摘要
为辅助高压开关柜设计及优化,减少试验次数、缩短产品开发周期;文中基于有限容积法对10 kV KYN-28A高压开关柜整体模型进行了三维气流—温升仿真分析。通过建立10 kV高压开关柜三维模型、划分网格、计算发热功率、采用有限容积法计算出开关柜内各部件的温度以及柜内气流分布。计算结果表明,强迫风冷状态下由于上下静触头盒内气流流速明显不同,上部隔离触头温度要高于下部隔离触头的温度,且为发热的主要部位。进行了相关的温升实验,数值计算结果与试验结果基本吻合。
Based on finite volume method, three dimensional airflow-temperature rise simulation of 10 kV KYN-28A High-voltage switchgear is analyzed to assist the design and optimization of high voltage switchgear, reduce the test times and shorten the product development cycle. Through the establishment of 3D 10 kV High-voltage switchgear model, mesh and calculation of heating power, the temperature of components in switchgear and air distribution inside are cal- culated, using the finite volume metho＆ The calculation results show that the flow velocity of the upper and lower stat- ic contact box is obviously different under the forced air cooling condition, and the temperature of the upper isolated contacts are higher than the lower part. The upper isolated contacts are the main heating position. Temperature rise test is carried out and the computational results are basically consistent with experiment.
出处
《高压电器》
CAS
CSCD
北大核心
2017年第10期12-18,共7页
High Voltage Apparatus
关键词
10
kV高压开关柜
强迫风冷
流体一温度场
仿真分析
10 kV high-voltage switchgear
forced air cooling
fluid-temperature field
simulation analysis
