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服務包括： 
●運行監測(ce)故障處理 
我(wo)公(gong)司10-35kV高(gao)(gao)壓(ya)(ya)無(wu)功(gong)(gong)(gong)補償裝置(zhi)控(kong)(kong)制(zhi)器(qi)均裝有(you)GPRS通訊模塊，后(hou)臺軟(ruan)件建(jian)在企業的(de)(de)(de)(de)專業管理網站上，網站及(ji)后(hou)臺維護完全由(you)(you)我(wo)公(gong)司承擔（用(yong)戶只需(xu)登錄網站，打開加密的(de)(de)(de)(de)數據庫(ku)，可自行(xing)(xing)控(kong)(kong)制(zhi)，我(wo)公(gong)司負(fu)責提供設(she)備運(yun)(yun)行(xing)(xing)情況(kuang)的(de)(de)(de)(de)遠(yuan)程(cheng)監控(kong)(kong)、報警(jing)分析及(ji)事故處(chu)理；執行(xing)(xing)控(kong)(kong)制(zhi)及(ji)實地操作(zuo)均由(you)(you)用(yong)戶負(fu)責，系(xi)統(tong)可將運(yun)(yun)行(xing)(xing)中(zhong)各項(xiang)實時數據召回(hui)，實時數據包括(kuo)：線(xian)路電壓(ya)(ya)、電流、功(gong)(gong)(gong)率因(yin)數、有(you)功(gong)(gong)(gong)電度、無(wu)功(gong)(gong)(gong)電度、諧波(bo)含量、電容器(qi)動作(zuo)次數及(ji)運(yun)(yun)行(xing)(xing)中(zhong)設(she)備一(yi)些關鍵器(qi)件的(de)(de)(de)(de)運(yun)(yun)行(xing)(xing)狀態(tai)自檢參數，包括(kuo)電源PT運(yun)(yun)行(xing)(xing)工(gong)況(kuang)、控(kong)(kong)制(zhi)溫度及(ji)無(wu)功(gong)(gong)(gong)控(kong)(kong)制(zhi)器(qi)的(de)(de)(de)(de)運(yun)(yun)行(xing)(xing)狀態(tai)、投切(qie)真(zhen)空開關運(yun)(yun)行(xing)(xing)狀態(tai)等(deng)(deng)，一(yi)旦運(yun)(yun)行(xing)(xing)中(zhong)的(de)(de)(de)(de)產品出現故障，保護動作(zuo)，裝置(zhi)退出運(yun)(yun)行(xing)(xing)，GPRS將實時報警(jing)，后(hou)臺軟(ruan)件將報警(jing)前(qian)的(de)(de)(de)(de)參數留存，并進行(xing)(xing)智能化的(de)(de)(de)(de)故障分析，包括(kuo)事故原因(yin)及(ji)處(chu)理方(fang)法等(deng)(deng)參考(kao)意見，經我(wo)公(gong)司技(ji)術專業的(de)(de)(de)(de)高(gao)(gao)級(ji)工(gong)程(cheng)師確(que)認后(hou)，用(yong)手機(ji)短(duan)信通知貴方(fang)指定(ding)值(zhi)班人員，進行(xing)(xing)處(chu)理，并實施在線(xian)技(ji)術指導。 
●降損效果分(fen)析及軟件(jian)調整和后期的升級改造 
通(tong)過(guo)GPRS召(zhao)回數據(ju)，對(dui)(dui)每個點(dian)每月的(de)(de)無(wu)(wu)功(gong)需量及功(gong)率因數進行整(zheng)月統計，繪(hui)制出曲(qu)線(xian)并對(dui)(dui)投切組合(he)及投切方式進行修(xiu)正(zheng)(zheng)，經用戶(hu)同意后(hou)(hou)，將修(xiu)正(zheng)(zheng)數據(ju)從(cong)后(hou)(hou)臺直接下傳(chuan)到設備終端，調整(zheng)運行參數，直至達到最佳效果(guo)對(dui)(dui)用戶(hu)后(hou)(hou)期由于線(xian)路負荷變化(hua)(hua)造(zao)成(cheng)無(wu)(wu)功(gong)需量的(de)(de)變化(hua)(hua)，本(ben)裝(zhuang)置可(ke)以(yi)通(tong)過(guo)調節(jie)外附(fu)電容(rong)器組容(rong)量的(de)(de)方法解(jie)決，系統自動從(cong)后(hou)(hou)臺下發定值更改(gai)參數，因此可(ke)保(bao)證主體(ti)設備（開關及控制部分）10年內不需做大的(de)(de)調整(zheng)，節(jie)約投資。 
●設(she)備(bei)自檢及軟件升級(ji) 
本裝(zhuang)置所有重(zhong)要部件(jian)（控制(zhi)器、電(dian)源PT、采(cai)樣CT、電(dian)容器組、投(tou)切真空(kong)開(kai)關）均能(neng)實現在(zai)線的運(yun)行(xing)自檢(jian)功(gong)能(neng)，對于異(yi)常運(yun)行(xing)實時報警，極大的提高(gao)了產(chan)品運(yun)行(xing)的可(ke)靠性，本裝(zhuang)置的執行(xing)軟件(jian)可(ke)在(zai)后臺(tai)自動升級。 
單條配電線路的無功補償方案討論 
一、無功補償及線損分析(xi) 
城（農）網(wang)10kV線路線損(sun)偏大、電壓質量不(bu)高，一(yi)直是困擾我國(guo)電網(wang)建設的重要課題(ti)。經過三(san)期大范(fan)圍(wei)的農網(wang)改造(zao)后，雖然情況有所緩解，但主要問(wen)題(ti)依然存在。 
（一）導致農網(wang)線損居高不下的主(zhu)要原因(yin) 
1、農(nong)村地域廣闊，供(gong)電半徑較大，線(xian)路(lu)長。 
2、農村(cun)負荷季節性強(qiang)，時段(duan)性強(qiang)，負荷變化(hua)大。 
3、農村供電管理(li)尚(shang)存不(bu)盡合理(li)之處，有政策上(shang)的(de)原(yuan)因：如小容量變壓器不(bu)加(jia)補償(chang)裝置；也有負荷性(xing)質(zhi)的(de)原(yuan)因：農村不(bu)再單一使用照明負荷，動力(li)負荷也逐年增加(jia)，無功需求缺口(kou)變大(da)而顯(xian)無功補償(chang)不(bu)足。 
4、在網現有無功補償裝置的(de)控(kong)制(zhi)策略、投(tou)切分組、設(she)備管理及(ji)總體(ti)(ti)優化方案的(de)設(she)計(ji)均不適(shi)應農村負荷(he)變化的(de)特點，無功補償效果差。 
（二）城網線損現狀 
