Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper

Rui Yu; Shanika Matharage; Zhongdong Wang

doi:10.1007/978-981-97-1068-3_87

Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper

Rui Yu, Shanika Matharage, Zhongdong Wang^*

^*Corresponding author for this work

EEE - Academic & Research

University of Exeter

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

Recent decades have witnessed rapid global application of the HVDC system in long distance electrical energy transmission or interconnection of different power networks. However, the failure rate of the HVDC system is higher than the conventional AC system. The high failure rate is mainly attributed to the malfunction of converter transformers under the AC plus DC working condition. Synthetic ester has emerged as an environmentally friendly alternative to traditional insulating liquids for their biodegradable/environmentally friendly nature and fire safety feature. Also, research indicated their potential of prolonging the lifetime of paper insulation. This paper assesses the applicability of ester in converter transformers from the perspective of conductivity, which is a crucial parameter for the design and maintenance of converter transformers. Experimental studies were designed to unravel the effect of electric field on the conductivity of the ester immersed Kraft paper. The test results indicated a positive correlation between short-term conductivity and the electric field, while long-term conductivity exhibited a non-linear trend.

Original language	English
Title of host publication	The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI
Editors	Qingxin Yang, Zewen Li, An Luo
Publisher	Springer Nature
Pages	832-837
Number of pages	6
ISBN (Print)	9789819710676
DOIs	https://doi.org/10.1007/978-981-97-1068-3_87
Publication status	Published - 2024
Event	18th Annual Conference of China Electrotechnical Society, ACCES 2023 - Nanchang, China Duration: 15 Sept 2023 → 17 Sept 2023

Publication series

Name	Lecture Notes in Electrical Engineering
Volume	1168 LNEE
ISSN (Print)	1876-1100
ISSN (Electronic)	1876-1119

Conference

Conference	18th Annual Conference of China Electrotechnical Society, ACCES 2023
Country/Territory	China
City	Nanchang
Period	15/09/23 → 17/09/23

Keywords

conductivity
Converter transformer
electric field
synthetic ester

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/978-981-97-1068-3_87

Cite this

Yu, R., Matharage, S., & Wang, Z. (2024). Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper. In Q. Yang, Z. Li, & A. Luo (Eds.), The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI (pp. 832-837). (Lecture Notes in Electrical Engineering; Vol. 1168 LNEE). Springer Nature. https://doi.org/10.1007/978-981-97-1068-3_87

@inproceedings{2324c0683080423da060359bce0888ad,

title = "Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper",

abstract = "Recent decades have witnessed rapid global application of the HVDC system in long distance electrical energy transmission or interconnection of different power networks. However, the failure rate of the HVDC system is higher than the conventional AC system. The high failure rate is mainly attributed to the malfunction of converter transformers under the AC plus DC working condition. Synthetic ester has emerged as an environmentally friendly alternative to traditional insulating liquids for their biodegradable/environmentally friendly nature and fire safety feature. Also, research indicated their potential of prolonging the lifetime of paper insulation. This paper assesses the applicability of ester in converter transformers from the perspective of conductivity, which is a crucial parameter for the design and maintenance of converter transformers. Experimental studies were designed to unravel the effect of electric field on the conductivity of the ester immersed Kraft paper. The test results indicated a positive correlation between short-term conductivity and the electric field, while long-term conductivity exhibited a non-linear trend.",

keywords = "conductivity, Converter transformer, electric field, synthetic ester",

author = "Rui Yu and Shanika Matharage and Zhongdong Wang",

note = "Publisher Copyright: {\textcopyright} Beijing Paike Culture Commu. Co., Ltd. 2024.; 18th Annual Conference of China Electrotechnical Society, ACCES 2023 ; Conference date: 15-09-2023 Through 17-09-2023",

year = "2024",

doi = "10.1007/978-981-97-1068-3_87",

language = "English",

isbn = "9789819710676",

series = "Lecture Notes in Electrical Engineering",

publisher = "Springer Nature",

pages = "832--837",

editor = "Qingxin Yang and Zewen Li and An Luo",

booktitle = "The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI",

address = "United States",

}

Yu, R, Matharage, S & Wang, Z 2024, Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper. in Q Yang, Z Li & A Luo (eds), The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI. Lecture Notes in Electrical Engineering, vol. 1168 LNEE, Springer Nature, pp. 832-837, 18th Annual Conference of China Electrotechnical Society, ACCES 2023, Nanchang, China, 15/09/23. https://doi.org/10.1007/978-981-97-1068-3_87

Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper. / Yu, Rui; Matharage, Shanika ; Wang, Zhongdong.
The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI. ed. / Qingxin Yang; Zewen Li; An Luo. Springer Nature, 2024. p. 832-837 (Lecture Notes in Electrical Engineering; Vol. 1168 LNEE).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper

AU - Yu, Rui

AU - Matharage, Shanika

AU - Wang, Zhongdong

N1 - Publisher Copyright: © Beijing Paike Culture Commu. Co., Ltd. 2024.

PY - 2024

Y1 - 2024

N2 - Recent decades have witnessed rapid global application of the HVDC system in long distance electrical energy transmission or interconnection of different power networks. However, the failure rate of the HVDC system is higher than the conventional AC system. The high failure rate is mainly attributed to the malfunction of converter transformers under the AC plus DC working condition. Synthetic ester has emerged as an environmentally friendly alternative to traditional insulating liquids for their biodegradable/environmentally friendly nature and fire safety feature. Also, research indicated their potential of prolonging the lifetime of paper insulation. This paper assesses the applicability of ester in converter transformers from the perspective of conductivity, which is a crucial parameter for the design and maintenance of converter transformers. Experimental studies were designed to unravel the effect of electric field on the conductivity of the ester immersed Kraft paper. The test results indicated a positive correlation between short-term conductivity and the electric field, while long-term conductivity exhibited a non-linear trend.

AB - Recent decades have witnessed rapid global application of the HVDC system in long distance electrical energy transmission or interconnection of different power networks. However, the failure rate of the HVDC system is higher than the conventional AC system. The high failure rate is mainly attributed to the malfunction of converter transformers under the AC plus DC working condition. Synthetic ester has emerged as an environmentally friendly alternative to traditional insulating liquids for their biodegradable/environmentally friendly nature and fire safety feature. Also, research indicated their potential of prolonging the lifetime of paper insulation. This paper assesses the applicability of ester in converter transformers from the perspective of conductivity, which is a crucial parameter for the design and maintenance of converter transformers. Experimental studies were designed to unravel the effect of electric field on the conductivity of the ester immersed Kraft paper. The test results indicated a positive correlation between short-term conductivity and the electric field, while long-term conductivity exhibited a non-linear trend.

KW - conductivity

KW - Converter transformer

KW - electric field

KW - synthetic ester

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PB - Springer Nature

T2 - 18th Annual Conference of China Electrotechnical Society, ACCES 2023

Y2 - 15 September 2023 through 17 September 2023

ER -

Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper

Abstract

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Keywords

UN SDGs

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