection technology,this paper proposes a test method of live detection level for local faults,and constructs an evaluation model based on power supply quality evaluation index.It also compares the application effect of live detection technology in different types of switch equipment and different operating environment,and analyzes the long-term operation effect and the short-term detection effect,so as to further improve the operation reliability of power grid.
作者
李新涛
张海舰
LI Xintao;ZHANG Haijian(State Grid Shandong Electric Extra High Voltage Company,Jinan 250021,P.R.China)
出处
《灯与照明》
2025年第5期205-207,共3页
Light & Lighting
关键词
变电站
开关设备
带电检测
振动信号
substation
switchgear
live detection
vibration signal
