電(dian)容(rong)(rong)器(qi)在(zai)(zai)原理(li)上(shang)相當于產生容(rong)(rong)性(xing)無功(gong)(gong)(gong)電(dian)流的發(fa)電(dian)機。其無功(gong)(gong)(gong)補(bu)償的原理(li)是把具有(you)容(rong)(rong)性(xing)功(gong)(gong)(gong)率(lv)負(fu)(fu)(fu)荷(he)的裝置(zhi)和感性(xing)功(gong)(gong)(gong)率(lv)負(fu)(fu)(fu)荷(he)并(bing)聯(lian)(lian)在(zai)(zai)同一電(dian)容(rong)(rong)器(qi)上(shang)，能量在(zai)(zai)兩種負(fu)(fu)(fu)荷(he)間(jian)相互(hu)轉換。這樣(yang)，電(dian)網中的變壓器(qi)和輸電(dian)線路的負(fu)(fu)(fu)荷(he)降低，從而輸出有(you)功(gong)(gong)(gong)能力(li)增加。在(zai)(zai)輸出一定(ding)有(you)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)的情(qing)況下，供電(dian)系統(tong)(tong)的損耗降低。比較起來電(dian)容(rong)(rong)器(qi)是減輕變壓器(qi)、供電(dian)系統(tong)(tong)和工(gong)業配電(dian)負(fu)(fu)(fu)荷(he)的簡便、經濟的方法。因此，電(dian)容(rong)(rong)器(qi)作為電(dian)力(li)系統(tong)(tong)的無功(gong)(gong)(gong)補(bu)償勢在(zai)(zai)必(bi)行。當前，采用并(bing)聯(lian)(lian)電(dian)容(rong)(rong)器(qi)作為無功(gong)(gong)(gong)補(bu)償裝置(zhi)已經非常普遍。

光纖無功補償(chang)模組的必要性

還(huan)有(you)是(shi)電(dian)力用(yong)(yong)戶的(de)非(fei)線性負(fu)荷,沖擊性負(fu)荷等大(da)量(liang)(liang)投運的(de)因素，如煉鋼(gang)電(dian)弧爐，電(dian)氣化機車運行等對電(dian)能(neng)質量(liang)(liang)的(de)影響，使公用(yong)(yong)電(dian)網產生大(da)量(liang)(liang)的(de)諧波(bo)干擾，產生電(dian)壓擾動，產生電(dian)壓波(bo)動與(yu)閃變等。比(bi)如說居民、商(shang)業(ye)區及(ji)小工(gong)廠供電(dian)系統(tong)配電(dian)點的(de)電(dian)能(neng)質量(liang)(liang)檢(jian)測，根(gen)據重(zhong)要程(cheng)度一般(ban)一個月或(huo)一季度檢(jian)測一次，并應進行詳(xiang)細(xi)的(de)記錄存檔。定期巡檢(jian)使用(yong)(yong)的(de)儀(yi)器主要是(shi)便攜(xie)式電(dian)能(neng)質量(liang)(liang)分析(xi)儀(yi)或(huo)手持(chi)式電(dian)能(neng)質量(liang)(liang)分析(xi)儀(yi)。

SLTF型(xing)低壓無(wu)功(gong)動態補償裝置：適用于交(jiao)流50 Hz、額定電壓在660 V以下(xia)，負(fu)載功(gong)率變化較大，對電壓波動和功(gong)率因數有較高要求的電力、汽車、石油、化工、冶(ye)金、鐵路、港口、煤(mei)礦、油田等行業