Insulating Properties of c-C4F8/N2 and c-C4F8/CO2 Mixtures

MAN Linkun; DENG Yunkun; XIAO Dengming

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Insulating Properties of c-C₄F₈/N₂ and c-C₄F₈/CO₂ Mixtures

更新时间：2025-12-08

- Insulating Properties of c-C₄F₈/N₂ and c-C₄F₈/CO₂ Mixtures
- Vol. 43, Issue 3, Pages: 788-794(2017)
- 作者机构：
  
  1. 上海交通大学电气工程系
  2. 云南电网有限责任公司博士后工作站
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 March 2017，
  
  Published：2017
- 稿件说明：
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MAN Linkun, DENG Yunkun, XIAO Dengming. Insulating Properties of c-C₄F₈/N₂ and c-C₄F₈/CO₂ Mixtures[J]. 2017, 43(3): 788-794.
DOI：

MAN Linkun, DENG Yunkun, XIAO Dengming. Insulating Properties of c-C₄F₈/N₂ and c-C₄F₈/CO₂ Mixtures[J]. 2017, 43(3): 788-794. DOI：

摘要

为寻找温室效应指数（GWP）低的SF

替代气体

研究了c-C

与c-C

/CO

混合气体的绝缘性能

在球板电极下进行了不同间隙距离、不同气压、不同气体体积分数的c-C

与c-C

/CO

混合气体工频击穿实验。同时进行了SF

、c-C

、N

和CO

的对比实验

并对击穿之后的分解产物进行了检测。实验结果表明:c-C

与c-C

/CO

混合气体的击穿电压值都随着间隙距离、气压和c-C

体积分数的增加而增加;c-C

气体与N

、CO

之间均存在协同效应;稍不均匀场中0.1MPa气压下的c-C

体积分数为30%的c-C

与c-C

/CO

混合气体的绝缘性能分别约为SF

的75%和79%;5%

0%体积分数的c-C

与c-C

/CO

的协同效应系数分别在0.20

.79之间和0.15

.65之间。从绝缘性能、液化温度和环境保护等方面来看

c-C

与c-C

/CO

混合气体有可能作为SF

的替代气体

应用在电力设备中。

Abstract

To find a friendly alternative gas with low global warming potential（GWP） for SF

we investigated insulating properties of c-C

and c-C

/CO

mixtures.Meanwhile

experiments in a sphere-plate electrode were done in different gap distance

pressures

and gas ratio of c-C

and c-C

/CO

mixture gas under frequency AC voltage

compared with SF

c-C

and CO

in the same conditions.And the decomposition products were detected after breakdown.Experimental results show that the breakdown voltage of mixtures increases as the gas pressure/gap length/ratio of c-C

increases; there is a synergistic effect between c-C

and N

/CO

; In slightly nonuniform field

insulation performances of 30% c-C

and c-C

/CO

mixed gas are equal to 75% and 79% of pure SF

in 0.1 MPa; the synergistic effect coefficients of c-C

and c-C

/CO

in 5%

0% mixing ratio are between 0.20

.79 and 0.15

.65

respectively.From the insulating properties

liquefaction temperature standpoint and environment

c-C

and c-C

/CO

gas mixture may be used as an alternative for SF

gas in electrical equipment.

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