城網(wang)中的(de)(de)公(gong)用(yong)配變(bian)負荷(he)(he)特(te)性亦較為復(fu)雜，用(yong)電(dian)的(de)(de)隨意性更大，不(bu)(bu)(bu)僅無功缺(que)口大、且三相不(bu)(bu)(bu)平衡問題尤(you)為突出，而三相不(bu)(bu)(bu)平衡造(zao)成的(de)(de)過(guo)高線損更不(bu)(bu)(bu)是傳統的(de)(de)補(bu)償方(fang)式(shi)可以補(bu)償的(de)(de)。就用(yong)戶(hu)配變(bian)而言，由于補(bu)償措施參差不(bu)(bu)(bu)齊(qi)，加之(zhi)技(ji)術落后，尤(you)其對無功與網(wang)絡電(dian)壓的(de)(de)關(guan)系認識不(bu)(bu)(bu)清(qing)，加之(zhi)管(guan)理(li)措施不(bu)(bu)(bu)到位(wei)，無論采取手動投切(qie)，還是自動投切(qie)，其負荷(he)(he)設備經(jing)常處(chu)于低(di)效率運行狀(zhuang)態，總(zong)體功耗(hao)居高不(bu)(bu)(bu)下。 
二、城（農）網無(wu)功補償的現狀 
無(wu)功(gong)(gong)補(bu)償(chang)是降(jiang)低線損與提高電(dian)壓質(zhi)量最重(zhong)(zhong)要的(de)(de)技術手段，得到了(le)國家的(de)(de)高度(du)重(zhong)(zhong)視，并確定(ding)了(le)無(wu)功(gong)(gong)補(bu)償(chang)設備的(de)(de)配(pei)置，按(an)“分(fen)(fen)(fen)級補(bu)償(chang)就(jiu)地(di)平衡”的(de)(de)原(yuan)則進行規劃(hua)設計(ji)，合(he)理布局，并滿足(zu)“總體平衡與局部平衡相(xiang)結合(he)；供電(dian)部門補(bu)償(chang)與用(yong)戶補(bu)償(chang)相(xiang)結合(he)；集中補(bu)償(chang)與分(fen)(fen)(fen)散(san)補(bu)償(chang)相(xiang)結合(he)，以分(fen)(fen)(fen)散(san)為主；降(jiang)損與調壓相(xiang)結合(he)，以降(jiang)損為主”的(de)(de)要求。無(wu)功(gong)(gong)補(bu)償(chang)裝置在近幾(ji)年也(ye)得到了(le)長足(zu)發展，從(cong)三相(xiang)共補(bu)到分(fen)(fen)(fen)相(xiang)補(bu)償(chang)，從(cong)接(jie)觸(chu)器投(tou)切到無(wu)觸(chu)點過零(ling)投(tou)切，從(cong)單一(yi)的(de)(de)無(wu)功(gong)(gong)補(bu)償(chang)到附加配(pei)電(dian)監測(ce)功(gong)(gong)能等(deng)等(deng)，使無(wu)功(gong)(gong)補(bu)償(chang)裝置的(de)(de)技術含量不斷提升。 
但是，盡(jin)管如此，各地的(de)無(wu)(wu)功補(bu)償的(de)實際(ji)現狀不容樂(le)觀。三期電網改造期間所安裝的(de)無(wu)(wu)功補(bu)償裝置大多因出(chu)現故障而退出(chu)運(yun)行，花(hua)巨資投(tou)入的(de)設施卻不能(neng)為(wei)降(jiang)低(di)線損、釋放容量和穩定電壓(ya)發(fa)揮應有(you)的(de)作用(yong)，出(chu)現了“年(nian)年(nian)栽(zai)樹卻不見森林”的(de)尷尬局(ju)面(mian)。 
那么(me)(me)，是什(shen)么(me)(me)原因造(zao)成(cheng)了無功補償裝置運行(xing)情況不佳的局面，歸納起來(lai)主要有以下幾點： 
1、無功補償設(she)備配置缺(que)少簡(jian)便(bian)有效的整體(ti)規劃和(he)方案設(she)計 
各級網(wang)絡和輸配電(dian)(dian)設(she)備都要消耗一(yi)定數(shu)量的(de)無功，而且(qie)配電(dian)(dian)線路(lu)及(ji)其設(she)備所占的(de)比重更(geng)大。無論是環網(wang)、還(huan)是放射性網(wang)絡，高(gao)低壓(ya)無功補償(chang)(chang)設(she)備的(de)配置，應按(an)“分(fen)級補償(chang)(chang)就地平(ping)衡(heng)”的(de)原則(ze)進行總(zong)(zong)體(ti)的(de)規劃設(she)計（統籌(chou)考慮10kV線路(lu)、配電(dian)(dian)變壓(ya)器及(ji)用戶(hu)負荷），分(fen)級分(fen)段優化(hua)，合(he)理布局，并滿足“總(zong)(zong)體(ti)平(ping)衡(heng)與局部(bu)平(ping)衡(heng)相結(jie)合(he)；供(gong)電(dian)(dian)部(bu)門補償(chang)(chang)與用戶(hu)補償(chang)(chang)相結(jie)合(he)；集中補償(chang)(chang)與分(fen)散補償(chang)(chang)相結(jie)合(he)，以(yi)分(fen)散為(wei)主；降損與調壓(ya)相結(jie)合(he)，以(yi)降損為(wei)主”的(de)要求(qiu)
然而，在(zai)實施(shi)過(guo)程中，由于缺少簡便有效(xiao)的(de)整體(ti)(ti)規(gui)劃和(he)方(fang)案設計，使(shi)這一原則(ze)常常只(zhi)能(neng)停留在(zai)書本上(shang)(shang)，難以(yi)很(hen)好地在(zai)實際工作中得以(yi)貫徹(che)。上(shang)(shang)無(wu)(wu)功(gong)補償裝置只(zhi)能(neng)是(shi)簡單的(de)“查個(ge)數”，有幾臺(tai)變(bian)壓器就上(shang)(shang)幾臺(tai)補償箱。至(zhi)于無(wu)(wu)功(gong)電(dian)(dian)源(yuan)的(de)布局是(shi)否(fou)合理(li)，局部地區的(de)無(wu)(wu)功(gong)電(dian)(dian)力(li)能(neng)否(fou)就地平衡(heng)，變(bian)電(dian)(dian)站和(he)線路的(de)無(wu)(wu)功(gong)電(dian)(dian)力(li)過(guo)多還是(shi)不足，已(yi)無(wu)(wu)從(cong)考證(zheng)。這樣勢(shi)必(bi)影響無(wu)(wu)功(gong)補償總體(ti)(ti)平衡(heng)與(yu)局部平衡(heng)的(de)有機結合，造成(cheng)無(wu)(wu)功(gong)電(dian)(dian)力(li)的(de)長途輸送和(he)大范圍交換，使(shi)電(dian)(dian)網的(de)功(gong)率和(he)電(dian)(dian)能(neng)損耗增加(jia)。 
2、裝(zhuang)置的(de)補償方(fang)式和保護(hu)功能缺乏(fa)對(dui)使(shi)用(yong)現場(chang)的(de)針對(dui)性 
生(sheng)產廠家在提供(gong)無功(gong)補(bu)償裝置時(shi)，均是(shi)(shi)(shi)按照總體(ti)(ti)的(de)(de)(de)(de)(de)技術要(yao)求(qiu)進行(xing)生(sheng)產的(de)(de)(de)(de)(de)。然而，其分(fen)級、分(fen)組和(he)保(bao)護是(shi)(shi)(shi)否符合未(wei)來使(shi)用現(xian)場的(de)(de)(de)(de)(de)具體(ti)(ti)要(yao)求(qiu)，較小負荷時(shi)是(shi)(shi)(shi)否投(tou)得(de)上，較大負荷時(shi)的(de)(de)(de)(de)(de)補(bu)償容量是(shi)(shi)(shi)否夠，被補(bu)償變壓器是(shi)(shi)(shi)否有季節性，空載或輕(qing)載時(shi)如何(he)進行(xing)技術處(chu)理，卻是(shi)(shi)(shi)一個(ge)誰也不(bu)能(neng)確定的(de)(de)(de)(de)(de)未(wei)知(zhi)數。而這(zhe)些未(wei)知(zhi)數若不(bu)一一解(jie)出，那么，補(bu)償裝置的(de)(de)(de)(de)(de)壽命短(duan)以及補(bu)償效果差就是(shi)(shi)(shi)必然的(de)(de)(de)(de)(de)了。 
