煤礦行業是關乎國計民生的重要領域，很大程度上受國家經濟發展的影響。隨著經濟的不斷發展，煤礦行業自身對電能的消耗也越來越大，煤礦井上、下高低壓電網普遍存在著功率因數較低，電網線損大，電能浪費嚴重等情況。所以，提高煤礦供電系統功率因數，實行無功補償是一件非常重要的事情。通過無功補償能夠減少供(gong)配電系統(tong)的(de)(de)線路損(sun)耗和變壓器的(de)(de)有(you)功(gong)損(sun)耗，提(ti)高(gao)電網供(gong)電質量，降低采煤的(de)(de)電力(li)成本，達到節能降耗的(de)(de)目的(de)(de)。
煤礦(kuang)通過對高壓電(dian)網(wang)(wang)增設電(dian)容(rong)(rong)器(qi)(qi)組來實現(xian)集中無功補償(chang)，提高功率因數(shu)。礦(kuang)井變(bian)電(dian)所高壓集中補償(chang)電(dian)容(rong)(rong)器(qi)(qi)是(shi)單(dan)相電(dian)容(rong)(rong)器(qi)(qi)，所需的電(dian)容(rong)(rong)器(qi)(qi)均分(fen)三相安裝，其接線(xian)(xian)為(wei)三角(jiao)形(xing)(xing)。角(jiao)形(xing)(xing)接線(xian)(xian)電(dian)容(rong)(rong)器(qi)(qi)承受的相電(dian)壓為(wei)星(xing)形(xing)(xing)接線(xian)(xian)的√3倍(bei)，當(dang)三個單(dan)相電(dian)容(rong)(rong)器(qi)(qi)采用角(jiao)形(xing)(xing)接線(xian)(xian)時，其容(rong)(rong)量(liang)(liang)為(wei)采用星(xing)形(xing)(xing)接線(xian)(xian)時容(rong)(rong)量(liang)(liang)的3倍(bei)，因此電(dian)容(rong)(rong)器(qi)(qi)接成三角(jiao)形(xing)(xing)是(shi)較合理的。如(ru)果單(dan)相電(dian)容(rong)(rong)的額定電(dian)壓低(di)于電(dian)網(wang)(wang)電(dian)壓時，應作星(xing)形(xing)(xing)連接。
具體案例：
某煤礦通過對地面配電室、主井絞車和主扇的高壓進行安設無功補償裝置，補償無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)來提高功(gong)(gong)(gong)率(lv)(lv)因(yin)數(shu)，使全礦功(gong)(gong)(gong)率(lv)(lv)因(yin)數(shu)由原來的0.84提高到0.90。全年節電(dian)(dian)60.26萬元。可見(jian)煤礦無功(gong)(gong)(gong)補償的現實經濟價值還是非(fei)常大的，此(ci)外功(gong)(gong)(gong)率(lv)(lv)因(yin)數(shu)提高還能增加設備(bei)輸出(chu)容(rong)量，減(jian)少線路和(he)變壓的損耗，降低電(dian)(dian)量，減(jian)少電(dian)(dian)費(fei)支出(chu)方面效果顯著。而且電(dian)(dian)容(rong)補償這(zhe)種方式結構(gou)簡單，投入(ru)費(fei)用低，因(yin)此(ci)這(zhe)種方法很(hen)值得廣泛(fan)應用和(he)推(tui)廣。
STT-STMP低(di)(di)壓無功補償柜(ju)是用于補償感性負荷所需要的(de)(de)無功功率的(de)(de)裝置。該裝置對于提(ti)高(gao)系統的(de)(de)功率因(yin)數，改善電能質量，延長電力設(she)備使用壽命，降低(di)(di)電網傳輸(shu)損(sun)耗，抑制電壓波動(dong)具有重要作(zuo)用。提(ti)高(gao)了系統的(de)(de)功率因(yin)數，降低(di)(di)了線路中(zhong)的(de)(de)無功電流，充(chong)分(fen)響應了國(guo)家環保(bao)節能的(de)(de)號(hao)召(zhao)；同時幫助用戶解決了用電罰款的(de)(de)擔憂。
在線客服