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Establishment of National Voltage Ratio Standard for 1000kV at Power Frequency Based on the Series Voltage Summation |
ZHOU Feng1,2,YUE Chang-xi2,LEI Min2,WANG Le-ren2,JIANG Chun-yang2 |
1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
2. China Electric Power Research Institute, National Center for High Voltage Measurement,Wuhan, Hubei 430074,China |
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Abstract Based on a specially designed 1000kV series standard voltage transformer with high accuracy of 0.01 level,an experiment of 1000kV power frequency voltage summation is finished successfully by National Center for High Voltage Measurement .The experimental results show that the uncertainties of measurement of voltage ratio error and phase difference are not more than 2×10-5 and 0.06′ respectively. Compared the results by the traditional voltage coefficient measuring method with an 800kV compressed gas capacitors, the maximum deviation of voltage ratio error and phase difference is 2.7×10-5 and 0.11′ respectively.And neither of the maximum deviations exceeds 90% confidence interval of values of the two methods.
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[1]So E, Latzel H G. NRC-PTB Intercomparison of Voltage Transformer Calibration Systems for High Voltage at 60Hz, 50Hz, and 16.66Hz[J]. IEEE transactions on instrumentation and measurement, 2001, 50(2): 419-421.
[2]Latzel H G, Wang L. A voltage-doubling method for measuring the voltage dependence of compressed gas capacitors[J].IEEE Trans IM,1987,36(3):730-734.
[3]周峰,郑汉军,雷民,等.特高压串联式标准电压互感器的研制[J].高电压技术,2009,35(3):464-468.
[4]Lei M, Zhou F, Zheng H J. Research on 1000kV Series Standard Potential Transformer [C]// International Conference on Electrical Machines and Systems,Wuhan, 2008.
[5]王乐仁. 电容式工频高压比例标准器的原理与应用(续四)[J].高电压技术,2002,28(4):14-15.
[6]赵保旺,高广淦. 用双频法测量低压空气电容器的电压系数[J]. 计量学报,1991,12(2):131-138.
[7]JJF1067—2000,工频电压比例标准装置校准规范[S].
[8]周峰,郑汉军,雷民.特高压串联式TV高压隔离部分的有限元分析及优化设计[J].高电压技术,2007,33(12):5-8.
[9]王乐仁.工频电压加法的新线路及应用[J].计量学报, 1992,13(3): 221-225.
[10]雷民,周峰.1000kV串联式标准TV的量值溯源及稳定性[J]. 高电压技术,2010,36(1):98-102.
[11]JJG 314—2010,测量用电压互感器检定规程[S].
[12]周峰,雷民. QSJ8新型校验仪在1000kV标准TV量值溯源中的应用[J].电测与仪表,2009,46(10):27-30. |
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