高壓金(jin)屬封閉開(kai)關設(she)備(bei)是一(yi)種(zhong)(zhong)組合式(shi)電(dian)器，它可(ke)以(yi)集斷路器、負荷開(kai)關、接觸器、隔離開(kai)關、熔斷器、互感器、母(mu)線(xian)以(yi)為(wei)相應(ying)的(de)量測裝置(zhi)(zhi)(zhi)、控制(zhi)(zhi)裝置(zhi)(zhi)(zhi)、保護裝置(zhi)(zhi)(zhi)、監測診(zhen)斷裝置(zhi)(zhi)(zhi)、信(xin)號裝置(zhi)(zhi)(zhi)、連鎖(suo)裝置(zhi)(zhi)(zhi)以(yi)及通信(xin)系(xi)統等(deng)于一(yi)個長方柜形的(de)金(jin)屬外殼(ke)內。在(zai)供電(dian)系(xi)統中，高壓開(kai)設(she)備(bei)主要是用于關合及開(kai)斷電(dian)力線(xian)路，以(yi)輸送(song)及倒換電(dian)力負荷，以(yi)及從(cong)(cong)電(dian)力系(xi)統中退出故障設(she)備(bei)和線(xian)段，采(cai)用工(gong)廠化的(de)方式(shi)將各種(zhong)(zhong)電(dian)氣設(she)備(bei)在(zai)開(kai)關柜制(zhi)(zhi)造(zao)廠統一(yi)設(she)計、采(cai)購(gou)、制(zhi)(zhi)造(zao)、安裝和調(diao)試，運行(xing)更加安全(quan)，從(cong)(cong)而(er)有更大的(de)經濟效益(yi)。

大連高低壓開關柜是電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統(tong)中(zhong)最(zui)重要也是最(zui)復雜的(de)(de)設備之一，如果發生(sheng)故(gu)(gu)障那后果是非常(chang)嚴(yan)(yan)重的(de)(de)。直(zhi)接危害(hai)開(kai)(kai)關(guan)柜(ju)(ju)的(de)(de)保護指控線(xian)路(lu)、設備損(sun)(sun)失(shi)、電(dian)(dian)(dian)(dian)量損(sun)(sun)失(shi)。間接危害(hai)整(zheng)個電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統(tong)，很(hen)(hen)有可能發生(sheng)供配(pei)電(dian)(dian)(dian)(dian)故(gu)(gu)障，造(zao)成大面積的(de)(de)意外(wai)停(ting)電(dian)(dian)(dian)(dian)事故(gu)(gu)的(de)(de)發生(sheng)，影響(xiang)正(zheng)常(chang)的(de)(de)生(sheng)產生(sheng)活(huo)(huo)活(huo)(huo)動。高(gao)壓(ya)開(kai)(kai)關(guan)柜(ju)(ju)在投入(ru)運行(xing)(xing)后常(chang)常(chang)由于很(hen)(hen)多原因造(zao)成導(dao)電(dian)(dian)(dian)(dian)連接處溫度(du)升高(gao)，會讓開(kai)(kai)關(guan)柜(ju)(ju)壽命簡短，甚(shen)至(zhi)發生(sheng)被燒毀的(de)(de)嚴(yan)(yan)重事故(gu)(gu)。其次，高(gao)壓(ya)開(kai)(kai)關(guan)柜(ju)(ju)常(chang)常(chang)因為機械操作磨損(sun)(sun)和(he)環境因素等而(er)引起(qi)內(nei)部(bu)電(dian)(dian)(dian)(dian)力(li)(li)元器件損(sun)(sun)壞，如某些開(kai)(kai)關(guan)柜(ju)(ju)常(chang)年處在空氣濕(shi)度(du)比較(jiao)大的(de)(de)環境下，容(rong)易造(zao)成短路(lu)、局部(bu)放(fang)電(dian)(dian)(dian)(dian)等事故(gu)(gu)的(de)(de)發生(sheng)，破(po)壞供電(dian)(dian)(dian)(dian)的(de)(de)安全可靠(kao)。同(tong)時，電(dian)(dian)(dian)(dian)力(li)(li)維護人員(yuan)進行(xing)(xing)巡檢的(de)(de)時候往(wang)往(wang)很(hen)(hen)難(nan)(nan)看到開(kai)(kai)關(guan)柜(ju)(ju)內(nei)部(bu)的(de)(de)情況(kuang)，如柜(ju)(ju)內(nei)的(de)(de)高(gao)壓(ya)電(dian)(dian)(dian)(dian)纜頭(tou)電(dian)(dian)(dian)(dian)纜終端有無破(po)損(sun)(sun)等，單從簡單的(de)(de)參數監(jian)(jian)測(ce)很(hen)(hen)難(nan)(nan)實(shi)現完全掌握開(kai)(kai)關(guan)柜(ju)(ju)的(de)(de)運行(xing)(xing)情況(kuang)。因此，有必要能夠實(shi)時的(de)(de)對(dui)高(gao)壓(ya)開(kai)(kai)關(guan)柜(ju)(ju)的(de)(de)各種運行(xing)(xing)特性參數進行(xing)(xing)監(jian)(jian)測(ce)，而(er)且在獲(huo)得高(gao)壓(ya)開(kai)(kai)關(guan)柜(ju)(ju)參數的(de)(de)同(tong)時對(dui)圖像進行(xing)(xing)監(jian)(jian)控。通過盡可能的(de)(de)對(dui)大連高(gao)壓(ya)開(kai)(kai)關(guan)柜(ju)(ju)的(de)(de)全面監(jian)(jian)測(ce)，檢修，來(lai)最(zui)大限度(du)的(de)(de)電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統(tong)運行(xing)(xing)的(de)(de)可靠(kao)性，來(lai)減少因意外(wai)停(ting)電(dian)(dian)(dian)(dian)而(er)引起(qi)的(de)(de)損(sun)(sun)失(shi)。