就用戶而(er)言，千差萬別，同(tong)一規(gui)格型號的(de)變壓(ya)器，其負(fu)荷(he)(he)曲線卻是(shi)各不(bu)相同(tong)。農(nong)村(cun)負(fu)荷(he)(he)與(yu)城市負(fu)荷(he)(he)更是(shi)存(cun)在著較(jiao)大的(de)差異。顯然(ran)，“以不(bu)變應萬變”的(de)做法所(suo)訂(ding)購的(de)補(bu)(bu)償無功裝(zhuang)置(zhi)(zhi)肯定無法適應現場特點，從而(er)有效地發揮補(bu)(bu)償效果(guo)。從實際效果(guo)看，大部分補(bu)(bu)償裝(zhuang)置(zhi)(zhi)經常出現投切振蕩(dang)（負(fu)荷(he)(he)較(jiao)小時，一投即過，一過又切，不(bu)能循(xun)環往復）以及變壓(ya)器空載和輕載時無法補(bu)(bu)償等情(qing)況。 
無(wu)功(gong)(gong)補(bu)償(chang)(chang)(chang)(chang)設備(bei)的(de)(de)配(pei)置(zhi)(zhi)包括三個方面的(de)(de)內(nei)容(rong)，一(yi)是(shi)(shi)確定(ding)補(bu)償(chang)(chang)(chang)(chang)地(di)點(dian)和補(bu)償(chang)(chang)(chang)(chang)方式(shi)，二是(shi)(shi)對無(wu)功(gong)(gong)補(bu)償(chang)(chang)(chang)(chang)總容(rong)量(liang)(liang)進行(xing)布點(dian)分配(pei)，三是(shi)(shi)確定(ding)單(dan)臺(tai)配(pei)變(bian)的(de)(de)補(bu)償(chang)(chang)(chang)(chang)容(rong)量(liang)(liang)配(pei)置(zhi)(zhi)。為(wei)此，除了要(yao)研究(jiu)網(wang)絡本(ben)身的(de)(de)結構(gou)特點(dian)和無(wu)功(gong)(gong)電源的(de)(de)分布之外，還需要(yao)對網(wang)絡的(de)(de)無(wu)功(gong)(gong)電力構(gou)成做(zuo)出(chu)基本(ben)的(de)(de)分析，弄清無(wu)功(gong)(gong)潮(chao)流分布，才能(neng)(neng)對補(bu)償(chang)(chang)(chang)(chang)地(di)點(dian)和方式(shi)容(rong)量(liang)(liang)進行(xing)合理配(pei)置(zhi)(zhi)。而單(dan)臺(tai)配(pei)電的(de)(de)補(bu)償(chang)(chang)(chang)(chang)容(rong)量(liang)(liang)配(pei)置(zhi)(zhi)結構(gou)，則需要(yao)根據負荷(he)(he)監測數(shu)(shu)據的(de)(de)統(tong)計(ji)分析結果確定(ding)。當負荷(he)(he)一(yi)旦發生較大(da)變(bian)化(hua)時(shi)，也(ye)應該能(neng)(neng)夠及時(shi)調整電容(rong)容(rong)量(liang)(liang)的(de)(de)配(pei)置(zhi)(zhi)。而不是(shi)(shi)簡單(dan)地(di)將變(bian)壓器個數(shu)(shu)數(shu)(shu)一(yi)數(shu)(shu)，往(wang)物資部門一(yi)報了事。否則，無(wu)功(gong)(gong)補(bu)償(chang)(chang)(chang)(chang)裝置(zhi)(zhi)就不能(neng)(neng)發揮應有的(de)(de)效能(neng)(neng)，無(wu)功(gong)(gong)補(bu)償(chang)(chang)(chang)(chang)工作也(ye)會徒勞無(wu)功(gong)(gong)，投(tou)資效益更是(shi)(shi)無(wu)從談起(qi)。 
綜(zong)上(shang)，要達(da)到無功補償效果(guo)的正(zheng)常發揮和無功補償裝(zhuang)置的安全可靠(kao)運行，就必須采(cai)取以每(mei)一條出線(xian)為(wei)單(dan)元，從0.4-10kV對無功補償設備(bei)的配(pei)置提供(gong)簡(jian)便有效的整(zheng)體(ti)規劃及方(fang)案(an)設計，才(cai)能(neng)發揮無功補償設備(bei)的最佳運行效果(guo)。 
三、關于(yu)以線路為單元的無(wu)功(gong)補償方案設計 
1、以線(xian)路為單(dan)元，0.4kV低壓(ya)采取(qu)就地補(bu)(bu)償(chang)，10kV線(xian)路采取(qu)多級的自(zi)動(dong)補(bu)(bu)償(chang)相(xiang)結合的多點補(bu)(bu)償(chang)方案。 
本方(fang)(fang)(fang)(fang)案(an)擬采(cai)(cai)用(yong)(yong)(yong)低(di)壓(ya)側專變(bian)及公變(bian)仍采(cai)(cai)取(qu)就(jiu)地低(di)壓(ya)集中(zhong)(zhong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，而對(dui)于(yu)(yu)(yu)10 kV線(xian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)采(cai)(cai)取(qu)分段的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，對(dui)于(yu)(yu)(yu)10KV線(xian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)選點(dian)(dian)(dian)(dian)問題，一(yi)(yi)般(ban)認為(wei)在(zai)線(xian)路(lu)負(fu)(fu)荷(he)(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)2/3處，選點(dian)(dian)(dian)(dian)較(jiao)合造。