Influence of temperature on interfacial charge of power transformer insulation

被引：5
|
作者：
Dutta, Saurabh [1 ]
Mishra, Deepak [1 ]
Haque, Nasirul [2 ]
Pradhan, Arpan Kumar [2 ]
Baral, Arijit [1 ]
Chakravorti, Sivaji [2 ]
机构：
[1] Indian Inst Technol ISM, Dept Elect Engn, Dhanbad, Bihar, India
[2] Jadavpur Univ, Dept Elect Engn, Kolkata, India
来源：
IET SCIENCE MEASUREMENT & TECHNOLOGY | 2019年 / 13卷 / 07期
关键词：
transformer oil; polarisation; power transformer insulation; electric current measurement; insulation diagnosis; polarisation-depolarisation current; normal operation; oil-paper insulation; accumulated charges; PDC data; confinement; charge de-trapping; thermal energy content; measurement temperature; de-trapped charge; real-life power transformers; de-trapped interfacial charge; PDC measurement; OIL-PAPER INSULATION; DIELECTRIC LOSSES; ELECTRIFICATION; BEHAVIOR;
D O I：
10.1049/iet-smt.2018.5668
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
One of the popular methods for insulation diagnosis is measurement and analysis of polarisation-depolarisation current (PDC). During normal operation, charges get confined at the interface of oil-paper insulation. A part of these accumulated charges get absorbed in depolarisation current and contribute to the overall PDC data. The process through which charges are released from their confinement is known as charge de-trapping, which is highly influenced by thermal energy content of the insulation and hence by measurement temperature. In the current work, an effort has been made to investigate the effect of measurement temperature on de-trapped charge. Two samples are prepared and analysed in the laboratory at different temperatures for this purpose. This is followed by analysis of data collected from several real-life power transformers. Related analysis presented here suggests that measurement temperature of the system plays an important role in determining the amount of de-trapped interfacial charge during PDC measurement.
引用
收藏
页码：1059 / 1067
页数：9
相关论文
共 50 条
  • [1] Effect of Interfacial charge on Parameters Considered for Insulation Diagnosis of Power Transformer
    Mishra, D.
    Baral, A.
    Pradhan, A. K.
    Haque, N.
    Chakravorti, S.
    [J]. 2017 IEEE CALCUTTA CONFERENCE (CALCON), 2017, : 120 - 124
  • [2] Investigation related to performance parameter estimation of power transformer insulation using interfacial charge
    Mishra, D.
    Verma, R.
    Baral, A.
    Chakravorti, S.
    [J]. IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2020, 27 (04) : 1247 - 1255
  • [3] Influence of De-Trapped Charge Polarity in Sensing Health of Power Transformer Insulation
    Banerjee, Chandra Madhab
    Baral, Arijit
    Chakravorti, Sivaji
    [J]. IEEE SENSORS JOURNAL, 2022, 22 (07) : 6706 - 6716
  • [4] Use of Interfacial Charge for Diagnosis and Activation Energy Prediction of Oil-Paper Insulation Used in Power Transformer
    Mishra, Deepak
    Dutta, Saurabh
    Baral, Arijit
    Haque, Nasirul
    Chakravorti, Sivaji
    [J]. IEEE TRANSACTIONS ON POWER DELIVERY, 2019, 34 (04) : 1332 - 1340
  • [5] The influence of oil speed and temperature on PD phenomena in transformer insulation
    Azcarraga, C. G.
    Cavallini, A.
    Montanari, G. C.
    [J]. CONFERENCE RECORD OF THE 2012 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATION (ISEI), 2012, : 494 - 497
  • [6] Diagnosis of power transformer insulation
    Gockenbach, E.
    [J]. ICPASM 2005: Proceedings of the 8th International Conference on Properties and Applications of Dielectric Materials, Vols 1 and 2, 2006, : 234 - 237
  • [7] CORONA IN POWER TRANSFORMER INSULATION
    NORRIS, ET
    [J]. ELECTRICAL REVIEW, 1969, 185 (09): : 305 - &
  • [8] Influence of Temperature and Moisture on Aging Degree of Transformer Oil Paper Insulation
    Gao, Tianchu
    [J]. 2018 9TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING, MATERIALS AND MACHINERY (ICCEMM 2018), 2018, : 9 - 16
  • [9] Feasibility of using Normalized De-trapped Charge for Diagnosis of Power Transformer Insulation
    Mishra, D.
    Baral, A.
    Haque, N.
    Chakravorti, S.
    [J]. 2018 IEEE PES ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), 2018,
  • [10] Assessment of power transformer insulation condition
    Sokolov, V
    Bulgakova, V
    Berler, Z
    [J]. ELECTRICAL INSULATION CONFERENCE AND ELECTRICAL MANUFACTURING & COIL WINDING CONFERENCE, PROCEEDINGS, 2001, : 605 - 613
12345