Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco-friendly C-GIS

doi:10.13296/j.1001-1609.hva.2019.04.004

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Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco-friendly C-GIS

更新时间：2025-04-26

- Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco-friendly C-GIS
- High VoltageApparatus Vol. 55, Issue 4, Pages: 25-30(2019)
- 作者机构：
  
  1. 上海海洋大学
  2. 南瑞集团公司(国网电力科学研究院有限公司)
  3. 上海交通大学电气系
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.04.004
  CLC： TM595;TM643
- Published：2019
- 稿件说明：
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[1]李红梅,周柏杰,谭东现,薛健,蔡凡一,肖登明.用于环保型C-GIS的氮气及干燥空气正极性雷电冲击特性研究[J].高压电器,2019,55(04):25-30.

Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco-friendly C-GIS[J]. High voltageapparatus, 2019, 55(4): 25-30.
[1]李红梅,周柏杰,谭东现,薛健,蔡凡一,肖登明.用于环保型C-GIS的氮气及干燥空气正极性雷电冲击特性研究[J].高压电器,2019,55(04):25-30. DOI： 10.13296/j.1001-1609.hva.2019.04.004.

Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco-friendly C-GIS[J]. High voltageapparatus, 2019, 55(4): 25-30. DOI： 10.13296/j.1001-1609.hva.2019.04.004.

摘要

采用氮气或干燥空气替代SF6作为绝缘介质是目前环保型柜式气体绝缘金属封闭开关设备（C-GIS）的研究热点。要保证气箱内部结构紧凑、小型化的特征

需要充分掌握气体介质的绝缘特性

寻找电场均匀度对气体高压击穿特性的影响规律。文中研究了在0.10、0.15 MPa压力下

不同电极形式、电极间隙下的两种绝缘气体的正极性雷电冲击耐压特性。数据对比表明:干燥空气相比氮气具有更高的正极性雷电冲击电压击穿特性。同时总结了最大击穿场强E

max

与电场均匀度刀之间的关系

得到C-GIS绝缘结构设计方面的关键判据。

Abstract

Using nitrogen and dry air to replace SF

as the insulation material for eco-friendly cubic gas insulated switchgear（C-GIS） is very popular nowadays. To ensure the characteristics of compact structure and small size

engineers have to fully understand the insulation characteristics of the substitute gases. This article studies the fundamental properties of dry air and N

as the insulation medium from the respects of different electrode forms or electrodes gaps at 0.1 MPa and 0.15 MPa gas pressures. Comparison of experimental data indicates that the insulation withstand level of dry air is higher than Nitrogen for the positive lightning voltage. Simultaneously

we conclude the relation bet

ween the E

max

（maximum electric field strength） and the η（electric field utilization） as the critical criterion of the C-GIS insulation structure designing.

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Related Institution

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