机电工程技术2024，Vol.53Issue(11)：186-192,7.DOI:10.3969/j.issn.1009-9492.2024.11.040
大电流KYN28型高压开关柜改善温升解决方法
Solution of Temperature Rise of Large Current KYN28 High Voltage Switchgear
摘要
Abstract
To solve the heating problem of large current KYN28 high voltage switchgear,the heating mechanism of the switchgear is analyzed,three heating sources are determined,including internal resistance,contact resistance and induction resistance of main loop,and the total heating power is calculated.The heat dissipation power is balanced by increasing the heat dissipation area on both sides of the PDC,increasing the air ventilation area of the PDC,forcing convection air cooling and improving the design of the air duct in the cabinet,so that the heat dissipation power is greater than the total heat power.HZDL-WS-6300/12 automatic temperature rise test system is used in laboratory to carried out measurement.Results show that,in the standard environment,the measured temperature rise decreases by about 10%,which is a significant improvement,the overall result is basically in line with expectations.It verifies that the proposed measures are feasible to solve the problem of temperature rise,and it is considered necessary to address such issues during the operation of the equipment,monitor the temperature rise situation in real time to ensure the safety of equipment operation.关键词
KYN28/高压开关柜/温升/散热Key words
KYN28/high-voltage switchgear/temperature rise/heat dissipation分类
信息技术与安全科学引用本文复制引用
吴锦虹,余伙庆..大电流KYN28型高压开关柜改善温升解决方法[J].机电工程技术,2024,53(11):186-192,7.基金项目
2023年汕头职业技术学院校级教师企业实践流动站项目(2024-rsc-006) （2024-rsc-006）
