豐瑞電氣

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　　(1)一級配(pei)電設(she)備，統(tong)稱為動力配(pei)電中心。它們(men)集中安裝在企業的變電站，把電能分(fen)配(pei)給不同地點的下(xia)級配(pei)電設(she)備。這(zhe)一級設(she)備緊靠降壓(ya)(ya)變壓(ya)(ya)器，故電氣(qi)參數要求較高，輸出電路容(rong)量也較大。

　　(2)二級(ji)配(pei)電(dian)設備，是動(dong)(dong)力(li)配(pei)電(dian)柜和(he)電(dian)動(dong)(dong)機控制(zhi)(zhi)中心的(de)(de)統(tong)稱。動(dong)(dong)力(li)配(pei)電(dian)柜使用在負荷比較分散(san)、回路較少的(de)(de)場合(he);電(dian)動(dong)(dong)機控制(zhi)(zhi)中心用于負荷集中、回路較多的(de)(de)場合(he)。它們把上一級(ji)配(pei)電(dian)設備某一電(dian)路的(de)(de)電(dian)能(neng)分配(pei)給就近(jin)的(de)(de)負荷。這級(ji)設備應對負荷提供保護、監視(shi)和(he)控制(zhi)(zhi)。

　　(3)末(mo)級配(pei)電(dian)(dian)(dian)設(she)備總(zong)稱為照明(ming)動力配(pei)電(dian)(dian)(dian)箱(xiang)。它們遠離供電(dian)(dian)(dian)中心，是分散的小容量配(pei)電(dian)(dian)(dian)設(she)備

　　配電(dian)(dian)(dian)(dian)柜(ju)(ju)(ju)微(wei)機(ji)保(bao)護裝置是由(you)高(gao)(gao)集成度、總線(xian)并(bing)出(chu)芯片單片機(ji)、高(gao)(gao)精度電(dian)(dian)(dian)(dian)流電(dian)(dian)(dian)(dian)壓互感器、高(gao)(gao)絕緣強(qiang)度出(chu)口中間繼(ji)電(dian)(dian)(dian)(dian)器、高(gao)(gao)可(ke)靠開關(guan)電(dian)(dian)(dian)(dian)源模塊等部件組成。開關(guan)柜(ju)(ju)(ju)微(wei)機(ji)保(bao)護裝置主(zhu)要(yao)作為(wei)(wei)110KV及以下電(dian)(dian)(dian)(dian)壓等級(ji)的開關(guan)柜(ju)(ju)(ju)。發電(dian)(dian)(dian)(dian)廠、變電(dian)(dian)(dian)(dian)站(zhan)、配電(dian)(dian)(dian)(dian)站(zhan)等，也可(ke)作為(wei)(wei)部分70V-220V之間電(dian)(dian)(dian)(dian)壓等級(ji)開關(guan)柜(ju)(ju)(ju)中系(xi)統的電(dian)(dian)(dian)(dian)壓電(dian)(dian)(dian)(dian)流的保(bao)護及測控。