此選點(dian)(dian)(dian)(dian)方(fang)(fang)(fang)(fang)案(an)在(zai)實際(ji)(ji)應(ying)用(yong)(yong)(yong)中(zhong)(zhong)困難很大，因(yin)為(wei)用(yong)(yong)(yong)戶(hu)(hu)(hu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)負(fu)(fu)荷(he)(he)是(shi)(shi)時(shi)常變(bian)化的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，線(xian)路(lu)負(fu)(fu)荷(he)(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)2/3點(dian)(dian)(dian)(dian)是(shi)(shi)隨負(fu)(fu)荷(he)(he)變(bian)化而變(bian)化的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，且在(zai)此點(dian)(dian)(dian)(dian)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)較(jiao)集中(zhong)(zhong)，如(ru)果采(cai)(cai)取(qu)自(zi)動(dong)高壓(ya)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)(zhi)，其單(dan)級(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電容(rong)(rong)器(qi)組容(rong)(rong)量較(jiao)大，以(yi)(yi)目(mu)(mu)前的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)國內高壓(ya)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)流(liu)行(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)幾(ji)種(zhong)(zhong)(zhong)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)看，以(yi)(yi)時(shi)間為(wei)依據(ju)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)，由(you)于(yu)(yu)(yu)近年來用(yong)(yong)(yong)戶(hu)(hu)(hu)負(fu)(fu)荷(he)(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)化，特別是(shi)(shi)峰谷電價的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)實施，依據(ju)時(shi)間判斷用(yong)(yong)(yong)戶(hu)(hu)(hu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)峰谷值，再進行(xing)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)，由(you)于(yu)(yu)(yu)其不(bu)科學性，而較(jiao)少(shao)采(cai)(cai)用(yong)(yong)(yong)，繼之是(shi)(shi)功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)因(yin)數為(wei)判斷依據(ju)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)，由(you)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)造成功(gong)(gong)(gong)(gong)(gong)(gong)率(lv)因(yin)數快速變(bian)化，造成投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)設備頻繁動(dong)作，使投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)設備易于(yu)(yu)(yu)損(sun)壞，這種(zhong)(zhong)(zhong)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)目(mu)(mu)前使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)越來越少(shao)。而且目(mu)(mu)前行(xing)業(ye)較(jiao)認可的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)以(yi)(yi)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)需(xu)量及電壓(ya)為(wei)判斷依據(ju)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)，由(you)于(yu)(yu)(yu)產(chan)生的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)過補(bu)(bu)可能很少(shao)，安(an)全可靠，倍受用(yong)(yong)(yong)戶(hu)(hu)(hu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)青睞，但該(gai)種(zhong)(zhong)(zhong)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)，目(mu)(mu)前較(jiao)多(duo)采(cai)(cai)用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)為(wei)單(dan)級(ji)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，即采(cai)(cai)用(yong)(yong)(yong)一(yi)(yi)部分靜補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，另一(yi)(yi)部分為(wei)動(dong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，例如(ru)100+300kvar，100kvar為(wei)靜止的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)固定補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，300kvar為(wei)動(dong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，在(zai)此種(zhong)(zhong)(zhong)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)動(dong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)判斷依據(ju)為(wei)當無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)需(xu)量達(da)到所配電容(rong)(rong)器(qi)組的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)80%時(shi)，即300×80%=270kV時(shi)裝(zhuang)置