摘要
数字化变电站在我国已逐渐进入推广应用阶段,急需对数字电能计量装置整体准确度及其长期运行特性进行研究。本项目在同一个计量点同时建立了数字计量系统和传统计量系统,形成长期在线运行比对系统。通过现场检测和理论计算得到综合偏差后,与实际电量偏差进行数值比较,以此论证数字电能计量装置。
Digital substation steps into application stage,however,research of total system accuracy of metering devices（including electronic instrument transformers and digital electric meter） and its long term operating characteristics is rare.This article introduces a technology of building on site and long term comparison between digital metering system and conventional metering system in order to find out the major factors influencing digital metering system′s accuracy.
出处
《电测与仪表》
北大核心
2010年第8期27-31,共5页
Electrical Measurement & Instrumentation
关键词
数字化变电站
长期运行特性
误差
digital substation
long term operating characteristics
error
