Complex Relative Permittivity Expressions of Oil-Paper Insulation for Low Frequency Domain Dielectric Response

被引：0
|
作者：
Wang D. [1 ]
Zhou L. [1 ]
Chen X. [1 ]
Liu W. [1 ]
Wang L. [1 ]
机构：
[1] College of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Zhou, Lijun (zhoulijun@swjtu.cn) | 2017年 / China Machine Press卷 / 32期
关键词：
Electrode polarization; Frequency domain dielectric response method; Oil-paper insulation system; XY model;
D O I：
10.19595/j.cnki.1000-6753.tces.160869
中图分类号：
学科分类号：
摘要：
Frequency domain dielectric response method has been one of the most effective approaches for the condition assessment of oil-paper insulation, and the low frequency part of the response is more effective for diagnosing the moisture content and aging status of oil-paper insulation.To facilitate the using of frequency dielectric domain dielectric response in engineering, the low frequency part dielectric response of oil-paper insulation system was studied in this paper.First, the electrode polarization of insulation dielectrics (oil-gap and oil-immersed paper) was analyzed when it is applied with low frequency excitations.Then, the complex relative permittivity expressions of insulation dielectric were obtained based on conductivity, ionic mobility and other parameters.On the basis of the geometric equivalent model (XY model) of oil-paper insulation system, the complex relative permittivity expressions of oil-paper insulation system for low frequency were obtained.Finally, the validity of established expressions about dielectric constants were testified by comparing the simulated and measured results.The results show that: the calculated complex relative permittivity can fit the measured results well, and the established expressions can effectively express the low frequency part dielectric response of oil-paper insulation system. © 2017, The editorial office of Transaction of China Electrotechnical Society. All right reserved.
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页码：218 / 224
页数：6
相关论文
共 24 条
  • [1] Yang L., Gao S., Gao J., Et al., Characteristic parameters extracted from modified Cole-Cole model and moisture content assessment methods study on frequency-domain dielectric spectroscopy of oil-paper insulation, Transactions of China Electrotechnical Society, 31, 10, pp. 26-33, (2016)
  • [2] Zou Y., Cai J., Experimental analysis on time-domain polarization spectrum of oil-paper insulation transformer, Transactions of China Electrotechnical Society, 30, 12, pp. 307-313, (2015)
  • [3] Saha T.K., Review of modern diagnostic techniques for assessing insulation condition in aged transformers, IEEE Transactions on Dielectrics and Electrical Insulation, 10, 5, pp. 903-917, (2003)
  • [4] Wen H., Ma Z., Wang Y., Et al., Experimental investigation and XY model simulation on the frequency domain spectroscopy characteristics of transformer oil-paper insulation, High Voltage Engineering, 38, 8, pp. 1956-1964, (2012)
  • [5] Chandima E., Gubanski S.M., Andrzej G., Et al., Frequency response of oil impregnated pressboard and paper samples for estimating moisture in transformer insulation, IEEE Transactions on Power Delivery, 21, 3, pp. 1309-1317, (2006)
  • [6] Gubanski S.M., Boss P., Csepes G., Et al., Dielectric response methods for diagnostics of power transformers, IEEE Electrical Insulation Magazine, 19, 3, pp. 12-18, (2003)
  • [7] Liu J., Wu G., Zhou L., Et al., Dielectric frequency response of oil-paper composite insulation with transient moisture equilibrium, Proceedings of the CSEE, 33, 1, pp. 171-178, (2013)
  • [8] Dong M., Liu Y., Ren M., Et al., Explanation study of frequency-domain dielectric spectroscopy for oil-paper insulation system, Proceedings of the CSEE, 35, 4, pp. 1002-1008, (2015)
  • [9] Setayeshmehr A., Fofana I., Eichler C., Et al., Dielectric spectroscopic measurements on transformer oil-paper insulation under controlled laboratory conditions, IEEE Transactions on Dielectrics and Electrical Insulation, 15, 4, pp. 1100-1111, (2008)
  • [10] Jaya M., Geissler D., Leibfried T., Accelerating dielectric response measurements on power transformers-part I: a frequency-domain approach, IEEE Transactions on Power Delivery, 28, 3, pp. 1469-1473, (2013)
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