电器与能效管理技术Issue(6)：17-21,50,6.DOI:10.16628/j.cnki.2095-8188.2025.06.003
空气绝缘开关柜电缆室燃弧压力升计算及分析
Calculation and Analysis of Arc Pressure Rise in AIS Cable Compartment
摘要
Abstract
Based on the heat conduction equation,the fluid governing equation and the ideal gas equation,the arc power is loaded into the control equation of fluid motion by the internal heat source method.A numerical model for calculating the arc pressure in the cable compartment of switchgear is established.When an arc fault occurs at the copper busbar in the cable compartment,the three-dimensional gas flow field in the cable compartment is numerically calculated.The pressure rise distribution law and the propagation characteristics of the pressure shock wave in the cable compartment during the initial stage of the arc are pointed out.Finally,based on GB/T 3906-2020,a 40 kA,1 s internal arc test is conducted on the product,The results show that the numerical calculation results of the pressure field are in good agreement with the test results.The error meets the engineering requirements.This provides theoretical support and design reference for the subsequent design and optimization of similar products.关键词
开关柜/电弧/压力计算/内燃弧试验Key words
switchgear/arc/pressure calculation/internal arc test分类
信息技术与安全科学引用本文复制引用
郭庆..空气绝缘开关柜电缆室燃弧压力升计算及分析[J].电器与能效管理技术,2025,(6):17-21,50,6.基金项目
普陀区科技研发平台项目(2022SN03) （2022SN03）