(zhi)(zhi)不(bu)投(tou)(tou)(tou)(tou)(tou)(tou)入，由(you)于(yu)(yu)(yu)此時(shi)選點(dian)(dian)(dian)(dian)一(yi)(yi)般(ban)選擇在(zai)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)集中(zhong)(zhong)區，而電容(rong)(rong)量的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)配置(zhi)(zhi)一(yi)(yi)般(ban)按最大的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)考慮，該(gai)點(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)達(da)到80%最大無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)需(xu)量的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)機會，每日(ri)不(bu)足20%的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時(shi)間，因(yin)此此種(zhong)(zhong)(zhong)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)如(ru)果運(yun)用(yong)(yong)(yong)在(zai)單(dan)級(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，理(li)論上是(shi)(shi)可行(xing)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，但實際(ji)(ji)運(yun)行(xing)中(zhong)(zhong)，要求對(dui)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)變(bian)化范(fan)圍計算的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)極為(wei)準確，這在(zai)實際(ji)(ji)當中(zhong)(zhong)是(shi)(shi)非(fei)常困難的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)，因(yin)此采(cai)(cai)取(qu)此種(zhong)(zhong)(zhong)投(tou)(tou)(tou)(tou)(tou)(tou)切(qie)(qie)(qie)(qie)(qie)方(fang)(fang)(fang)(fang)式(shi)(shi)(shi)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)(zhi)大部分時(shi)間處于(yu)(yu)(yu)不(bu)動(dong)，或欠補(bu)(bu)狀態(tai)，其結果可能是(shi)(shi)投(tou)(tou)(tou)(tou)(tou)(tou)資不(bu)小、效(xiao)果一(yi)(yi)般(ban)。因(yin)本方(fang)(fang)(fang)(fang)案(an)對(dui)于(yu)(yu)(yu)10kV線(xian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)線(xian)損(sun)建議采(cai)(cai)用(yong)(yong)(yong)多(duo)點(dian)(dian)(dian)(dian)、多(duo)級(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)高壓(ya)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)(zhi)，即按線(xian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)負(fu)(fu)荷(he)(he)分布(bu)，多(duo)為(wei)3點(dian)(dian)(dian)(dian)以(yi)(yi)上的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)點(dian)(dian)(dian)(dian)，而補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)(zhi)采(cai)(cai)用(yong)(yong)(yong)單(dan)級(ji)容(rong)(rong)量較(jiao)小，步長最短（50-100kvar），2級(ji)以(yi)(yi)上的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)高壓(ya)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)(zhi)為(wei)好(hao)，由(you)于(yu)(yu)(yu)低(di)壓(ya)采(cai)(cai)取(qu)了就(jiu)地集中(zhong)(zhong)式(shi)(shi)(shi)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)（用(yong)(yong)(yong)戶(hu)(hu)(hu)側），再在(zai)線(xian)上實施多(duo)點(dian)(dian)(dian)(dian)多(duo)級(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)，對(dui)于(yu)(yu)(yu)整條(tiao)線(xian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)(gong)(gong)補(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)效(xiao)果良好(hao)。 
2、方(fang)案二(er) 
采用(yong)我公(gong)司(si)DWT-3000單條線路無功優(you)(you)化系統(tong)，對整條線路的(de)無功進行整體(ti)系統(tong)無功優(you)(you)化管理。 
此系(xi)統以(yi)配(pei)(pei)電(dian)監(jian)測為(wei)(wei)基礎，主(zhu)要用于(yu)對城網及(ji)農網配(pei)(pei)電(dian)線(xian)路進(jin)行(xing)(xing)節能(neng)改造(zao)，以(yi)線(xian)路為(wei)(wei)單元（配(pei)(pei)變(bian)0.4kV側低壓(ya)集中補償(chang)(chang)與(yu)10kV高(gao)壓(ya)線(xian)路補償(chang)(chang)相結(jie)合(he)）進(jin)行(xing)(xing)總體的(de)無(wu)功(gong)優(you)(you)化(hua)設計。首先(xian)通(tong)過遠程監(jian)測與(yu)后臺的(de)數據分析，提(ti)供單元線(xian)路每臺配(pei)(pei)變(bian)的(de)電(dian)容優(you)(you)化(hua)配(pei)(pei)置方案；以(yi)此為(wei)(wei)基礎，通(tong)過潮流(liu)分析計算，提(ti)供10kV線(xian)路的(de)無(wu)功(gong)補償(chang)(chang)優(you)(you)化(hua)配(pei)(pei)置方案，即確(que)定(ding)10kV線(xian)路高(gao)壓(ya)補償(chang)(chang)點（可以(yi)多點補償(chang)(chang)）及(ji)每點的(de)電(dian)容配(pei)(pei)置結(jie)構(gou)；電(dian)容器的(de)控制采用自動尋優(you)(you)方式(shi)投切(qie)，使單元線(xian)路始(shi)終保持相對最(zui)優(you)(you)的(de)節能(neng)狀(zhuang)態，并利于(yu)提(ti)高(gao)、穩(wen)定(ding)電(dian)能(neng)質量(liang)。 
