中(zhong)電(dian)氣(qi)設(she)備選(xuan)擇(ze)不(bu)(bu)當造成的(de)常(chang)(chang)見錯誤(wu)：生產過程中(zhong)交流(liu)(liu)接觸(chu)器的(de)體(ti)積(ji)選(xuan)擇(ze)不(bu)(bu)當，不(bu)(bu)同(tong)組的(de)插(cha)座控制電(dian)路安(an)裝(zhuang)了相同(tong)體(ti)積(ji)的(de)交流(liu)(liu)接觸(chu)器，三相負載的(de)差異不(bu)(bu)完全考慮過的(de)。在(zai)(zai)平衡狀態下，不(bu)(bu)能(neng)在(zai)(zai)所有(you)正常(chang)(chang)模型(xing)中(zhong)選(xuan)擇(ze)某些組的(de)輸(shu)出交流(liu)(liu)接觸(chu)器的(de)電(dian)流(liu)(liu)水平。基本上，電(dian)流(liu)(liu)水平是(shi)通過一個(ge)步(bu)驟(zou)(zou)選(xuan)擇(ze)的(de)，該步(bu)驟(zou)(zou)會導致交流(liu)(liu)接觸(chu)器在(zai)(zai)高溫天(tian)氣(qi)下運(yun)行期間燒斷。

根據(ju)電(dian)(dian)氣(qi)設(she)備(bei)的(de)(de)接線規定，接線盒可安裝在(zai)封閉或(huo)(huo)半封閉的(de)(de)金屬外殼中(zhong)或(huo)(huo)屏(ping)幕(mu)上，以形成配電(dian)(dian)室(shi)設(she)備(bei)。如果(guo)一切正常(chang)(chang)，可以使用手或(huo)(huo)控制開關連(lian)接或(huo)(huo)斷開電(dian)(dian)源(yuan)電(dian)(dian)路。常(chang)(chang)見的(de)(de)錯(cuo)誤或(huo)(huo)異常(chang)(chang)取決于(yu)家用電(dian)(dian)器(qi)的(de)(de)維護，以斷開電(dian)(dian)路或(huo)(huo)警報。識別儀(yi)可以在(zai)信(xin)(xin)息模式下顯示各(ge)種主要參數，還(huan)可以調整某些電(dian)(dian)氣(qi)設(she)備(bei)的(de)(de)主要參數，并提醒或(huo)(huo)發(fa)出所有正常(chang)(chang)工作設(she)置的(de)(de)偏差(cha)信(xin)(xin)號。常(chang)(chang)用于(yu)發(fa)電(dian)(dian)，配電(dian)(dian)和變電(dian)(dian)站。

涉及電源系統中發電，傳輸，分配，轉換和功耗中的接通和斷開，控制或保護的作用。高壓配電柜用(yong)(yong)作電(dian)壓(ya)(ya)(ya)等(deng)級在3.6 kV~550 kV的(de)(de)電(dian)氣產品作為(wei)高(gao)壓(ya)(ya)(ya)隔離開關，有(you)接(jie)地開關，高(gao)壓(ya)(ya)(ya)斷路(lu)器，自動高(gao)壓(ya)(ya)(ya)重合和斷開裝置(zhi)，高(gao)壓(ya)(ya)(ya)操(cao)作機構，防爆高(gao)壓(ya)(ya)(ya)配電(dian)裝置(zhi)和高(gao)壓(ya)(ya)(ya)開關柜等(deng)不同(tong)類(lei)別。通(tong)常(chang)，連接(jie)到系(xi)統(tong)(tong)(tong)主(zhu)母線(xian)的(de)(de)電(dian)容(rong)器柜用(yong)(yong)于(yu)中央無功功率補償，并且通(tong)常(chang)與輸入柜并聯安裝（系(xi)統(tong)(tong)(tong)具有(you)PT柜，應為(wei)高(gao)壓(ya)(ya)(ya)系(xi)統(tong)(tong)(tong)，而低壓(ya)(ya)(ya)系(xi)統(tong)(tong)(tong)沒有(you)PT柜- PT柜相(xiang)當(dang)于(yu)降低變壓(ya)(ya)(ya)器，只需要低壓(ya)(ya)(ya)變壓(ya)(ya)(ya)器，但是電(dian)容(rong)器柜很少(shao)用(yong)(yong)于(yu)高(gao)壓(ya)(ya)(ya)系(xi)統(tong)(tong)(tong)中，并且高(gao)壓(ya)(ya)(ya)電(dian)容(rong)器很難(nan)制造，并且通(tong)常(chang)在低壓(ya)(ya)(ya)側進行集中補償。