Simulation Study on Interruption Performance of SF<sub>6</sub> Alternative Gas in Disconnector

FU Mingli; WANG Yong; ZHUO Ran; WANG Wei; WANG Dibo; SONG Haoyong

doi:10.13296/j.1001-1609.hva.2021.03.007

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Simulation Study on Interruption Performance of SF₆ Alternative Gas in Disconnector

更新时间：2025-04-26

- Simulation Study on Interruption Performance of SF₆ Alternative Gas in Disconnector
- High VoltageApparatus Vol. 57, Issue 3, Pages: 41-47(2021)
- 作者机构：
  
  1. 南方电网科学研究院有限责任公司
  2. 2. 南方电网先进电工材料与装备基础联合实验室
  3. 广东电网有限责任公司广州供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.03.007
  CLC： TM564.1
- Published：2021
- 稿件说明：
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[1]傅明利,王勇,卓然,王炜,王邸博,宋浩永.SF_6替代气体在隔离开关中的开断性能仿真研究[J].高压电器,2021,57(03):41-47.

FU Mingli, WANG Yong, ZHUO Ran, et al. Simulation Study on Interruption Performance of SF₆ Alternative Gas in Disconnector[J]. High voltageapparatus, 2021, 57(3): 41-47.
[1]傅明利,王勇,卓然,王炜,王邸博,宋浩永.SF_6替代气体在隔离开关中的开断性能仿真研究[J].高压电器,2021,57(03):41-47. DOI： 10.13296/j.1001-1609.hva.2021.03.007.

FU Mingli, WANG Yong, ZHUO Ran, et al. Simulation Study on Interruption Performance of SF₆ Alternative Gas in Disconnector[J]. High voltageapparatus, 2021, 57(3): 41-47. DOI： 10.13296/j.1001-1609.hva.2021.03.007.

摘要

气体由于其优秀的绝缘和灭弧性能而被广泛应用于高压电力开关设备中。但是

是一种强温室效应的气体

因此

研究以氟化腈（C

N）气体为代表的新型环保气体作为SF

的替代气体成为了目前高压电器领域的热点问题。文中针对126 kV隔离开关结构

建立了燃弧过程的磁流体动力学模型

采用SF

气体和C

N/CO

混合气体的真实气体模型

对比研究了SF

和C

N/CO

混合气体在不同充气压力和触头运动速度下的燃弧过程。建立了弧后电击穿的评估方法

针对C

N/CO

混合气体在隔离开关结构下弧后的温度及气压分布

预测了弧后最有可能发生电击穿的区域。文中的结果可以为新型环保气体在隔离开关设备中的应用和优化设计提供参考。

Abstract

gas is used widely in high voltage switchgear due to its excellent insulation and arc interruption performance.However

is a kind of gas with strong greenhouse effect.Therefore

the study of new environmentfriendly gases represented by perfluoronitrile（C

N）gas as a alternative gas to SF

has become a hot topic in the field of high-voltage electrical apparatus.In view of the structure of 126 kV disconnector in this paper

the magnetohydro-dynamic model of arcing process is set up.The real gas model of SF

gas and C

N/CO

gas mixture is adopted and the arcing process of SF

gas and C

N/CO

gas mixture at different gas filling pressure pressures and contact velocity is compared and studied.The evaluation method of post arc electric breakdown is established.In view of post arc temperature and gas pressure distribution of C

N/CO

gas mixture at structure of disconnector

the most likely area of post-arc electric breakdown is predicted.The result in this paper can provide reference for the application and optimal design of of new environmental gas in disconnector.

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Related Institution

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Simulation Study on Interruption Performance of SF6 Alternative Gas in Disconnector

DOI：10.13296/j.1001-1609.hva.2021.03.007

摘要

Abstract

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references

Simulation Study on Interruption Performance of SF₆ Alternative Gas in Disconnector