Reliability Evaluation Method for Oil-Paper Insulation in Power Transformers

被引：33
|
作者：
Wang, Youyuan [1 ,2 ]
Gong, Senlian [1 ]
Grzybowski, Stanislaw [2 ]
机构：
[1] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
[2] Mississippi State Univ, High Voltage Lab, Dept Elect & Comp Engn, Mississippi State, MS 39762 USA
来源：
ENERGIES | 2011年 / 4卷 / 09期
关键词：
power transformers; oil-paper insulation; evaluation method; reliability test; Weibull distribution model; CELLULOSIC INSULATION; SERVICE TEMPERATURES; FURANIC COMPOUNDS; PART; DEGRADATION; POLYMERIZATION;
D O I：
10.3390/en4091362
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The overall life of oil-immersed power transformers depends on the long-term life of the oil-paper insulation system throughout continuous operation. Studying the reliability assessment methods for oil-paper insulation can help determine the reliability level of power transformers accurately, and ensure their safe and stable operation. In the present paper, the life of oil-paper insulation is proven to obey the Weibull distribution under eight different temperatures set by the Weibull reliability probability paper; the failure mechanisms of the different temperatures are highly consistent. The Weibull distribution reliability curve cluster of oil-paper insulation is plotted under different temperatures by which an oil-paper insulation reliability assessment method is proposed. Lastly, the statistical validation experiment of the proposed method is conducted, which proves its theoretical validity. Thus, the present study puts forward a simple and effective method for the oil-paper insulation reliability assessment of power transformers under different temperatures at different life stages.
引用
收藏
页码：1362 / 1375
页数：14
相关论文
共 50 条
  • [41] Importance of Depolarization Current in the Diagnosis of Oil-Paper Insulation of Power Transformer
    Kumar, Alok
    Mishra, Deepak
    Baral, Arijit
    IEEE ACCESS, 2023, 11 : 56858 - 56864
  • [42] A New Method for the Aging Evaluation of Oil-Paper Insulation Using n-Butanol and Methanol
    Wang, Jianyi
    Zhou, Yuanxiang
    Liu, Jun
    Wang, Zhaowei
    Bai, Song
    Lu, Jiayu
    CSEE JOURNAL OF POWER AND ENERGY SYSTEMS, 2024, 10 (02): : 717 - 726
  • [43] Influence of oil type on the oil-paper insulation properties
    Prosr, P.
    Polansky, R.
    Pihera, J.
    Trnka, P.
    2007 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, 2007, : 77 - 80
  • [44] Evaluation of transformer oil-paper insulation based on rough set theory
    Lin X.
    Cai J.
    Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control, 2019, 47 (07): : 22 - 29
  • [45] Research on method of frequency normalizing in frequency domain of oil-paper insulation
    Zhang M.-Z.
    Liu J.
    Lü J.-L.
    Chen Q.-G.
    Sun Y.-F.
    Qi P.-S.
    Chen X.
    Liu, Ji, 1600, Editorial Department of Electric Machines and Control (24): : 27 - 34
  • [46] Simulation and experimental study on frequency-domain dielectric spectroscopy of oil-paper insulation for transformers
    Liao, Rui-Jin
    Hao, Jian
    Yang, Li-Jun
    Liang, Shuai-Wei
    Ma, Zhi-Qin
    Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2010, 30 (22): : 113 - 119
  • [47] Raman Spectrum Characteristics and Aging Diagnosis of Oil-paper Insulation with Different Oil-paper Ratios
    Zhou, Yongkuo
    Chen, Weigen
    Yang, Dingkun
    Zhang, Ruyue
    IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2020, 27 (05) : 1587 - 1594
  • [48] Drying of already impregnated oil-paper insulation
    Nikoloski, LM
    Hristovski, DD
    IEEE 1996 ANNUAL REPORT - CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, VOLS I & II, 1996, : 178 - 181
  • [49] The assessment of oil-paper insulation condition based on frequency response method
    Liu, Jun
    Wu, Guang-ning
    Lv, Wei
    Zhou, Li-jun
    Min, Ying-jie
    2010 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTIC PHENOMENA, 2010,
  • [50] Influence of natural ester on thermal aging characteristics of oil-paper in power transformers
    Yang, Lijun
    Liao, Ruijin
    Sun, Caixin
    Sun, Huigang
    EUROPEAN TRANSACTIONS ON ELECTRICAL POWER, 2010, 20 (08): : 1223 - 1236
12345