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《JOURNAL OF SHANTOU UNIVERSITY(NATURAL SCIENCE EDITION)》 1995-01
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Measurement and design calculation of the iron core of current transformer

Wu Jiyang;Wang Jicheng(Department of Physics,Shantou University, Shantou, 515063)Lin Fangrui(Shantou Instrument Transformer Factory, Shautou, 515021 )  
In this paper is presented a detailed illustration for a more efficient way to test the iron core of current transformer. In this method, the resistance of the secondary coil is measured for the calculation of the total impedance of the secondary circuit so as to find out the voltage drop of a given current when passing through that impedance.The voltage drop thus obtained is to be divided by the number of turns of the secondary coil in order to find out the induced emf per turn. With both the exciting current and the loss angle of a single turn measured, the design calculation for current transformer of any technical class is finished smoothly.
【CateGory Index】: TM452
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【Co-citations】
Chinese Journal Full-text Database 7 Hits
1 ;Compensation Method for Inflenece of Secondary Voltae on Electrical Energy Mertering[J];High Voltage Engineering;2001-01
2 WU Liang-ke,LIU Hao,YUE Chang-xi,ZHANG Shu-han,WANG Le-ren(State Grid Electric Power Research Institute,Wuhan 430074,China);Secondary Burden Simulation Method of On-site Error Calibration Test for Current Transformers[J];High Voltage Engineering;2010-08
3 ZHENG Han-jun1,WU Liang-ke1,LEI Min1,SUN Hao-liang1,MA Ping2,SUN Jian3(1.State Grid Electric Power Research Institute,Wuhan 430074,China. 2.Tianjin Electric Power Construction Company Nuclear Project Department,Shenzhen 518120,Guangdong,China. 3.DAYA BAY Nuclear Power Operation and Management Company,Shenzhen 518120,Guangdong,China);Application of Parallel and Equal Ampere Turns Method on Field Error Calibration GTA[J];Electrical Measurement & Instrumentation;2010-12
4 Yuan Jianzhou1 Ai Chaoping2 Li Yanming3 Tian Jianhua4(1.Henan Society for Electrical Engineering,Zhengzhou 450052;2.Henan Power Grid Construction Management Company,Zhengzhou 450007;3.Xi'an Jiaotong University,Xi'an 710049;4.Zheng Zhou Electric Power College,Zhengzhou 450004);Small current precision sensor based on zero-flux[J];Electronic Measurement Technology;2011-02
5 FAN Rong(Waterborne Transportation Institue,Ministry of Transport,Beijing 100088,China);Application of Comprehensive Relay Protection in 10kV Power Supply System[J];Transport Standardization;2010-21
6 Cui Hong(Shanxi Provincial Institute of Metrology,Taiyuan Shanxi 030002,China);Analysis of Common Problem on Laboratory Testing of Current Transformer Error[J];Shanxi Electronic Technology;2010-05
7 ZHAO Xin(Shanxi Design and Research Institute of Mechanical and Electrical Engineering,Taiyuan 030009,China);Design of Casting Machine for Current Transformers[J];Mechanical Engineering & Automation;2010-06
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