电流互感器检定用测试设备的匹配问题  

Matching Problem of Test Equipment Used in Metrological Verification of Current Transformer

作　　者：卢嘉栋 LU Jia-dong(Shanxi Design and Research Institute of Mechanical and Electrical Engineering Co.,Ltd.,Taiyuan 030009,China)

机构地区：[1]山西省机电设计研究院有限公司,山西太原030009

出　　处：《机械工程与自动化》2021年第3期145-147,共3页Mechanical Engineering & Automation

摘　　要：检定电流互感器需要电压调节器、升流器、标准电流互感器、互感器校验仪和电流负荷箱等测试设备。首先电压调节器和升流器的电压和容量必须相当,相互匹配,二者的额定容量才能有效利用;其次,互感器校验仪工作回路负荷和差流回路附加负荷与标准器负荷能力必须匹配,特别是对于双级电流互感器的双级负荷作出了规定,以适用于电位差式校验仪或数显校验仪,符合检定规程的要求,从而保证电流互感器检定装置和系统的整体准确度。The metrological verification of current transformers requires testing equipment such as voltage regulators,large current generator,standard current transformers,transformer calibrators,and current load boxes.First of all,the voltage and capacity of the voltage regulator and the booster must be equal and matched with each other,so that the rated capacity of the two can be used effectively.Furthermore,the load of the working circuit of the transformer calibrator and the additional load of the differential circuit must match the load capacity of the standard device.In particular,regulations are made for the dual-stage load of the dual-stage current transformer,which is suitable for the potential difference calibrator or digital display calibrator,and meets the requirements of the verification regulations.So as to ensure the overall accuracy of the current transformer verification device and system.

关 键 词：电流互感器 检定 测试设备 匹配 

分 类 号：TM452[电气工程—电器]