配電房為什么要使用配電補償箱？

答：提(ti)(ti)高功(gong)(gong)率(lv)(lv)因(yin)素的(de)作用。打(da)個比方，種子的(de)發芽(ya)率(lv)(lv)，一(yi)百斤種子如果發芽(ya)率(lv)(lv)是百分之(zhi)九十五，那(nei)么還有百分之(zhi)五沒有用的(de)，不(bu)能發芽(ya)，供(gong)電(dian)局為了提(ti)(ti)高電(dian)的(de)利(li)用率(lv)(lv)，就要求配電(dian)房(fang)使(shi)用電(dian)容補償，來提(ti)(ti)高功(gong)(gong)率(lv)(lv)因(yin)素，種子的(de)發芽(ya)率(lv)(lv)就好比功(gong)(gong)率(lv)(lv)因(yin)素，提(ti)(ti)高了功(gong)(gong)率(lv)(lv)因(yin)素，就提(ti)(ti)高了電(dian)的(de)利(li)用率(lv)(lv)，不(bu)至于能源在使(shi)用時(shi)白白浪費(fei)。

配電室加入(ru)電容補償是為了(le)進行(xing)無功(gong)(gong)補償，提高功(gong)(gong)率(lv)因數。

電(dian)(dian)(dian)力系統的(de)用(yong)電(dian)(dian)(dian)設備在使用(yong)時會產生有功(gong)(gong)功(gong)(gong)率和(he)無功(gong)(gong)功(gong)(gong)率。有功(gong)(gong)功(gong)(gong)率把(ba)電(dian)(dian)(dian)能(neng)(neng)(neng)轉(zhuan)變(bian)為(wei)機(ji)械能(neng)(neng)(neng)、熱能(neng)(neng)(neng)、化學(xue)能(neng)(neng)(neng)或聲能(neng)(neng)(neng)；無功(gong)(gong)功(gong)(gong)率把(ba)電(dian)(dian)(dian)能(neng)(neng)(neng)轉(zhuan)換為(wei)另一種形(xing)式的(de)能(neng)(neng)(neng)，如電(dian)(dian)(dian)磁元件建立磁場占用(yong)的(de)電(dian)(dian)(dian)能(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(wei)了減少(shao)損(sun)耗(hao)，提高供電效率，改善供電環境，需要進行無(wu)(wu)功補(bu)償(chang)(chang)。無(wu)(wu)功補(bu)償(chang)(chang)通過把具有容性(xing)功率負荷的(de)裝置與感性(xing)功率負荷并聯(lian)接在同一電路實現。電力系統(tong)用(yong)電設備通常是(shi)感性(xing)的(de)，故適當地并聯(lian)電容即(ji)可實現無(wu)(wu)功補(bu)償(chang)(chang)。