配電房為什么要使用配電補償箱？

答：提(ti)(ti)高功(gong)率(lv)(lv)(lv)(lv)因素的作用(yong)(yong)。打個比(bi)方，種子(zi)的發(fa)(fa)芽率(lv)(lv)(lv)(lv)，一百(bai)斤種子(zi)如果發(fa)(fa)芽率(lv)(lv)(lv)(lv)是百(bai)分(fen)(fen)之(zhi)九十五，那(nei)么還(huan)有百(bai)分(fen)(fen)之(zhi)五沒有用(yong)(yong)的，不能(neng)發(fa)(fa)芽，供電局為了提(ti)(ti)高電的利用(yong)(yong)率(lv)(lv)(lv)(lv)，就(jiu)(jiu)要求配電房使用(yong)(yong)電容補償，來提(ti)(ti)高功(gong)率(lv)(lv)(lv)(lv)因素，種子(zi)的發(fa)(fa)芽率(lv)(lv)(lv)(lv)就(jiu)(jiu)好比(bi)功(gong)率(lv)(lv)(lv)(lv)因素，提(ti)(ti)高了功(gong)率(lv)(lv)(lv)(lv)因素，就(jiu)(jiu)提(ti)(ti)高了電的利用(yong)(yong)率(lv)(lv)(lv)(lv)，不至于能(neng)源在使用(yong)(yong)時白(bai)白(bai)浪費。

配電室加入電容(rong)補償是為(wei)了進行無功(gong)(gong)補償，提高(gao)功(gong)(gong)率因數。

電(dian)(dian)(dian)力系統的用(yong)電(dian)(dian)(dian)設備在使(shi)用(yong)時會產生有功功率和無(wu)功功率。有功功率把電(dian)(dian)(dian)能(neng)(neng)(neng)轉變(bian)為(wei)機械能(neng)(neng)(neng)、熱能(neng)(neng)(neng)、化學(xue)能(neng)(neng)(neng)或聲(sheng)能(neng)(neng)(neng)；無(wu)功功率把電(dian)(dian)(dian)能(neng)(neng)(neng)轉換為(wei)另一種(zhong)形式的能(neng)(neng)(neng)，如電(dian)(dian)(dian)磁元(yuan)件建立磁場占(zhan)用(yong)的電(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。

為了(le)減少(shao)損耗(hao)，提高(gao)供電(dian)效率，改善供電(dian)環(huan)境(jing)，需要進行無功(gong)補償(chang)。無功(gong)補償(chang)通過把具(ju)有容性(xing)(xing)功(gong)率負荷的(de)裝(zhuang)置與感性(xing)(xing)功(gong)率負荷并(bing)聯接在同一電(dian)路實現。電(dian)力系統(tong)用電(dian)設備通常是感性(xing)(xing)的(de)，故適當地(di)并(bing)聯電(dian)容即可實現無功(gong)補償(chang)。