變電站開關柜附柜的結構設計與應用
姚光久,王振剛,閆超,孟晨旭,陳偉明
(廣東電網有限責任公司中山供電局,廣東 中山 528400)
摘 要:隨著電網負荷的逐年增加,開關柜發熱問題愈發突出。分析了現有開關柜散熱故障問題,設計了一種讓內部空氣循環對流的開關柜附柜,并對開關柜改造原理及改造技術方案進行了闡述。實際應用案例表明,該開關柜附柜可以實現快速降溫降壓,避免溫度壓力異常產生短路爆炸故障對人身造成的傷害和設備損壞,降低了電力人員巡檢次數,提高了變電站設備運維管理水平。
關鍵詞: 高壓開關柜;設備發熱;附柜;對流循環散熱;開關柜附柜
中圖分類號:TM591 文獻標識碼:B 文章編號:1007-3175(2023)02-0063-04
Structural Design and Application of Auxiliary Cabinet of
Switchgear in the Substation
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)
Abstract: 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.
Key words: high voltage switchgear; equipment heating; convective circulation; heat dissipation; auxiliary cabinet of switchgear
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