Home Journals Articles Updates About
CN
image
收藏切换
Accelerated ageing characteristics of mineral insulating oil-impregnated paper in natural esters
收藏切换
PDF
Weijia HUANG1, Jia LI1, Guoqin WANG1, Xuzhao LIN1, Ting HU2, Qingru ZHANG3, Weimin GUAN3
Insulating Materials | 2023, 56(8) : 32 - 36
Less
收藏切换
Insulating Materials | 2023, 56(8): 32-36
• Material Research •
Accelerated ageing characteristics of mineral insulating oil-impregnated paper in natural esters
Full
Weijia HUANG1, Jia LI1, Guoqin WANG1, Xuzhao LIN1, Ting HU2, Qingru ZHANG3, Weimin GUAN3
Affiliations
  • 1Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou 510000, China
  • 2Wuhan ZD New Materials Co., Ltd., Wuhan 430074, China
  • 3Wuhan University, Wuhan 430072, China
Published: 2023-08-20 doi: 10.16790/j.cnki.1009-9239.im.2023.08.005
Outline
收藏切换

The distribution transformers serving in the distribution network of urban villages have been in heavy overload operation for a long time, and the number of transformers approaching or even exceeding their design life is increasing. Prolonging their service life by replacing natural ester insulating oil is a feasible method of life extension. In this paper, the thermal ageing characteristic of aged mineral insulating oil-impregnated paper in natural ester was tested to analyze the pyrolysis characteristics of cellulose. Then the residual life of oil-impregnated paper after replacing natural ester was predicted by the pyrolysis kinetic model of oil-impregnated paper cellulose. The results show that the influence of the residual mineral insulating oil in the oil-impregnated paper on the pyrolysis process of cellulose after replacing the natural ester can be ignored. The moisture content of insulating paper is an important factor affecting its pyrolysis reaction, and the replacement of natural ester can significantly decrease the moisture content of insulating paper and delay the pyrolysis rate of insulating paper cellulose.

natural ester  /  distribution transformer  /  accelerated ageing  /  life
Weijia HUANG, Jia LI, Guoqin WANG, Xuzhao LIN, Ting HU, Qingru ZHANG, Weimin GUAN. Accelerated ageing characteristics of mineral insulating oil-impregnated paper in natural esters[J]. Insulating Materials, 2023 , 56 (8) : 32 -36 . DOI: 10.16790/j.cnki.1009-9239.im.2023.08.005
Appendix
Less
Year 2023 volume 56 Issue 8
PDF
132
61
Cite this Article
BibTeX
Article Info
doi: 10.16790/j.cnki.1009-9239.im.2023.08.005
  • Receive Date：2022-09-22
  • Online Date：2025-11-24
  • Published：2023-08-20
Article Data
Affiliations
History
  • Received：2022-09-22
  • Revised：2022-11-04
Funding
Affiliations
    1Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou 510000, China
    2Wuhan ZD New Materials Co., Ltd., Wuhan 430074, China
    3Wuhan University, Wuhan 430072, China
References
Share
https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.08.005
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House