工频电压加法的新线路及应用  

New Circuit and Application for Voltage Summation Method in Industrial Frequency

作　　者：王乐仁 

机构地区：[1]能源部武汉高压研究所,武汉430074

出　　处：《计量学报》1992年第3期221-225,共5页Acta Metrologica Sinica

摘　　要：本文提出一种互感器电压串联加法的新线路。两台同电压比的互感器分别在一次侧和二次侧串接,以此校验电压比相同、但额定电压为前者两倍的第3台互感器。新线路将使互感器检定机构可以独立地建立自己的工频电压比率标准,其准确度为2×10^(-5)～1×10^(-6)。A newly-developed circuit for voltage series summation method of transformers is described in this paper.Two voltage transformers with the same voltage ratio are connected in series on primmary and secondary respectively,thereby the third one,which has the same voltage ratio as the formers and double rated primmary voltage,can be calibrated.This technique is significant to the transformer calibration centers in setting up their own high voltage ratio standards of industrial frequency with the accuracy of 1 to 20 ppm.

关 键 词：电压 加法 工频 线路 互感器 

分 类 号：TM933.22[电气工程—电力电子与电力传动]