TR-Ⅱ型三相组合电压互感器溯源方式分析及测量结果评定  

Traceability Analysis and Measurement Results Evaluation of TR-Ⅱ Three-phase Combined Voltage Transformer

作　　者：刘罡 李诗宇 周浩 刘志同[3] 房琛 LIU Gang;LI Shiyu;ZHOU Hao;LIU Zhitong;FANG Chen(Electric Power Research Institute of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110006,China;State Grid Liaoning Maintenance Company,Shenyang,Liaoning 110006,China;State Grid Shenyang Power Supply Company,Shenyang,Liaoning 110003,China;Dalian Electric Power Construction Engineering Co.,Ltd.,Dalian,Liaoning 116021,China)

机构地区：[1]国网辽宁省电力有限公司电力科学研究院,辽宁沈阳110006 [2]国网辽宁省电力有限公司检修分公司,辽宁沈阳110006 [3]国网沈阳供电公司,辽宁沈阳110003 [4]大连电力建筑工程公司,辽宁大连116021

出　　处：《东北电力技术》2018年第9期21-23,26,共4页Northeast Electric Power Technology

摘　　要：TR-Ⅱ型三相组合电压互感器可进行变压比电桥的三相检定,对三相组合电压互感器的溯源原理进行分析,以标准感应分压器为标准器校准三相组合电压互感器,对8个组别总结出6种接线方法。从3个方面对校准结果不确定度进行评定,按照测量仪器特性要求对符合性进行评定,U_(95)与MPEV之比小于1/3,可忽略不确定度对测量结果影响,简化测量流程,为变压比电桥其他主标准器的溯源研究打下良好基础。TR-II three-phase combined voltage transformer can carry out three phase calibration of transformer ratio bridge.The traceability principle of three phase combined voltage transformer is analyzed.We calibrate three phase combined voltage transformer with standard induction voltage divider as the standard.We summarize 6 wiring methods for 8 wiring groups.We evaluate the uncertainty of calibration results from three aspects and also evaluate the conformity according to the requirements of the measuring instruments.The ratio of U95 to MPEV is less than 1/3,so that the influence of uncertainty on the measurement results can be ignored which can simplify the measurement process and lay a good foundation for tracing the origin of other main standards of transformer ratio bridge.

关 键 词：三相组合电压互感器 标准感应分压器 不确定度评定 符合性评定 变压比电桥 

分 类 号：TM451[电气工程—电器]