FBM241咱們只核算豐水期5、6、7三個月多發(fā)的電量,因為機組增容添加電量首要是豐水期,在其于時刻增容對添加電量的作用不大(因庫容缺乏天天只能發(fā)一至2臺機組)。賠償之前,紅旗電廠被逼下落功率因數(shù)作業(yè),常降至0.75,3#、4#機只能按3000kw作業(yè),賠償后按3800kw作業(yè),兩臺機比賠償前共多帶1600kw,因為偶有停機等要素,三個月按90天算:
1600kw×24h×90=345.6萬kw.h。FBM241
削減了線路丟掉
前面已說到,在紅旗電廠運送14000kw有功功率時, 無功賠償 設備往電網(wǎng)運送無功功率7000KVAR,也即是說,從電廠到鎮(zhèn)遠的線路少運送無功功率7000KVAR,線路上電流削減了,因此線損也削減了。
線損一般包含固定丟掉、改動丟掉兩大有些,固定丟掉是不隨運送電流巨細改動的,而改動丟掉與運送電流巨細有關,與始末網(wǎng)上電流的平方成正比。因此,咱們只核算改動丟掉的改動。但也無法判定其必定值,只是核算在同一時段賠償投運后的改動丟掉占投運前的百分比。
經(jīng)核算,賠償后的改動丟掉占賠償前的67%,也即是說,改動丟掉下落了33%。這一項的效益是巨大的,因為不管電廠以何種辦法作業(yè),豐水也好,枯水也罷,只需賠償投入作業(yè),線損下落這一效益就一向存在。前三年均勻線損電量為380萬kwh,這兒面包含了固定有些,咱們假定改動有些為300萬kwh。那么賠償投運后下落的線損電量為300萬kwh×33%=99萬kwh。加上電廠多發(fā)電356萬kwh,全年添加電量為455萬kwh。以不含稅價0.2元/kwh核算創(chuàng)收益91萬元。
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