變電站開關(guān)柜附柜的結(jié)構(gòu)設(shè)計(jì)與應(yīng)用
姚光久，王振剛，閆超，孟晨旭，陳偉明
(廣東電網(wǎng)有限責(zé)任公司中山供電局，廣東 中山 528400)
摘 要：隨著電網(wǎng)負(fù)荷的逐年增加，開關(guān)柜發(fā)熱問題愈發(fā)突出。分析了現(xiàn)有開關(guān)柜散熱故障問題，設(shè)計(jì)了一種讓內(nèi)部空氣循環(huán)對(duì)流的開關(guān)柜附柜，并對(duì)開關(guān)柜改造原理及改造技術(shù)方案進(jìn)行了闡述。實(shí)際應(yīng)用案例表明，該開關(guān)柜附柜可以實(shí)現(xiàn)快速降溫降壓，避免溫度壓力異常產(chǎn)生短路爆炸故障對(duì)人身造成的傷害和設(shè)備損壞，降低了電力人員巡檢次數(shù)，提高了變電站設(shè)備運(yùn)維管理水平。
關(guān)鍵詞： 高壓開關(guān)柜；設(shè)備發(fā)熱；附柜；對(duì)流循環(huán)散熱；開關(guān)柜附柜
中圖分類號(hào)：TM591 文獻(xiàn)標(biāo)識(shí)碼：B 文章編號(hào)：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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