Lighting Impulse Withstand Performances of High-pressure CF<sub>3</sub>I-N<sub>2</sub> Gas Mixture and Its Application in GIL

谭东现; 周柏杰; 蔡凡一; 薛健; 肖登明

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Lighting Impulse Withstand Performances of High-pressure CF₃I-N₂ Gas Mixture and Its Application in GIL

更新时间：2025-12-08

- Lighting Impulse Withstand Performances of High-pressure CF₃I-N₂ Gas Mixture and Its Application in GIL
- Vol. 44, Issue 10, Pages: 3150-3157(2018)
- 作者机构：
  
  1. 上海交通大学电气系
  2. 南瑞集团有限公司(国网电力科学研究院有限公司)
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 October 2018，
  
  Published：2018
- 稿件说明：
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谭东现, 周柏杰, 蔡凡一, et al. Lighting Impulse Withstand Performances of High-pressure CF₃I-N₂ Gas Mixture and Its Application in GIL[J]. 2018, 44(10): 3150-3157.
DOI：

谭东现, 周柏杰, 蔡凡一, et al. Lighting Impulse Withstand Performances of High-pressure CF₃I-N₂ Gas Mixture and Its Application in GIL[J]. 2018, 44(10): 3150-3157. DOI：

摘要

作为应用广泛的绝缘气体

六氟化硫（SF6）会产生温室效应

环保特性不佳

因此寻找环保型替代气体成为高电压领域的研究热点。针对高压力下三氟碘甲烷（CF3I）和氮气的混合气体（CF3I-N2）开展了基础电极间隙的雷电冲击耐受特性研究

并与纯SF6、SF6-N2混合气体进行特性对比。在此基础上

采用气体绝缘管道母线（GIL）样机开展了CF3I-N2混合气体绝缘特性的验证试验。结果表明

高气压CF3I-N2混合气体具有较好的绝缘能力

但安全裕度相比纯SF6气体较低

为此针对样机进行了相应的电场优化改进

使最大电场强度降低了30%

提高了产品安全裕度。

Abstract

Sulfur hexafluoride（SF6）

as a widely used insulating gas

has extremely high performances. However

the severe greenhouse effect of SF6 makes it a poor environmental-friendly

thus the new research focuses on searching for the eco-friendly insulation substitutes. We experimentally investigated the lighting impulse voltage withstand performance of high pressure CF3 I-N2 gas mixture

and compared the properties of pure SF6 and SF6-N2 gas mixture under the same experimental conditions. Based on the fundamental result

a GIL equipment（designed for pure SF6 gas） was used to test insulation property of CF3 I-N2 gas mixture. The results show that high pressure CF3 I-N2 insulated GIL has less safety margin than pure SF6. For the purpose of increasing the safety margin

the optimized design on the insulation structure has been carried out to reduce the maximum electric field strength by 30%.

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Lighting Impulse Withstand Performances of High-pressure CF3I-N2 Gas Mixture and Its Application in GIL

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摘要

Abstract

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Lighting Impulse Withstand Performances of High-pressure CF₃I-N₂ Gas Mixture and Its Application in GIL