Investigation on the Surface Flashover Characteristics of Epoxy Composites in C4F7N/CO2Mixture

Jinshu Li; Junhong Chen; Junhao Dong; Peng Sun; Junbo Deng; Guan Jun Zhang

doi:10.1109/AEEES54426.2022.9759730

Investigation on the Surface Flashover Characteristics of Epoxy Composites in C₄F₇N/CO₂Mixture

Jinshu Li
, Junhong Chen
, Junhao Dong
, Peng Sun
, Junbo Deng
, Guan Jun Zhang

School of Electrical Engineering

Xi'an Jiaotong University

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

2 Scopus citations

Abstract

Although SF6 is widely used in electrical apparatus, it has a strong greenhouse effect, so it is necessary to find alternative gases. C4F7N/CO2 mixture, as a potential substitute, has been widely concerned by researchers. The long-term working insulation performance of C4F7N, especially the surface insulation, still needs more research. In this paper, two types of spacers are used to study the surface flashover characteristics in C4F7N/CO2 mixture. It is found that the flashover voltage of the plate spacer in 10% C4F7N /90%CO2 mixture is lower than SF6. When the C4F7N content increases from 5% to 20%, the surface flashover voltage of the downsized GIL basin spacer increases and C4F7N/CO2 mixture has obvious synergistic and polar effect. If the voltage is applied for ten minutes in advance, the homo-charges increase the surface flashover voltage, while the hetero-charges reduce the surface flashover voltage to a certain extent.

Original language	English
Title of host publication	2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	6-10
Number of pages	5
ISBN (Electronic)	9781665479141
DOIs	https://doi.org/10.1109/AEEES54426.2022.9759730
State	Published - 2022
Event	4th Asia Energy and Electrical Engineering Symposium, AEEES 2022 - Chengdu, China Duration: 25 Mar 2022 → 28 Mar 2022

Publication series

Name	2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022

Conference

Conference	4th Asia Energy and Electrical Engineering Symposium, AEEES 2022
Country/Territory	China
City	Chengdu
Period	25/03/22 → 28/03/22

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

CFN /CO
GIL downsized spacer
flashover characteristics
plate spacer
surface charge accumulation

Access to Document

10.1109/AEEES54426.2022.9759730

Cite this

Li, J., Chen, J., Dong, J., Sun, P., Deng, J., & Zhang, G. J. (2022). Investigation on the Surface Flashover Characteristics of Epoxy Composites in C₄F₇N/CO₂Mixture. In 2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022 (pp. 6-10). (2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/AEEES54426.2022.9759730

@inproceedings{a4807fcbbf104dee8b145cf9c724838d,

title = "Investigation on the Surface Flashover Characteristics of Epoxy Composites in C4F7N/CO2Mixture",

abstract = "Although SF6 is widely used in electrical apparatus, it has a strong greenhouse effect, so it is necessary to find alternative gases. C4F7N/CO2 mixture, as a potential substitute, has been widely concerned by researchers. The long-term working insulation performance of C4F7N, especially the surface insulation, still needs more research. In this paper, two types of spacers are used to study the surface flashover characteristics in C4F7N/CO2 mixture. It is found that the flashover voltage of the plate spacer in 10\% C4F7N /90\%CO2 mixture is lower than SF6. When the C4F7N content increases from 5\% to 20\%, the surface flashover voltage of the downsized GIL basin spacer increases and C4F7N/CO2 mixture has obvious synergistic and polar effect. If the voltage is applied for ten minutes in advance, the homo-charges increase the surface flashover voltage, while the hetero-charges reduce the surface flashover voltage to a certain extent.",

keywords = "CFN /CO, GIL downsized spacer, flashover characteristics, plate spacer, surface charge accumulation",

author = "Jinshu Li and Junhong Chen and Junhao Dong and Peng Sun and Junbo Deng and Zhang, \{Guan Jun\}",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022 ; Conference date: 25-03-2022 Through 28-03-2022",

