配電房為什么要使用配電補償箱？

答：提高(gao)功(gong)率(lv)(lv)因(yin)素的(de)作用(yong)。打個比方(fang)，種子的(de)發(fa)芽(ya)率(lv)(lv)，一百斤種子如果發(fa)芽(ya)率(lv)(lv)是(shi)百分(fen)之九(jiu)十五(wu)，那么(me)還有百分(fen)之五(wu)沒有用(yong)的(de)，不(bu)能(neng)發(fa)芽(ya)，供(gong)電(dian)局為了提高(gao)電(dian)的(de)利用(yong)率(lv)(lv)，就要求配(pei)電(dian)房使(shi)用(yong)電(dian)容補償，來提高(gao)功(gong)率(lv)(lv)因(yin)素，種子的(de)發(fa)芽(ya)率(lv)(lv)就好比功(gong)率(lv)(lv)因(yin)素，提高(gao)了功(gong)率(lv)(lv)因(yin)素，就提高(gao)了電(dian)的(de)利用(yong)率(lv)(lv)，不(bu)至于能(neng)源在使(shi)用(yong)時(shi)白白浪費。

配電室(shi)加入(ru)電容補償是(shi)為了進行無(wu)功(gong)補償，提高(gao)功(gong)率因數。

電(dian)力系統的用電(dian)設備在使用時(shi)會產(chan)生有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)和無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)。有功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)把電(dian)能(neng)(neng)(neng)(neng)(neng)(neng)轉(zhuan)變為機(ji)械能(neng)(neng)(neng)(neng)(neng)(neng)、熱能(neng)(neng)(neng)(neng)(neng)(neng)、化(hua)學能(neng)(neng)(neng)(neng)(neng)(neng)或聲能(neng)(neng)(neng)(neng)(neng)(neng)；無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)(lv)(lv)把電(dian)能(neng)(neng)(neng)(neng)(neng)(neng)轉(zhuan)換為另一種形式(shi)的能(neng)(neng)(neng)(neng)(neng)(neng)，如電(dian)磁元件建立(li)磁場占用的電(dian)能(neng)(neng)(neng)(neng)(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。

為了減少損耗，提高供(gong)電(dian)效率，改善供(gong)電(dian)環境，需要進行無(wu)功(gong)(gong)補償。無(wu)功(gong)(gong)補償通過把具有容(rong)(rong)性功(gong)(gong)率負(fu)(fu)荷的裝(zhuang)置與感(gan)(gan)性功(gong)(gong)率負(fu)(fu)荷并(bing)聯接在同(tong)一電(dian)路實現(xian)。電(dian)力系統用電(dian)設備通常是感(gan)(gan)性的，故適當地并(bing)聯電(dian)容(rong)(rong)即可(ke)實現(xian)無(wu)功(gong)(gong)補償。