电气线路负荷检测工艺在用电安全检查中的应用  

Application of Electrical Circuit Load Detection Technology in Electrical Safety Inspection

作　　者：权春霞 聂晓琴 QUAN Chunxia;NIE Xiaoqin(Xining Power Supply Company,State Grid Qinghai Provincial Electric Power Company,Xining,Qinghai 810000,China;Marketing Service Center,State Grid Qinghai Electric Power Company,Xining,Qinghai 810000,China)

机构地区：[1]国网青海省电力公司西宁供电公司,青海西宁810000 [2]国网青海省电力公司营销服务中心,青海西宁810000

出　　处：《自动化应用》2024年第23期129-132,共4页Automation Application

摘　　要：旨在探索电气线路负荷检测工艺在用电安全检查中的应用。以某住宅小区50个家庭为样本,检测了试验前、正常用电、超负荷用电、电气故障4个阶段的样本。试验发现:试验中的正常用电数据符合试验前基线模型数据及用户用电变化趋势;所有家庭组在负荷增加后的功率均有显著提升,同时预警系统能够在短时间内响应,特别是在用电量较高的家庭中,预警响应时间较快,平均不超过3 s,说明系统对高负荷的预警能力较为敏感。当线路发生短路故障时,功率骤降至零,电流变化显著,系统能在平均2 s内发出预警;当线路发生过热故障时,功率和电流增加,系统同样能有效报警,但预警时间略长,平均为3 s。此外,误报率保持在较低水平,说明系统的准确性较高,符合用户安全检查的相关要求。This paper aims to explore the application of electrical circuit load detection technology in electrical safety inspection.A sample of 50 households in a residential community was tested for four stages:Pre experiment,normal electricity consumption,overload electricity consumption,and electrical faults.Experimental findings:The normal electricity consumption data in the experiment conforms to the baseline model data before the experiment and the trend of user electricity consumption changes.All household groups showed a significant increase in power after an increase in load,and the warning system was able to respond in a short period of time.Especially in households with high electricity consumption,the warning response time was fast,averaging no more than 3 s,indicating that the system′s warning capability for high loads is sensitive.When there is a short circuit fault in the line,the power drops sharply to zero and the current changes significantly,and the system can issue a warning within an average of 2 s.When there is an overheating fault in the line,the power and current increase,and the system can also effectively alarm,but the warning time is slightly longer,averaging 3 s.In addition,the false alarm rate remains at a low level,indicating that the system has high accuracy and meets the relevant requirements for user security checks.

关 键 词：电气线路 负荷检测 用电安全 检查 

分 类 号：TM714[电气工程—电力系统及自动化]