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
  • [1] Effects of Moisture on Furfural Partitioning in Oil-Paper Insulation System and Aging Assessment of Power Transformers
    Lin, Yuandi
    Liao, Ruijin
    Tao, Fengbo
    Wei, Chao
    ELECTRIC POWER COMPONENTS AND SYSTEMS, 2019, 47 (1-2) : 192 - 199
  • [2] Effects of Temperature and Aging on Furfural Partitioning in the Oil-paper System of Power Transformers
    Yang, Lijun
    Lin, Yuandi
    Liao, Ruijin
    Zhao, Xuetong
    Sun, Weidong
    Zhang, Yiyi
    IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2016, 23 (03) : 1393 - 1401
  • [3] Raman Spectral Characteristics of Oil-Paper Insulation and Its Application to Ageing Stage Assessment of Oil-Immersed Transformers
    Zou, Jingxin
    Chen, Weigen
    Wan, Fu
    Fan, Zhou
    Du, Lingling
    ENERGIES, 2016, 9 (11)
  • [4] Effect of Moisture Content on the Production and Partitioning of Furfural in Oil-Paper Insulation
    Feng, Dawei
    Yang, Lijun
    Liao, Ruijin
    Zhou, Luowei
    Lin, Yuandi
    IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2018, 25 (06) : 2389 - 2397
  • [5] Study on Bubble Evolution in Oil-paper Insulation during Dynamic Rating in Power Transformers
    Gao, Meng
    Ding, Yuqin
    Wang, Tonglei
    Wen, Tao
    Zhang, Qiaogen
    2016 IEEE INTERNATIONAL POWER MODULATOR AND HIGH VOLTAGE CONFERENCE (IPMHVC), 2016, : 341 - 344
  • [6] Space charge and its effects on oil-paper insulation in power transformers: A review
    Raj, Raymon Antony
    JOURNAL OF ELECTROSTATICS, 2023, 126
  • [7] Direct optical techniques for the measurement of water content in oil-paper insulation in power transformers
    Rodriguez-Rodriguez, Joaquin H.
    Martinez-Pinon, Fernando
    Alvarez-Chavez, Jose A.
    Jaramillo-Vigueras, David
    Robles-Pimentel, Edgar G.
    MEASUREMENT SCIENCE AND TECHNOLOGY, 2011, 22 (06)
  • [8] An Optical SPR Sensor for Monitoring Accelerated Ageing of Oil-Paper Insulation of Transformers
    De Maria, L.
    Cice, L.
    Bartalesi, D.
    Borghetto, J.
    Tavakoli, A.
    Scatiggio, F.
    Gasparini, D.
    Pesavento, M.
    SENSORS AND MICROSYSTEMS, AISEM 2019, 2020, 629 : 287 - 292
  • [9] 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
  • [10] Methanol Equilibrium Curves of Power Transformer Oil-Paper Insulation
    Przybylek, Piotr
    ENERGIES, 2024, 17 (21)
12345