1000V多盘感应分压器标准建立  

Research on 1000V Multi-decade Inductive Voltage Divider Standard

作　　者：王维[1] 刘夏[1] 张欣[1] WANG Wei;LIU Xia;ZHANG Xin(National Institute of Metrology,Beijng 100029,China)

机构地区：[1]中国计量科学研究院电磁所,北京100029

出　　处：《计量学报》2020年第7期852-856,共5页Acta Metrologica Sinica

基　　金：国家重点研发计划(2016YFF0200105);国家自然科学基金面上项目(51877202)。

摘　　要：中国计量科学研究院研制了一台1000 V多盘感应分压器标准装置,用作工频1000 V电压比例标准。该装置使用了一种基于互感器注入的误差补偿技术,可准确提供从1×10^-8到1的宽范围比例输出。感应分压器的误差校验使用了包含三同轴屏蔽技术的改进型参考电势增量法,并设计了多比例参考互感器以便对感应分压器进行整体校验。所研制的感应分压器准确度优于1×10^-7,校准结果不确定度小于2×10^-8。A multi-decade 1000 V inductive voltage divider(IVD)was established at the National Institute of Metrology(NIM)in China to function as the 1000 V voltage ratio standard at the power frequency.It can provide a wide output ratio ranging from 1×10^-8 to 1.An error compensation method,based on the transformer injection,was introduced to improve the output ratio accuracy.An improved bootstrap calibration method with triaxial shielding was presented,and a multi-ratio reference transformer was designed to calibrate the multi-decade IVD for combinational usage.The accuracy of the mentioned IVD is better than 1×10^-7 and the calibration expanded uncertainty less than 2×10^-8.

关 键 词：计量学 电压比例标准 感应分压器 三同轴屏蔽 误差补偿 参考互感器 

分 类 号：TB971[一般工业技术—计量学]