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
Place of Publication	Singapore
Publisher	Springer Nature
Pages	832-837
Number of pages	6
Volume	VI
ISBN (Electronic)	9789819710683
ISBN (Print)	9789819710676, 9789819710744
DOIs	https://doi.org/10.1007/978-981-97-1068-3_87
Publication status	Published - 13 Mar 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
Publisher	Springer
Volume	1168
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

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

conductivity
converter transformer
electric field
synthetic ester

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 (Vol. VI, pp. 832-837). (Lecture Notes in Electrical Engineering; Vol. 1168). 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",

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

language = "English",

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volume = "VI",

series = "Lecture Notes in Electrical Engineering",

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}

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. vol. VI, Lecture Notes in Electrical Engineering, vol. 1168, Springer Nature, Singapore, 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. Vol. VI Singapore: Springer Nature, 2024. p. 832-837 (Lecture Notes in Electrical Engineering; Vol. 1168).

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 - 2024/3/13

Y1 - 2024/3/13

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.

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KW - converter transformer

KW - electric field

KW - synthetic ester

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T3 - Lecture Notes in Electrical Engineering

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BT - The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI

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A2 - Li, Zewen

A2 - Luo, An

PB - Springer Nature

CY - Singapore

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

Y2 - 15 September 2023 through 17 September 2023

ER -

Yu R, Matharage S , Wang Z. Effect of Electric Field on Conductivity of Synthetic Ester Immersed Kraft Paper. In Yang Q, Li Z, Luo A, editors, The Proceedings of the 18th Annual Conference of China Electrotechnical Society - Volume VI. Vol. VI. Singapore: Springer Nature. 2024. p. 832-837. (Lecture Notes in Electrical Engineering). Epub 2024 Mar 11. doi: 10.1007/978-981-97-1068-3_87

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

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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