電(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)具(ju)有(you)較強的(de)(de)地區(qu)性特點。簡單(dan)來說，就是必須因地制宜，不(bu)(bu)同國家之(zhi)間的(de)(de)電(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)規范(fan)不(bu)(bu)同：比如(ru)額定(ding)電(dian)(dian)壓、額定(ding)頻率(lv)不(bu)(bu)一樣。國內不(bu)(bu)同地區(qu)呢(ni)，電(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)組成情(qing)況(kuang)，電(dian)(dian)源(yuan)、負荷要求(qiu)也不(bu)(bu)一樣，還有(you)電(dian)(dian)氣設(she)備運(yun)行環境也不(bu)(bu)同。正(zheng)因為有(you)了差異性，使得(de)電(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)的(de)(de)發展各(ge)具(ju)特色(se)，電(dian)(dian)力系(xi)統(tong)(tong)(tong)(tong)的(de)(de)規劃、設(she)計、運(yun)行等不(bu)(bu)能盲(mang)目(mu)搬用其(qi)它系(xi)統(tong)(tong)(tong)(tong)的(de)(de)經驗，得(de)根據本地的(de)(de)實際情(qing)況(kuang)采用不(bu)(bu)同的(de)(de)對策了。

汽(qi)車(che)生產線無功補償(chang)柜(ju)的必要性

無(wu)(wu)功倒送(song)問(wen)題(ti)。無(wu)(wu)功倒送(song)會增加(jia)線(xian)路(lu)(lu)和變(bian)壓(ya)器的(de)損耗，加(jia)重線(xian)路(lu)(lu)供電負(fu)擔。固定(ding)補(bu)償部分(fen)(fen)容量過(guo)大(da)(da)，也容易出現無(wu)(wu)功倒送(song)。 三(san)相(xiang)不平衡問(wen)題(ti)。系統三(san)相(xiang)不平衡同樣(yang)會增大(da)(da)線(xian)路(lu)(lu)和變(bian)壓(ya)器的(de)損耗。對三(san)相(xiang)不平衡較(jiao)大(da)(da)的(de)負(fu)荷(he)，比如機關、學(xue)校等單(dan)相(xiang)負(fu)荷(he)多的(de)用戶，應考慮(lv)采用分(fen)(fen)相(xiang)無(wu)(wu)功補(bu)償裝置。

隨(sui)機(ji)(ji)補(bu)(bu)(bu)償(chang)(chang)：隨(sui)機(ji)(ji)補(bu)(bu)(bu)償(chang)(chang)就是(shi)將低(di)壓電(dian)(dian)容器組與電(dian)(dian)動(dong)機(ji)(ji)并接，通過(guo)控(kong)制、保護裝置(zhi)與電(dian)(dian)動(dong)機(ji)(ji)同時(shi)投(tou)切的(de)(de)(de)(de)一種無功(gong)(gong)補(bu)(bu)(bu)償(chang)(chang)方(fang)式。縣(xian)級配電(dian)(dian)網(wang)中有(you)(you)很大一部分的(de)(de)(de)(de)無功(gong)(gong)功(gong)(gong)率(lv)消(xiao)耗(hao)在電(dian)(dian)動(dong)機(ji)(ji)上(shang)，因此，搞好電(dian)(dian)動(dong)機(ji)(ji)的(de)(de)(de)(de)無功(gong)(gong)補(bu)(bu)(bu)償(chang)(chang)，使其(qi)無功(gong)(gong)就地平衡，既(ji)能減少配電(dian)(dian)線路的(de)(de)(de)(de)損耗(hao)，同時(shi)還可(ke)以(yi)提高電(dian)(dian)動(dong)機(ji)(ji)的(de)(de)(de)(de)出(chu)力(li)。隨(sui)機(ji)(ji)補(bu)(bu)(bu)償(chang)(chang)的(de)(de)(de)(de)優點是(shi)用電(dian)(dian)設備運(yun)行(xing)時(shi)，無功(gong)(gong)補(bu)(bu)(bu)償(chang)(chang)裝置(zhi)投(tou)入;用電(dian)(dian)設備停運(yun)時(shi)，補(bu)(bu)(bu)償(chang)(chang)裝置(zhi)退出(chu)。更具有(you)(you)投(tou)資少、占位小(xiao)、安裝容易、配置(zhi)方(fang)便靈(ling)活(huo)、維護簡單、事(shi)故率(lv)低(di)的(de)(de)(de)(de)特點。適用于補(bu)(bu)(bu)償(chang)(chang)電(dian)(dian)動(dong)機(ji)(ji)的(de)(de)(de)(de)無功(gong)(gong)消(xiao)耗(hao)，以(yi)補(bu)(bu)(bu)勵(li)磁無功(gong)(gong)為主，可(ke)較(jiao)好的(de)(de)(de)(de)限制配電(dian)(dian)網(wang)無功(gong)(gong)峰荷(he)。年運(yun)行(xing)小(xiao)時(shi)數在1000h以(yi)上(shang)的(de)(de)(de)(de)電(dian)(dian)動(dong)機(ji)(ji)采用隨(sui)機(ji)(ji)補(bu)(bu)(bu)償(chang)(chang)較(jiao)其(qi)他補(bu)(bu)(bu)償(chang)(chang)方(fang)式更經濟。