配電房為什么要使用配電補償箱？

答：提(ti)高(gao)功率(lv)(lv)(lv)因(yin)素的(de)作用(yong)。打個比方，種(zhong)子(zi)的(de)發芽率(lv)(lv)(lv)，一百(bai)斤(jin)種(zhong)子(zi)如果發芽率(lv)(lv)(lv)是百(bai)分之九(jiu)十五，那么還有百(bai)分之五沒有用(yong)的(de)，不能發芽，供電(dian)局(ju)為了提(ti)高(gao)電(dian)的(de)利(li)用(yong)率(lv)(lv)(lv)，就(jiu)(jiu)要(yao)求配電(dian)房使(shi)用(yong)電(dian)容補償，來提(ti)高(gao)功率(lv)(lv)(lv)因(yin)素，種(zhong)子(zi)的(de)發芽率(lv)(lv)(lv)就(jiu)(jiu)好(hao)比功率(lv)(lv)(lv)因(yin)素，提(ti)高(gao)了功率(lv)(lv)(lv)因(yin)素，就(jiu)(jiu)提(ti)高(gao)了電(dian)的(de)利(li)用(yong)率(lv)(lv)(lv)，不至于能源(yuan)在使(shi)用(yong)時(shi)白(bai)(bai)白(bai)(bai)浪費(fei)。

配電(dian)室(shi)加(jia)入電(dian)容補(bu)償(chang)是為(wei)了進行無(wu)功(gong)補(bu)償(chang)，提(ti)高(gao)功(gong)率(lv)因數(shu)。

電(dian)(dian)力(li)系統的(de)(de)(de)用(yong)電(dian)(dian)設備(bei)在使用(yong)時(shi)會產生有功(gong)(gong)(gong)功(gong)(gong)(gong)率和(he)無功(gong)(gong)(gong)功(gong)(gong)(gong)率。有功(gong)(gong)(gong)功(gong)(gong)(gong)率把電(dian)(dian)能(neng)(neng)轉變為機(ji)械(xie)能(neng)(neng)、熱(re)能(neng)(neng)、化學能(neng)(neng)或(huo)聲能(neng)(neng)；無功(gong)(gong)(gong)功(gong)(gong)(gong)率把電(dian)(dian)能(neng)(neng)轉換為另(ling)一種形(xing)式(shi)的(de)(de)(de)能(neng)(neng)，如電(dian)(dian)磁(ci)(ci)元件(jian)建立磁(ci)(ci)場(chang)占用(yong)的(de)(de)(de)電(dian)(dian)能(neng)(neng)。

無功功率過大，會導致功率因數降低，供電變壓器及輸送線路的損耗增大，供電效率變低。因而國家對各變電站、重要負荷等電網節點的無功功率和功率因數有嚴格的規定。

為了減(jian)少(shao)損耗，提(ti)高(gao)供電(dian)(dian)效率，改善供電(dian)(dian)環(huan)境，需要進(jin)行(xing)無(wu)功(gong)(gong)補償(chang)。無(wu)功(gong)(gong)補償(chang)通(tong)過把(ba)具有容(rong)性功(gong)(gong)率負荷(he)的(de)裝置與感(gan)性功(gong)(gong)率負荷(he)并聯接在同一電(dian)(dian)路實現。電(dian)(dian)力系(xi)統用(yong)電(dian)(dian)設備通(tong)常是感(gan)性的(de)，故適當地并聯電(dian)(dian)容(rong)即可實現無(wu)功(gong)(gong)補償(chang)。