变电站开关柜附柜的结构设计与应用  

Structural Design and Application of Auxiliary Cabinet of Switchgear in the Substation

作　　者：姚光久 王振刚 闫超 孟晨旭 陈伟明 YAO Guang-jiu;WANG Zhen-gang;YAN Chao;MENG Chen-xu;CHEN Wei-ming(Zhongshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd,Zhongshan 528400,China)

机构地区：[1]广东电网有限责任公司中山供电局,广东中山528400

出　　处：《电工电气》2023年第2期63-66,共4页Electrotechnics Electric

摘　　要：随着电网负荷的逐年增加,开关柜发热问题愈发突出。分析了现有开关柜散热故障问题,设计了一种让内部空气循环对流的开关柜附柜,并对开关柜改造原理及改造技术方案进行了阐述。实际应用案例表明,该开关柜附柜可以实现快速降温降压,避免温度压力异常产生短路爆炸故障对人身造成的伤害和设备损坏,降低了电力人员巡检次数,提高了变电站设备运维管理水平。As the network load increases year by year,the heating of the switchgear is becoming more and more prominent.According to the fault of heat dissipation,an auxiliary cabinet of switchgear which allows internal air convective circulation is designed and the paper also describes its reformation principle and technical plan.The application cases show that the auxiliary cabinet of switchgear can achieve fast cooling and voltage reduction to avoid short-circuit exploration caused by abnormal temperature and voltage,which does harm to people and equipments.Moreover,the application of this auxiliary cabinet can reduce the number of inspection and improve the operation and management of substation apparatus.

关 键 词：高压开关柜 设备发热 附柜 对流循环散热 开关柜附柜 

分 类 号：TM591[电气工程—电器]