Electro-thermal and mechanical aspects of thermally aged cellulose insulation impregnated with nanofluids

被引：7
|
作者：
Jacob, Joyce [1 ,2 ]
Preetha, P. [1 ]
Sindhu, T. K. [1 ]
Rao, U. Mohan [3 ]
机构：
[1] Natl Inst Technol Calicut, Dept Elect Engn, Calicut, India
[2] Muthoot Inst Technol & Sci, Dept Elect & Elect Engn, Calicut, India
[3] Univ Quebec Chicoutimi, Dept Appl Sci, Chicoutimi, PQ 721, Canada
来源：
MEASUREMENT | 2023年 / 209卷
关键词：
Transformer; Nanofluid; Insulating liquid; Mineral oil; Natural ester; AC BREAKDOWN VOLTAGE; NATURAL ESTER; PAPER;
D O I：
10.1016/j.measurement.2023.112506
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Natural ester nanofluids offer improved dielectric and thermal properties than non-biodegradable mineral oil. In the present work, cellulose samples impregnated with unfilled and nanofilled mineral oil and ester are subjected to thermal aging at 130 degrees C for 168, 336, 504, and 1200 h under open beaker conditions. After 1200 h of thermal stress, the AC breakdown voltage, thermal conductivity, and tensile strength of natural ester impregnated cellulose is 36.13%, 0.46%, and 1.09 times higher than that of mineral oil impregnated cellulose samples, respectively. Also, the AC Breakdown voltage, thermal conductivity, and tensile strength of 0.02 wt% natural ester nanofluid impregnated cellulose is 37.81%, 1.7%, and 1.1 times higher than that of cellulose impregnated with 0.02 wt% mineral oil nanofluid, respectively. The present measurements demonstrate an improvement in the solid insulation performance with natural ester nanofluids, suggesting a possibility of extended service life of solid insulation in liquid filled high voltage transformers.
引用
收藏
页数：8
相关论文
共 50 条
  • [1] Algorithmic and modeling aspects in the electro-thermal simulation of thermally operated microsystems
    Rencz, M
    Székely, V
    Poppe, A
    Courtois, B
    [J]. NANOTECH 2003, VOL 2, 2003, : 476 - 479
  • [2] Model for electro-thermal aging of electrical insulation
    [J]. Laghari, J.R., 1600, (09): : 1 - 2
  • [3] Electro-Mechanical and Chemical Strength Analysis of Thermally Aged Nanofluid Impregnated Kraft Paper
    Maharana, Mrutyunjay
    Baruah, Niharika
    Nayak, Sisir Kumar
    Sahoo, Niranjan
    [J]. 2018 IEEE CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA (IEEE CEIDP), 2018, : 121 - 124
  • [4] A Combined Electro-Thermal Breakdown Model for Oil-Impregnated Paper
    Huang, Meng
    Zhou, Yuanxiang
    Zhou, Zhongliu
    Qi, Bo
    [J]. ENERGIES, 2017, 10 (12)
  • [5] Investigation on Insulation Performance of Thermally Aged Natural Ester Oil Impregnated Pressboard
    Thakur, Soumya
    Sarathi, Ramanujam
    [J]. IET SCIENCE MEASUREMENT & TECHNOLOGY, 2019, 13 (08) : 1194 - 1202
  • [6] Life curves for new and thermally aged oil-impregnated paper insulation
    Chmura, Lukasz
    Boorn, D. V. D.
    Morshuis, P. H. F.
    Smit, J. J.
    [J]. 2013 IEEE ELECTRICAL INSULATION CONFERENCE (EIC), 2013, : 45 - 48
  • [7] Modeling the electro-thermal response of thermally isolated micromachined distributed structures
    Socher, E
    Bochobza-Degani, O
    Elata, D
    Nemirovsky, Y
    [J]. NANOTECH 2003, VOL 1, 2003, : 384 - 387
  • [8] Electro-thermal and -mechanical model of thermal breakdown in multilayered dielectric elastomers
    Christensen, Line Riis
    Hassager, Ole
    Skov, Anne Ladegaard
    [J]. AICHE JOURNAL, 2020, 66 (08)
  • [9] Aspects of fabrication and characterization of electro-thermal micro-actuators
    de Godoy, Paulo Henrique
    Nelli Silva, Emilio Carlos
    [J]. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING, 2007, 29 (01) : 26 - 33
  • [10] MECHANICAL PERFORMANCE OF THERMALLY AGED TRAILING-CABLE INSULATION
    YENCHEK, MR
    KOVALCHIK, PG
    [J]. IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1989, 25 (06) : 1000 - 1005
12345