配電房為什么要使用配電補償箱？

答：提(ti)高功率(lv)(lv)(lv)因(yin)(yin)素(su)的(de)作用(yong)(yong)(yong)。打個比方，種(zhong)子(zi)的(de)發(fa)(fa)芽(ya)率(lv)(lv)(lv)，一百(bai)斤(jin)種(zhong)子(zi)如果(guo)發(fa)(fa)芽(ya)率(lv)(lv)(lv)是百(bai)分(fen)之(zhi)九十五，那么還有(you)百(bai)分(fen)之(zhi)五沒有(you)用(yong)(yong)(yong)的(de)，不(bu)能(neng)發(fa)(fa)芽(ya)，供(gong)電(dian)局為了提(ti)高電(dian)的(de)利(li)用(yong)(yong)(yong)率(lv)(lv)(lv)，就要求配(pei)電(dian)房使(shi)用(yong)(yong)(yong)電(dian)容(rong)補償，來提(ti)高功率(lv)(lv)(lv)因(yin)(yin)素(su)，種(zhong)子(zi)的(de)發(fa)(fa)芽(ya)率(lv)(lv)(lv)就好比功率(lv)(lv)(lv)因(yin)(yin)素(su)，提(ti)高了功率(lv)(lv)(lv)因(yin)(yin)素(su)，就提(ti)高了電(dian)的(de)利(li)用(yong)(yong)(yong)率(lv)(lv)(lv)，不(bu)至于能(neng)源在使(shi)用(yong)(yong)(yong)時白白浪費(fei)。

配電室加入電容補償(chang)是為了進(jin)行(xing)無功(gong)補償(chang)，提高(gao)功(gong)率因數。

電力(li)系統的(de)用(yong)電設備(bei)在(zai)使(shi)用(yong)時會(hui)產生(sheng)有(you)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)和無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)。有(you)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)把(ba)電能(neng)轉變為(wei)(wei)機械(xie)能(neng)、熱(re)能(neng)、化學能(neng)或聲能(neng)；無功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)把(ba)電能(neng)轉換為(wei)(wei)另(ling)一種形式的(de)能(neng)，如電磁元件建立磁場占用(yong)的(de)電能(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)減少損(sun)耗，提(ti)高供電(dian)效率，改(gai)善供電(dian)環境，需要進行無(wu)(wu)功(gong)(gong)(gong)補(bu)償。無(wu)(wu)功(gong)(gong)(gong)補(bu)償通過把(ba)具(ju)有(you)容性(xing)(xing)功(gong)(gong)(gong)率負(fu)荷(he)的(de)裝置與感(gan)性(xing)(xing)功(gong)(gong)(gong)率負(fu)荷(he)并聯接在同一電(dian)路實(shi)現。電(dian)力系統用電(dian)設備通常是感(gan)性(xing)(xing)的(de)，故適當地并聯電(dian)容即可實(shi)現無(wu)(wu)功(gong)(gong)(gong)補(bu)償。