接地變(bian)(bian)(bian)壓(ya)(ya)器(qi)室(shi)(shi)(shi)內通風(feng)(feng)效果(guo)不(bu)佳,同樣(yang)會(hui)造(zao)成變(bian)(bian)(bian)壓(ya)(ya)器(qi)由于(yu)溫(wen)(wen)度(du)(du)過(guo)高(gao)發(fa)生嚴重的故障。變(bian)(bian)(bian)壓(ya)(ya)器(qi)室(shi)(shi)(shi)通風(feng)(feng)窗面(mian)積，是(shi)按變(bian)(bian)(bian)壓(ya)(ya)器(qi)室(shi)(shi)(shi)夏季通風(feng)(feng)計(ji)算溫(wen)(wen)度(du)(du)不(bu)超(chao)(chao)過(guo)+35℃（進風(feng)(feng)計(ji)算溫(wen)(wen)度(du)(du)）、出風(feng)(feng)溫(wen)(wen)度(du)(du)45℃、進出風(feng)(feng)溫(wen)(wen)差(cha)不(bu)超(chao)(chao)過(guo)15℃條件要(yao)求(qiu)，設計(ji)出變(bian)(bian)(bian)壓(ya)(ya)器(qi)室(shi)(shi)(shi)通風(feng)(feng)窗面(mian)積。而變(bian)(bian)(bian)壓(ya)(ya)器(qi)制(zhi)造(zao)廠(chang)規定，變(bian)(bian)(bian)壓(ya)(ya)器(qi)正常(chang)使用周圍空氣溫(wen)(wen)度(du)(du)不(bu)超(chao)(chao)過(guo)+40℃。標準圖通風(feng)(feng)條件比制(zhi)造(zao)廠(chang)規定正常(chang)使用環境溫(wen)(wen)度(du)(du)高(gao)了5℃，按標準圖中變(bian)(bian)(bian)壓(ya)(ya)器(qi)室(shi)(shi)(shi)尺寸設計(ji)變(bian)(bian)(bian)壓(ya)(ya)器(qi)室(shi)(shi)(shi)，已(yi)不(bu)符合(he)變(bian)(bian)(bian)壓(ya)(ya)器(qi)對(dui)周圍溫(wen)(wen)度(du)(du)要(yao)求(qiu)，夏季氣溫(wen)(wen)高(gao)時(shi)也是(shi)電(dian)氣負荷(he)(he)大時(shi)候，變(bian)(bian)(bian)壓(ya)(ya)器(qi)周圍空氣溫(wen)(wen)度(du)(du)高(gao)、負荷(he)(he)大，變(bian)(bian)(bian)壓(ya)(ya)器(qi)自身(shen)溫(wen)(wen)升過(guo)高(gao)，變(bian)(bian)(bian)壓(ya)(ya)器(qi)發(fa)生故障就(jiu)難以避免。    

一些(xie)區為防(fang)鼠類小動物進入,變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)室(shi)大(da)(da)(da)門口設置一道高0.6m防(fang)鼠閘即門檻(jian)，接地變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)室(shi)大(da)(da)(da)門上下百(bai)葉加篩網，變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)室(shi)大(da)(da)(da)門下部一大(da)(da)(da)塊進風面積恰好(hao)被遮擋，使(shi)變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)室(shi)進風窗有效面積變(bian)小, 通風效果(guo)變(bian)差(cha)。 新建變(bian)電站中變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)室(shi)尺寸，受(shou)整棟建筑物柱(zhu)距限制，有些(xie)變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)室(shi)進深過深，變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)設遠(yuan)離變(bian)電所墻上進出風百(bai)頁(ye)窗位置，使(shi)變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)周圍(wei)通風效果(guo)又被打了折扣。    

有些變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)室設計(ji)高(gao)(gao)度受到(dao)一(yi)定限(xian),1600kVA、2000 kVA變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)室，一(yi)些區仍(reng)然要求(qiu)采用臺架(jia)(jia)式布置(zhi)，通風(feng)效果較(jiao)(jiao)差。為提高(gao)(gao)變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)進出線端(duan)子對距(ju)(ju)離, 變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)被(bei)安裝鋼制臺架(jia)(jia)上(shang),變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)室內溫度隨(sui)距(ju)(ju)面高(gao)(gao)度不(bu)(bu)同而不(bu)(bu)同, 距(ju)(ju)面高(gao)(gao)度越高(gao)(gao)溫度越高(gao)(gao), 變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)被(bei)安裝鋼制臺架(jia)(jia)上(shang)處于距(ju)(ju)面較(jiao)(jiao)高(gao)(gao)位, 使變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)處于室內溫度較(jiao)(jiao)高(gao)(gao)不(bu)(bu)利(li)位。接(jie)地變(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)室出風(feng)，百頁(ye)窗旁加設了排(pai)氣扇,進行強制換氣,但排(pai)氣扇氣流(liu)與出風(feng)百頁(ye)窗氣流(liu)間(jian)相互較(jiao)(jiao)近(jin)(jin)接(jie)近(jin)(jin)短路,致(zhi)使排(pai)氣扇效率沒有充分到(dao)發揮(hui)。