错接线工况下电能表计量逻辑的分析

Analysis of Metering Logic in Wrong Connection Condition

介绍了错接线在线诊断模型,该模型依托高频采集的电压、电流、有功功率、无功功率等数据,结合大数据分析技术,实现错接线现场停电核查转变至线上诊断。但在差错电量计算的过程中,发现了2种电能表计量逻辑错误的情况,通过用电信息采集系统数据测算、实验室检测2种方式,确认了总电量与分相电量累积错误的具体原因。依托高频曲线数据,重新通过积分方式准确复原了应计电量。

This paper introduces the online diagnosis model of wrong wiring.The model relies on high-frequency collected voltage,current,active power,reactive power and other data.Besides,it is Combined with big data analysis technology.So the reform of on-site power outage check to online diagnosis is realized.However,in the process of calculating the wrong amount of electricity,two kinds of metering logic errors of electricity meters were found,the specific reasons for the wrong accumulation of total electric quantity and phase-divided electric quantity were confirmed through data calculation and laboratory testing.Finally,relying on the high-frequency curve data,the accrued electricity is accurately restored by integrating again.