功(gong)率因(yin)數是指在電(dian)(dian)力(li)網中通過線路和變壓(ya)器(qi)對電(dian)(dian)力(li)供給有(you)效的(de)電(dian)(dian)力(li)所占(zhan)的(de)比例(li)。在電(dian)(dian)力(li)網的(de)運行中,希望功(gong)率因(yin)數越(yue)大(da)越(yue)好。如果可以的(de)話,用(yong)電(dian)(dian)力(li)設(she)備的(de)皮相(xiang)電(dian)(dian)力(li)供給有(you)效電(dian)(dian)力(li),減(jian)少(shao)無效電(dian)(dian)力(li)的(de)傳(chuan)輸(shu),減(jian)少(shao)有(you)效電(dian)(dian)力(li)損失。適當(dang)提(ti)高用(yong)戶功(gong)率因(yin)數,可以充分發(fa)揮供電(dian)(dian)設(she)備的(de)生(sheng)產能力(li),降低線損,提(ti)高電(dian)(dian)壓(ya)質量。

首次裝(zhuang)置無功補償改(gai)造方案(an)

而對重要(yao)變(bian)電(dian)(dian)站或實施(shi)無人(ren)值班變(bian)電(dian)(dian)站的(de)公共(gong)配電(dian)(dian)點或重要(yao)電(dian)(dian)力用(yong)(yong)戶的(de)配電(dian)(dian)點可(ke)實行電(dian)(dian)能(neng)質量在線(xian)連續(xu)監(jian)測(ce)。在線(xian)檢測(ce)主要(yao)適用(yong)(yong)于監(jian)測(ce)電(dian)(dian)網電(dian)(dian)壓(ya)質量偏差、三相電(dian)(dian)壓(ya)不(bu)平衡(heng)、電(dian)(dian)壓(ya)諧波等(deng)(deng)狀態，以及電(dian)(dian)力用(yong)(yong)戶負荷注入公用(yong)(yong)電(dian)(dian)網的(de)諧波電(dian)(dian)流和負序(xu)電(dian)(dian)流等(deng)(deng)指標(biao)。

安裝接(jie)線(xian)按(an)照先(xian)左后(hou)右(you)、從上(shang)到下(xia)、由(you)里到外、先(xian)難后(hou)易的接(jie)線(xian)原則進行接(jie)線(xian)。先(xian)接(jie)線(xian)無功(gong)功(gong)率(lv)表、電流(liu)表、電壓表；然(ran)后(hou)接(jie)線(xian)自動補(bu)償儀、轉換開關；完成以后(hou)進行捆(kun)扎線(xian)保(bao)持(chi)橫平(ping)豎直轉角為(wei)90°。端(duan)子排接(jie)線(xian)要留出(chu)一(yi)段(duan)線(xian)，每只端(duan)子上(shang)接(jie)線(xian)螺釘 多接(jie)二(er)根導(dao)線(xian)，對于端(duan)子間的連線(xian)可采(cai)用（圖五）的方法。然(ran)后(hou)接(jie)線(xian)電流(liu)互(hu)感(gan)器(qi)、交(jiao)流(liu)接(jie)觸(chu)器(qi)、熱(re)繼電器(qi)。