此(ci)系統(tong)(tong)(tong)特別適用(yong)于供電(dian)(dian)(dian)(dian)線(xian)(xian)路(lu)半徑大、線(xian)(xian)路(lu)結(jie)構分(fen)(fen)支(zhi)較多、功率因(yin)數(shu)較低、用(yong)電(dian)(dian)(dian)(dian)量(liang)大且(qie)(qie)負(fu)荷類型復雜的線(xian)(xian)路(lu)，不僅(jin)節(jie)能(neng)(neng)效果十分(fen)(fen)顯著，且(qie)(qie)電(dian)(dian)(dian)(dian)能(neng)(neng)質量(liang)亦(yi)有明顯改善或提(ti)高(gao)，由于兼容現有的負(fu)控系統(tong)(tong)(tong)，故更利(li)于增強配(pei)(pei)電(dian)(dian)(dian)(dian)網絡管理的時(shi)效性。 系統(tong)(tong)(tong)（ESSP-3000）包括終端(duan)(duan)設(she)備、通(tong)信(xin)平臺及(ji)主(zhu)站（軟件）管理系統(tong)(tong)(tong)三部分(fen)(fen)，終端(duan)(duan)設(she)備及(ji)主(zhu)站功能(neng)(neng)均(jun)可根(gen)據(ju)用(yong)戶實際需求選配(pei)(pei)，但建議(yi)首先進行一定時(shi)期的配(pei)(pei)電(dian)(dian)(dian)(dian)數(shu)據(ju)監測，以此(ci)為基礎，再(zai)確定并實施單元線(xian)(xian)路(lu)的無功補償方案(an)。科學合理的系統(tong)(tong)(tong)構建，將(jiang)明顯提(ti)高(gao)配(pei)(pei)電(dian)(dian)(dian)(dian)網絡安全、可靠(kao)、經濟運行與集(ji)中(zhong)管理的效率。 
由于該方案采用了系統的配電監測系統，實時(shi)的獲(huo)得了無功(gong)的潮流分布，有(you)針(zhen)對性的投入了補償(chang)裝置，其降損效果(guo)非常顯著。 
3、方案(an)三 
低(di)壓用(yong)(yong)戶變、公變等采用(yong)(yong)就地高采低(di)補(bu)完(wan)全補(bu)償(chang)方(fang)式(shi)，線(xian)路上采用(yong)(yong)多(duo)段小容量的固定補(bu)償(chang)及(ji)無(wu)功負(fu)荷(he)集中區的高壓無(wu)功多(duo)級補(bu)償(chang)方(fang)式(shi)，達(da)到(dao)對單條線(xian)路線(xian)損的最佳控(kong)制。 
該方(fang)案(an)的思(si)路(lu)是從10kV線(xian)路(lu)的無功組成進行分析，力圖在源頭上進行無功凈化處理，從而(er)使80%線(xian)路(lu)無功不需(xu)流(liu)向線(xian)路(lu)，使線(xian)路(lu)的高壓補(bu)償更(geng)加徹底，更(geng)加易于操(cao)作(zuo)。 
該(gai)方(fang)(fang)案認為，在(zai)(zai)0.4kV用(yong)(yong)戶(hu)側(ce)(ce)(ce)雖然(ran)進(jin)行(xing)了(le)細化(hua)(hua)的(de)(de)(de)(de)(de)(de)(de)(de)低(di)(di)壓(ya)(ya)(ya)(ya)就地無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，因(yin)(yin)其(qi)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)裝(zhuang)在(zai)(zai)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)二(er)次(ci)(ci)側(ce)(ce)(ce)，其(qi)只(zhi)能補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)用(yong)(yong)戶(hu)的(de)(de)(de)(de)(de)(de)(de)(de)負(fu)(fu)載產生的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)，而(er)對于(yu)(yu)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)本(ben)身的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)（空載損耗(hao)）并沒有進(jin)行(xing)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，其(qi)占到(dao)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)容量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)10%左右，經實(shi)際測試，對于(yu)(yu)S7型變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)（200kVA）在(zai)(zai)低(di)(di)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)投(tou)入電(dian)容器(qi)(qi)(qi)后(hou)功(gong)(gong)(gong)(gong)(gong)率(lv)因(yin)(yin)數達(da)到(dao)0.95，而(er)在(zai)(zai)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)功(gong)(gong)(gong)(gong)(gong)率(lv)因(yin)(yin)數僅為0.84，和國標(biao)要(yao)求(qiu)相差(cha)0.06，由(you)此(ci)(ci)可(ke)(ke)見，即(ji)(ji)使(shi)低(di)(di)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)達(da)到(dao)了(le)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)效果(guo)，但(dan)由(you)于(yu)(yu)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