year = "2022",

doi = "10.1109/AEEES54426.2022.9759730",

language = "英语",

series = "2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Li, J, Chen, J, Dong, J, Sun, P, Deng, J & Zhang, GJ 2022, Investigation on the Surface Flashover Characteristics of Epoxy Composites in C₄F₇N/CO₂Mixture. in 2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022. 2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022, Institute of Electrical and Electronics Engineers Inc., pp. 6-10, 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022, Chengdu, China, 25/03/22. https://doi.org/10.1109/AEEES54426.2022.9759730

Investigation on the Surface Flashover Characteristics of Epoxy Composites in C₄F₇N/CO₂Mixture. / Li, Jinshu; Chen, Junhong; Dong, Junhao et al.
2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022. Institute of Electrical and Electronics Engineers Inc., 2022. p. 6-10 (2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022).

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

TY - GEN

T1 - Investigation on the Surface Flashover Characteristics of Epoxy Composites in C4F7N/CO2Mixture

AU - Li, Jinshu

AU - Chen, Junhong

AU - Dong, Junhao

AU - Sun, Peng

AU - Deng, Junbo

AU - Zhang, Guan Jun

PY - 2022

Y1 - 2022

N2 - Although SF6 is widely used in electrical apparatus, it has a strong greenhouse effect, so it is necessary to find alternative gases. C4F7N/CO2 mixture, as a potential substitute, has been widely concerned by researchers. The long-term working insulation performance of C4F7N, especially the surface insulation, still needs more research. In this paper, two types of spacers are used to study the surface flashover characteristics in C4F7N/CO2 mixture. It is found that the flashover voltage of the plate spacer in 10% C4F7N /90%CO2 mixture is lower than SF6. When the C4F7N content increases from 5% to 20%, the surface flashover voltage of the downsized GIL basin spacer increases and C4F7N/CO2 mixture has obvious synergistic and polar effect. If the voltage is applied for ten minutes in advance, the homo-charges increase the surface flashover voltage, while the hetero-charges reduce the surface flashover voltage to a certain extent.

AB - Although SF6 is widely used in electrical apparatus, it has a strong greenhouse effect, so it is necessary to find alternative gases. C4F7N/CO2 mixture, as a potential substitute, has been widely concerned by researchers. The long-term working insulation performance of C4F7N, especially the surface insulation, still needs more research. In this paper, two types of spacers are used to study the surface flashover characteristics in C4F7N/CO2 mixture. It is found that the flashover voltage of the plate spacer in 10% C4F7N /90%CO2 mixture is lower than SF6. When the C4F7N content increases from 5% to 20%, the surface flashover voltage of the downsized GIL basin spacer increases and C4F7N/CO2 mixture has obvious synergistic and polar effect. If the voltage is applied for ten minutes in advance, the homo-charges increase the surface flashover voltage, while the hetero-charges reduce the surface flashover voltage to a certain extent.

KW - CFN /CO

KW - GIL downsized spacer

KW - flashover characteristics

KW - plate spacer

KW - surface charge accumulation

UR - https://www.scopus.com/pages/publications/85129583909

U2 - 10.1109/AEEES54426.2022.9759730

DO - 10.1109/AEEES54426.2022.9759730

M3 - 会议稿件

AN - SCOPUS:85129583909

T3 - 2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022

SP - 6

EP - 10

BT - 2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022

Y2 - 25 March 2022 through 28 March 2022

ER -

Li J, Chen J, Dong J, Sun P, Deng J, Zhang GJ. Investigation on the Surface Flashover Characteristics of Epoxy Composites in C₄F₇N/CO₂Mixture. In 2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022. Institute of Electrical and Electronics Engineers Inc. 2022. p. 6-10. (2022 4th Asia Energy and Electrical Engineering Symposium, AEEES 2022). doi: 10.1109/AEEES54426.2022.9759730