中(zhong)電(dian)氣設備選擇(ze)不(bu)當造成的(de)常見錯誤：生產過(guo)(guo)程中(zhong)交流(liu)接(jie)觸(chu)器(qi)(qi)的(de)體(ti)積選擇(ze)不(bu)當，不(bu)同組(zu)的(de)插座(zuo)控制電(dian)路安(an)裝了相同體(ti)積的(de)交流(liu)接(jie)觸(chu)器(qi)(qi)，三相負(fu)載的(de)差異不(bu)完全考慮過(guo)(guo)的(de)。在(zai)(zai)平衡狀態下(xia)，不(bu)能在(zai)(zai)所(suo)有正(zheng)常模型(xing)中(zhong)選擇(ze)某些(xie)組(zu)的(de)輸出交流(liu)接(jie)觸(chu)器(qi)(qi)的(de)電(dian)流(liu)水平。基本上，電(dian)流(liu)水平是通過(guo)(guo)一(yi)個步驟選擇(ze)的(de)，該步驟會導致交流(liu)接(jie)觸(chu)器(qi)(qi)在(zai)(zai)高溫天氣下(xia)運行期間(jian)燒斷(duan)。

根據(ju)電(dian)(dian)氣設(she)備的(de)(de)接線規定，接線盒可安裝在(zai)封(feng)閉(bi)(bi)或(huo)半封(feng)閉(bi)(bi)的(de)(de)金屬外殼中或(huo)屏幕上，以(yi)形(xing)成配電(dian)(dian)室(shi)設(she)備。如果一切正常(chang)(chang)，可以(yi)使用手或(huo)控制(zhi)開關連(lian)接或(huo)斷開電(dian)(dian)源電(dian)(dian)路。常(chang)(chang)見的(de)(de)錯誤或(huo)異(yi)常(chang)(chang)取(qu)決于家用電(dian)(dian)器的(de)(de)維(wei)護，以(yi)斷開電(dian)(dian)路或(huo)警報。識(shi)別儀可以(yi)在(zai)信(xin)息模式(shi)下顯示各種主要(yao)參(can)數，還(huan)可以(yi)調整某些電(dian)(dian)氣設(she)備的(de)(de)主要(yao)參(can)數，并提醒或(huo)發出所(suo)有(you)正常(chang)(chang)工(gong)作設(she)置的(de)(de)偏差(cha)信(xin)號。常(chang)(chang)用于發電(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)(ya)(ya)(ya)(ya)等(deng)級在3.6 kV~550 kV的電(dian)氣(qi)產品作為高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)隔離開關，有接地開關，高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)斷(duan)路器(qi)(qi)，自動高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)重合和(he)斷(duan)開裝置，高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)操(cao)作機構(gou)，防爆高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)配電(dian)裝置和(he)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)開關柜等(deng)不同類別。通常，連(lian)接到系統(tong)主母(mu)線(xian)的電(dian)容器(qi)(qi)柜用(yong)(yong)于(yu)中(zhong)央(yang)無功功率補償，并(bing)且(qie)(qie)通常與(yu)輸入柜并(bing)聯安裝（系統(tong)具有PT柜，應(ying)為高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)系統(tong)，而低(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)系統(tong)沒有PT柜- PT柜相(xiang)當于(yu)降(jiang)低(di)變壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)，只需要低(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)變壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)，但是電(dian)容器(qi)(qi)柜很少用(yong)(yong)于(yu)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)系統(tong)中(zhong)，并(bing)且(qie)(qie)高(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)電(dian)容器(qi)(qi)很難制造，并(bing)且(qie)(qie)通常在低(di)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)側進行集(ji)中(zhong)補償。