)變(bian)(bian)損的(de)(de)(de)(de)(de)(de)(de)(de)原因(yin)(yin)，高(gao)(gao)(gao)低(di)(di)側(ce)(ce)(ce)仍有很大(da)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)需量(liang)(liang)(liang)(liang)，它(ta)(ta)是(shi)10kV線(xian)(xian)(xian)路(lu)(lu)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)(de)主(zhu)要(yao)組成(cheng)(cheng)(cheng)部分(fen)(fen)，如果(guo)能對它(ta)(ta)進(jin)行(xing)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，線(xian)(xian)(xian)路(lu)(lu)上將(jiang)減少近80%的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)，剩下的(de)(de)(de)(de)(de)(de)(de)(de)20%主(zhu)要(yao)是(shi)未(wei)采(cai)(cai)(cai)取任何補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)措施(shi)的(de)(de)(de)(de)(de)(de)(de)(de)100kVA以(yi)(yi)上專變(bian)(bian)及線(xian)(xian)(xian)路(lu)(lu)電(dian)感造(zao)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)，在(zai)(zai)本(ben)方(fang)(fang)案中，低(di)(di)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，其(qi)采(cai)(cai)(cai)用(yong)(yong)在(zai)(zai)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)一次(ci)(ci)側(ce)(ce)(ce)采(cai)(cai)(cai)樣(yang)，在(zai)(zai)一次(ci)(ci)側(ce)(ce)(ce)加裝(zhuang)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)控(kong)制(zhi)器(qi)(qi)(qi)，控(kong)制(zhi)低(di)(di)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，使(shi)其(qi)在(zai)(zai)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)用(yong)(yong)戶(hu)的(de)(de)(de)(de)(de)(de)(de)(de)負(fu)(fu)荷無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)時(shi)，同(tong)時(shi)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)了(le)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)本(ben)身的(de)(de)(de)(de)(de)(de)(de)(de)勵磁，由(you)于(yu)(yu)低(di)(di)壓(ya)(ya)(ya)(ya)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)技術已經非常(chang)成(cheng)(cheng)(cheng)熟，可(ke)(ke)以(yi)(yi)做成(cheng)(cheng)(cheng)多(duo)(duo)(duo)(duo)級、小(xiao)步長的(de)(de)(de)(de)(de)(de)(de)(de)投(tou)切方(fang)(fang)式(shi)，因(yin)(yin)此(ci)(ci)徹(che)(che)底解決了(le)用(yong)(yong)戶(hu)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)對線(xian)(xian)(xian)路(lu)(lu)線(xian)(xian)(xian)損的(de)(de)(de)(de)(de)(de)(de)(de)影響，特別是(shi)比(bi)較頭痛的(de)(de)(de)(de)(de)(de)(de)(de)三相不平(ping)(ping)衡(heng)(heng)造(zao)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)線(xian)(xian)(xian)路(lu)(lu)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)，由(you)于(yu)(yu)在(zai)(zai)低(di)(di)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)可(ke)(ke)以(yi)(yi)采(cai)(cai)(cai)取分(fen)(fen)相補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，避免了(le)三相高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)不平(ping)(ping)衡(heng)(heng)，對于(yu)(yu)已經安裝(zhuang)了(le)低(di)(di)壓(ya)(ya)(ya)(ya)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)(de)用(yong)(yong)戶(hu)，只(zhi)需加裝(zhuang)GWD-0.5高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)采(cai)(cai)(cai)樣(yang)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)控(kong)制(zhi)器(qi)(qi)(qi)，利用(yong)(yong)原來的(de)(de)(de)(de)(de)(de)(de)(de)低(di)(di)壓(ya)(ya)(ya)(ya)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)，即(ji)(ji)可(ke)(ke)實(shi)現(xian)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)徹(che)(che)底的(de)(de)(de)(de)(de)(de)(de)(de)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，經實(shi)際運行(xing)，經過(guo)此(ci)(ci)方(fang)(fang)案改造(zao)的(de)(de)(de)(de)(de)(de)(de)(de)線(xian)(xian)(xian)路(lu)(lu)，即(ji)(ji)使(shi)不加高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)電(dian)流(liu)下降均達(da)到(dao)80%以(yi)(yi)上。