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變(bian)(bian)電(dian)(dian)(dian)(dian)站是指電(dian)(dian)(dian)(dian)力系統(tong)中對電(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)流(liu)進(jin)行變(bian)(bian)換(huan)，接受電(dian)(dian)(dian)(dian)能及分配電(dian)(dian)(dian)(dian)能的場所。在發電(dian)(dian)(dian)(dian)廠內(nei)的變(bian)(bian)電(dian)(dian)(dian)(dian)站是升(sheng)壓(ya)變(bian)(bian)電(dian)(dian)(dian)(dian)站，其作(zuo)用是將發電(dian)(dian)(dian)(dian)機發出的電(dian)(dian)(dian)(dian)能升(sheng)壓(ya)后饋送到高(gao)壓(ya)電(dian)(dian)(dian)(dian)網中。

變電站的結構設計與設備布置一般具有如下要求：

①建(jian)筑物(wu)底層的(de)附(fu)屬10 kV變電(dian)站不(bu)需分(fen)(fen)室，變壓器及高低(di)壓開關柜可同層同室布置，僅需保持特定間(jian)距(ju)，具有專有建(jian)筑物(wu)的(de)35 kV獨立變電(dian)站應按照功能(neng)分(fen)(fen)層分(fen)(fen)室布置；

②變電站(zhan)的室內布置(zhi)應緊(jin)湊合理，便于運行人員的操作(zuo)、檢修(xiu)、試驗與巡視，開關(guan)柜(ju)安裝(zhuang)位置(zhi)應滿足較小(xiao)通道寬度要(yao)求，并適當考慮發展(zhan)及擴(kuo)建要(yao)求；

③分(fen)室(shi)布(bu)置(zhi)變電(dian)站應合理布(bu)置(zhi)站內各功(gong)能室(shi)的位置(zhi)，高壓(ya)(ya)配(pei)電(dian)室(shi)與高壓(ya)(ya)電(dian)容器(qi)室(shi)相鄰，低壓(ya)(ya)配(pei)電(dian)室(shi)與變壓(ya)(ya)器(qi)室(shi)相鄰，低壓(ya)(ya)配(pei)電(dian)室(shi)應便(bian)于(yu)出線，控制室(shi)位置(zhi)應便(bian)于(yu)運(yun)行人員(yuan)的工作與管(guan)理；

④高(gao)低壓配電室的(de)設施應(ying)符合安*與(yu)防火(huo)要(yao)求，站內不允許采(cai)用(yong)可燃材料裝修(xiu)；

⑤高低壓(ya)配電室(shi)、電容器(qi)室(shi)及變壓(ya)器(qi)室(shi)的門應向(xiang)外開，相鄰兩配電室(shi)的門應雙向(xiang)開啟；

⑥高(gao)低壓配電(dian)(dian)室、電(dian)(dian)容器室、變壓器室及主(zhu)控室應(ying)設置防范(fan)雨、雪、蛇、鼠等從門、窗及纜溝入(ru)室的(de)設施。