Study on Optimal Design of Automatic Fire Extinguishing Device for Failure of High Voltage Switchgear Cabinet

ZHANG Jiaqing; XIE Jia; HUANG Weimin; GUO Yi; SHANG Fengju; JIA Jia; WANG Wei; MA Guoming

doi:10.13296/j.1001-1609.hva.2024.01.005

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Study on Optimal Design of Automatic Fire Extinguishing Device for Failure of High Voltage Switchgear Cabinet

Research & Analysis | 更新时间：2025-04-26

- Study on Optimal Design of Automatic Fire Extinguishing Device for Failure of High Voltage Switchgear Cabinet
- High Voltage Apparatus Vol. 60, Issue 1, Pages: 41-47(2024)
- 作者机构：
  
  1.国网安徽省电力有限公司电力科学研究院，合肥　 230601
  2.电力火灾与安全防护安徽省重点实验室，合肥　 230022
  3.国家电网公司输变电设施火灾防护实验室，合肥　 230022
  4.国网安徽省电力有限公司，合肥　 230061
  5.华北电力大学新能源电力系统国家重点实验室，北京　 102206
- 作者简介：
- 基金信息：
  
  Science and Technology Project of State Grid Anhui Electric Corporation of China(B3120520000D)
- DOI：10.13296/j.1001-1609.hva.2024.01.005
  CLC：
- Received：08 October 2023，
  
  Revised：13 December 2023，
  
  Published：16 January 2024
- 稿件说明：
移动端阅览
ZHANG Jiaqing, XIE Jia, HUANG Weimin, et al. Study on Optimal Design of Automatic Fire Extinguishing Device for Failure of High Voltage Switchgear Cabinet[J]. High voltage apparatus, 2024, 60(1): 41-47.
DOI：

ZHANG Jiaqing, XIE Jia, HUANG Weimin, et al. Study on Optimal Design of Automatic Fire Extinguishing Device for Failure of High Voltage Switchgear Cabinet[J]. High voltage apparatus, 2024, 60(1): 41-47. DOI： 10.13296/j.1001-1609.hva.2024.01.005.

摘要

近年来发生了多起高压开关柜火灾事故，传统开关柜灭火通过人工方式灭火，存在灭火效率低、人员风险大等问题。现有开关柜自动灭火装置研究存在引入电场畸变、启动阈值不清及灭火剂选择不当等问题。为解决上述问题，文中开展了高压开关柜故障起火自动灭火系统研究。优化设计了了灭火剂喷头结构，降低了最大场强，避免了绝缘击穿风险。进行了真型开关柜火灾模拟试验，基于试验过程中温度场分布确定了灭火装置启动阈值。探索了灭火剂类型与用量，确定了合理的高压开关柜灭火剂设置方案。建立了完整的高压开关柜自动灭火系统，试验结果表明文中所提出灭火系统快速有效。

Abstract

In recent years

multiple fire accidents of high voltage switchgear cabinet have happened. The fire extinguishing of traditional switchgear cabient is performed manually

which has such problems as low efficiency and high risk. The study of automatic fire extinguishing device for existing high voltage switchgear cabinet has such problems as electric field distortion

unclear starting threshold and improper selection of fire extinguishing agent. For solving above problem

the study of automatic fire extinguishing system is developed in this paper. Firstly

the sprinkler structure of fire extinguishing agent is optimized so to reduce the maximum electrical field strength and avoid dielectrci breakdown risk. Then

a fire simulation test of true switchgear cabinet is carried out

and the starting threshold of fire extinguishing device is determined based on the temperature field distribution during the test. Moreover

type and dosage of the extinguishing agent are studied

and a reasonable extinguishing agent setting scheme for high voltage switchgear cabinet is determined. A complete automatic fire extinguishing system of high voltage switchgear cabinet is set up. The test results show that the developed fire extinguishing system is fast and effective.

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