對于(yu)(yu)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)，考(kao)慮到(dao)如果(guo)按(an)常(chang)規2/3高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)選點方(fang)(fang)式(shi)，勢必(bi)造(zao)成(cheng)(cheng)(cheng)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)點補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)容量(liang)(liang)(liang)(liang)大(da)，即(ji)(ji)使(shi)采(cai)(cai)(cai)用(yong)(yong)多(duo)(duo)(duo)(duo)級的(de)(de)(de)(de)(de)(de)(de)(de)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)方(fang)(fang)式(shi)，使(shi)投(tou)資增(zeng)大(da)，補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)不徹(che)(che)底。因(yin)(yin)此(ci)(ci)該(gai)方(fang)(fang)案在(zai)(zai)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)采(cai)(cai)(cai)取以(yi)(yi)負(fu)(fu)荷為單位，分(fen)(fen)段采(cai)(cai)(cai)取小(xiao)容量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)固定補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，一般(ban)按(an)未(wei)經補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)100kVA以(yi)(yi)上的(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)容量(liang)(liang)(liang)(liang)總和的(de)(de)(de)(de)(de)(de)(de)(de)10%配置(zhi)，而(er)在(zai)(zai)線(xian)(xian)(xian)路(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)(de)最大(da)負(fu)(fu)荷2/3點處采(cai)(cai)(cai)用(yong)(yong)小(xiao)容量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)多(duo)(duo)(duo)(duo)級補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)（一般(ban)為3×100kvar）進(jin)行(xing)細化(hua)(hua)的(de)(de)(de)(de)(de)(de)(de)(de)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，這樣(yang)既不會出現(xian)過(guo)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)問題，也可(ke)(ke)以(yi)(yi)對越(yue)過(guo)固定補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)欠補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)的(de)(de)(de)(de)(de)(de)(de)(de)無(wu)(wu)功(gong)(gong)(gong)(gong)(gong)電(dian)流(liu)，得到(dao)細化(hua)(hua)的(de)(de)(de)(de)(de)(de)(de)(de)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)達(da)到(dao)最佳的(de)(de)(de)(de)(de)(de)(de)(de)效果(guo)。本(ben)方(fang)(fang)案由(you)于(yu)(yu)在(zai)(zai)低(di)(di)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)采(cai)(cai)(cai)用(yong)(yong)了(le)高(gao)(gao)(gao)低(di)(di)壓(ya)(ya)(ya)(ya)綜合補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)方(fang)(fang)式(shi)，減輕了(le)線(xian)(xian)(xian)路(lu)(lu)補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)力，同(tong)時(shi)又(you)在(zai)(zai)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)側(ce)(ce)(ce)采(cai)(cai)(cai)用(yong)(yong)了(le)多(duo)(duo)(duo)(duo)段的(de)(de)(de)(de)(de)(de)(de)(de)固定補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)，比(bi)采(cai)(cai)(cai)用(yong)(yong)一組高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)自動補(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)償(chang)(chang)(chang)(chang)(chang)(chang)(chang)裝(zhuang)置(zhi)，其(qi)投(tou)資小(xiao)、效果(guo)顯著。 
四、經濟(ji)性可行性分析 
綜上(shang)(shang)，通過大量的實踐及(ji)產品實際運行，方(fang)案二降損效果(guo)可控性強，但投資較(jiao)大，如果(guo)每(mei)條(tiao)線路(lu)每(mei)個用戶均(jun)加配電監測(ce)儀，在加之系(xi)統(tong)的投資，單條(tiao)線路(lu)投資均(jun)在幾百(bai)萬(wan)元以上(shang)(shang)。 
方案一，降損效果徹底(di)，整條線路如果低壓側已進行(xing)了集中補償的(de)改(gai)造，其投資可控制在百萬元以(yi)下。 
方案(an)三(san)，降(jiang)損效果顯著，如果低壓(ya)側(ce)已經有就地的無功補償，僅需(xu)改造采樣及控(kong)制部分，而高壓(ya)其僅采用一臺多(duo)級、小容(rong)量的投(tou)(tou)切裝置，整條線路總體投(tou)(tou)資(zi)可控(kong)制在幾十萬元以內，利于(yu)大面積(ji)的推廣(guang)。