低(di)壓無(wu)功(gong)(gong)(gong)補償(chang)柜用于低(di)壓電網的(de)無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率補償(chang)，以提高電網功(gong)(gong)(gong)率因數，降低(di)線(xian)路(lu)損(sun)耗(hao)，改(gai)善電能質(zhi)量。該系(xi)列(lie)低(di)壓無(wu)功(gong)(gong)(gong)補償(chang)柜以智能型(xing)無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率控制(zhi)器(qi)為核(he)心，利用電容型(xing)接(jie)觸(chu)器(qi)作為電容器(qi)組的(de)投(tou)切器(qi)件，根據電網功(gong)(gong)(gong)率因數自(zi)動進行投(tou)切電容，確(que)保電網始終具有較高的(de)功(gong)(gong)(gong)率因數。

光(guang)纖補償模(mo)組(zu)解決方案

在進(jin)行串聯電(dian)抗(kang)器(qi)(qi)選型要進(jin)行以下幾(ji)步：一步，要確定(ding)電(dian)容器(qi)(qi)的(de)額定(ding)電(dian)壓，這(zhe)個(ge)會在本(ben)文的(de)第(di)4節重點(dian)說明；第(di)二步，要確定(ding)電(dian)抗(kang)器(qi)(qi)的(de)補(bu)償方式(shi)，單(dan)相、三(san)相，單(dan)相用于(yu)無(wu)功(gong)補(bu)償中的(de)分補(bu)，三(san)相用于(yu)無(wu)功(gong)補(bu)償中的(de)共補(bu)；第(di)三(san)步，確定(ding)電(dian)抗(kang)器(qi)(qi)的(de)容量，根據電(dian)網背景確定(ding)電(dian)抗(kang)器(qi)(qi)的(de)電(dian)抗(kang)率，這(zhe)個(ge)會在本(ben)文的(de)第(di)4節重點(dian)說明，再使(shi)用公式(shi)電(dian)抗(kang)率=XL/Xc，按(an)照(zhao)確定(ding)好的(de)電(dian)容器(qi)(qi)容量計(ji)算出(chu)對應的(de)電(dian)抗(kang)器(qi)(qi)的(de)容量。

在(zai)用(yong)電(dian)(dian)(dian)單位中(zhong)，大(da)量的用(yong)電(dian)(dian)(dian)設備(bei)是(shi)異步(bu)電(dian)(dian)(dian)動(dong)機(ji)、電(dian)(dian)(dian)力變(bian)壓器、電(dian)(dian)(dian)阻爐、電(dian)(dian)(dian)弧爐、照明(ming)等，前兩項用(yong)電(dian)(dian)(dian)設備(bei)在(zai)電(dian)(dian)(dian)網中(zhong)的滯(zhi)后無功(gong)功(gong)率的比重 大(da)，有的可達(da)全廠負荷的80％，甚至更大(da)。因(yin)此(ci)在(zai)設計中(zhong)正確選用(yong)電(dian)(dian)(dian)動(dong)機(ji)、變(bian)壓器等容量，可以(yi)提高負荷率，對提高自然功(gong)率因(yin)數具(ju)有重要(yao)意義。