中電氣(qi)設(she)備選(xuan)擇(ze)不當造成(cheng)的(de)常見錯誤：生產過程中交流接(jie)觸(chu)器(qi)的(de)體(ti)積選(xuan)擇(ze)不當，不同組的(de)插座控制(zhi)電路安裝了相(xiang)同體(ti)積的(de)交流接(jie)觸(chu)器(qi)，三相(xiang)負載(zai)的(de)差異不完全(quan)考慮過的(de)。在平(ping)衡狀(zhuang)態下(xia)，不能在所有(you)正常模型中選(xuan)擇(ze)某些組的(de)輸出交流接(jie)觸(chu)器(qi)的(de)電流水平(ping)。基本上，電流水平(ping)是通過一(yi)個步驟選(xuan)擇(ze)的(de)，該(gai)步驟會導致交流接(jie)觸(chu)器(qi)在高(gao)溫天氣(qi)下(xia)運行(xing)期間燒斷(duan)。

根據電(dian)(dian)(dian)(dian)氣設(she)(she)備的(de)接線規(gui)定，接線盒可安裝在封(feng)閉或(huo)半封(feng)閉的(de)金屬外殼中或(huo)屏幕上，以(yi)形成配電(dian)(dian)(dian)(dian)室設(she)(she)備。如果一切(qie)正常，可以(yi)使用(yong)(yong)手(shou)或(huo)控制(zhi)開關連接或(huo)斷開電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)路(lu)(lu)。常見的(de)錯誤(wu)或(huo)異常取決于(yu)(yu)家用(yong)(yong)電(dian)(dian)(dian)(dian)器的(de)維(wei)護(hu)，以(yi)斷開電(dian)(dian)(dian)(dian)路(lu)(lu)或(huo)警報。識別儀可以(yi)在信(xin)息(xi)模(mo)式下顯示各種主要(yao)參(can)數，還可以(yi)調整(zheng)某些電(dian)(dian)(dian)(dian)氣設(she)(she)備的(de)主要(yao)參(can)數，并提醒或(huo)發(fa)出所有(you)正常工作設(she)(she)置的(de)偏(pian)差信(xin)號。常用(yong)(yong)于(yu)(yu)發(fa)電(dian)(dian)(dian)(dian)，配電(dian)(dian)(dian)(dian)和變電(dian)(dian)(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)作電壓(ya)(ya)(ya)等級在3.6 kV~550 kV的電氣產品(pin)作為高壓(ya)(ya)(ya)隔離開(kai)關，有接(jie)地開(kai)關，高壓(ya)(ya)(ya)斷路(lu)器(qi)(qi)，自動(dong)高壓(ya)(ya)(ya)重合和(he)(he)斷開(kai)裝置，高壓(ya)(ya)(ya)操(cao)作機構，防爆高壓(ya)(ya)(ya)配電裝置和(he)(he)高壓(ya)(ya)(ya)開(kai)關柜等不同類(lei)別。通(tong)常，連接(jie)到系(xi)統(tong)主母線(xian)的電容(rong)器(qi)(qi)柜用(yong)于(yu)(yu)中央無功功率(lv)補(bu)償，并(bing)且(qie)通(tong)常與輸(shu)入柜并(bing)聯安裝（系(xi)統(tong)具(ju)有PT柜，應為高壓(ya)(ya)(ya)系(xi)統(tong)，而低壓(ya)(ya)(ya)系(xi)統(tong)沒有PT柜- PT柜相(xiang)當于(yu)(yu)降低變(bian)壓(ya)(ya)(ya)器(qi)(qi)，只需要低壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)器(qi)(qi)，但是電容(rong)器(qi)(qi)柜很(hen)少用(yong)于(yu)(yu)高壓(ya)(ya)(ya)系(xi)統(tong)中，并(bing)且(qie)高壓(ya)(ya)(ya)電容(rong)器(qi)(qi)很(hen)難制造，并(bing)且(qie)通(tong)常在低壓(ya)(ya)(ya)側進行集中補(bu)償。