Research on Insulation Performance of a New CF3OCF=CF2 Alternative Gas to SF6

ZHANG Boya; TANG Nian; SUN Dongwei; YAO Yuyang; LYU Jian; ZENG Jijun; ZHAO Bo; MA Yiding; LI Xingwen; GAO Wenqiang

doi:10.13296/j.1001-1609.hva.2025.02.019

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Research on Insulation Performance of a New CF₃OCF=CF₂ Alternative Gas to SF₆

Research & Analysis | 更新时间：2025-05-25

- Research on Insulation Performance of a New CF₃OCF=CF₂ Alternative Gas to SF₆
- High Voltage Apparatus Vol. 61, Issue 2, Pages: 165-170(2025)
- 作者机构：
  
  1.西安交通大学电工材料电气绝缘全国重点实验室，西安　 710049
  2.广东电网有限责任公司电力科学研究院，广州　 510080
  3.西安近代化学研究所，西安　 710065
  4.美国康涅狄格大学电气与计算机工程系，美国　康涅狄格　 06269
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China(2022YFE0129500);Science & Technology Project of China Southern Power Grid Co.(GDKJXM20220361);National Natural Science Foundation of China(52277162)
- DOI：10.13296/j.1001-1609.hva.2025.02.019
  CLC：
- Received：16 October 2024，
  
  Revised：19 December 2024，
  
  Published：16 February 2025
- 稿件说明：
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ZHANG Boya, TANG Nian, SUN Dongwei, et al. Research on Insulation Performance of a New CF₃OCF=CF₂ Alternative Gas to SF₆[J]. High voltage apparatus, 2025, 61(2): 165-170.
DOI：

ZHANG Boya, TANG Nian, SUN Dongwei, et al. Research on Insulation Performance of a New CF₃OCF=CF₂ Alternative Gas to SF₆[J]. High voltage apparatus, 2025, 61(2): 165-170. DOI： 10.13296/j.1001-1609.hva.2025.02.019.

摘要

高压电力设备中大量使用的六氟化硫（SF

）气体具有极强的温室效应，在“双碳”目标驱动下，研究新型环保SF

替代气体是目前电力行业的紧迫任务。首先通过高通量虚拟筛选出170个潜在的SF

替代气体，建立了由19个化合物组成的潜在绝缘替代气体库，发现全氟甲基乙烯基醚（CF

OCF=CF

）气体综合性能良好，绝缘强度较高，沸点约为-22 ℃，GWP小于1。接着重点针对CF

OCF=CF

气体的绝缘性能，开展了脉冲汤逊实验及雷电冲击击穿实验。实验结果表明，CF

OCF=CF

气体相对SF

的绝缘强度大概为0.96~1.02。因此，从CF

OCF=CF

气体绝缘性能的角度来看，具有替代SF

的潜力，验证了虚拟筛选方法的可行性。文中工作有力推动了新型环保绝缘气体的理论探索和创新发展。

Abstract

Sulfur hexafluoride (SF

) gas

which is widely used in high-voltage power equipment

has a strong greenhouse effect. Driven by the goal of ‘double carbon’

it is an urgent task for the power industry to study new environmentally friendly SF

alternative gas. Firstly

170 potential alternative gases to SF

are screened by high-throughput virtual screening

and a potential insul

ating alternative gas database consisting of 19 compounds is set up. It is found that CF

OCF=CF

gas has good comprehensive properties

high insulation strength

with boiling point about -22 ℃ and GWP is less than 1. Then

focusing on the insulation properties of CF

OCF=CF

gas

the pulsed Townsend experiment and lightning impact breakdown experiment are performed. The experimental results show that the insulation strength of CF

OCF=CF

gas is about 0.96~1.02 that of SF

. Therefore

from the perspective of insulation performance of CF

OCF=CF

gas

it has the potential to replace SF

which verifies the feasibility of the virtual screening method. The work in this paper has strongly promoted the theoretical exploration and innovative development of new environmentally friendly insulating gases.

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