Study on Lightning Impulse Insulation Characteristics of Binary C4F7N and CO2 Mixture

HUO Peng; JIANG Xu; ZHANG Wenbing; ZHANG Jian; CHEN Zhibin; CAO Rui; XIN Zhaozhao

doi:10.13296/j.1001-1609.hva.2021.03.001

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Study on Lightning Impulse Insulation Characteristics of Binary C₄F₇N and CO₂ Mixture

更新时间：2025-04-26

- Study on Lightning Impulse Insulation Characteristics of Binary C₄F₇N and CO₂ Mixture
- High VoltageApparatus Vol. 57, Issue 3, Pages: 1-5(2021)
- 作者机构：
  
  1. 西安西电电气研究院有限责任公司
  2. 西安西电开关电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.03.001
  CLC： TM213
- Published：2021
- 稿件说明：
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[1]霍鹏,姜旭,张文兵,张建,陈志彬,曹蕤,辛昭昭.C_4F_7N/CO_2二元混合气体雷电冲击绝缘特性研究[J].高压电器,2021,57(03):1-5.

HUO Peng, JIANG Xu, ZHANG Wenbing, et al. Study on Lightning Impulse Insulation Characteristics of Binary C₄F₇N and CO₂ Mixture[J]. High voltageapparatus, 2021, 57(3): 1-5.
[1]霍鹏,姜旭,张文兵,张建,陈志彬,曹蕤,辛昭昭.C_4F_7N/CO_2二元混合气体雷电冲击绝缘特性研究[J].高压电器,2021,57(03):1-5. DOI： 10.13296/j.1001-1609.hva.2021.03.001.

HUO Peng, JIANG Xu, ZHANG Wenbing, et al. Study on Lightning Impulse Insulation Characteristics of Binary C₄F₇N and CO₂ Mixture[J]. High voltageapparatus, 2021, 57(3): 1-5. DOI： 10.13296/j.1001-1609.hva.2021.03.001.

摘要

替代气体在电力设备中的应用研究越来越广泛

其中氟化腈C

N被认为是目前最具潜力实现SF

替代的气体之一。文中结合隔离开关断口结构

研究了C

N/CO

二元混合气体的雷电冲击绝缘特性。基于混合气体绝缘试验平台

重点分析了气体种类

电压极性、充气气压、电极距离、C

N占比对50%击穿电压的影响规律。试验结果表明:在研究范围内

50%击穿电压随着充气气压、电极距离和C

N占比的增大均呈升高趋势。当充气气压升高到100、150、200 k Pa时

对应50%击穿电压（20:80

15 mm）分别为109.7、152.9、179.6 kV;当电极距离为5、10、15 mm时

50%击穿电压（35:65

200 k Pa）分别为73.4、138.5、203.0 kV;当C

N占比为20%、35%和50%时

50%击穿电压（15 mm

200 kPa）分别为180.0、203.0、218.4 kV。

Abstract

The study on application of alternative gas to SF

gas in the electrical equipment is becoming more andmore widespread

in which fluoronitrile gas（C

N）is considered presently as one of the most potential alternativegas to SF

.In this paper

the lightning impulse insulation characteristics of binary C

N/CO

mixture are studiedwith combination of the break structure of disconnector.Based on the insulating test platform of the mas mixture

therule of influence of kinds of gas

voltage polarity

filling pressure

electrodes distance and C

N proportion on 50%breakdown voltage is analyzed in particular.It is shown by the test result that 50%breakdown voltage tends to risewith the increase of gas filling pressure

electrode distance and C

N proportion.When the gas filling pressure ris-es to 100

150

200 k Pa

the corresponding 50%breakdown voltage（20:80

15 mm）is 109.7

152.9

179.6 kV

re-spectively.When electrode distance is 5

15 mm

the 50%breakdown voltage（35:65

200 kPa）is 73.4

138.5

203.0 kV

respectively.When C

N proportion is 20%

30% and 50%

the 50%breakdown voltage（15 mm

200 k Pa）is 180.0

203.0

218.4 kV

respectively.

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