BENTLY NEVADA 5073-10變壓器的有功功率損耗無功功率需用綜合功率損耗計(jì)算式,明它們都隨負(fù)載的增加發(fā)生非線性變化,由此可得出以下幾種方法以實(shí)現(xiàn)變壓器經(jīng)濟(jì)運(yùn)行對(duì)于容量相同的變壓器和容量不同的變壓器無論是單獨(dú)運(yùn)行還是并列運(yùn)行,都可以根據(jù)變壓器的技術(shù)參數(shù),畫出變壓器損耗負(fù)載發(fā)生非線性曲線性變化曲線,并根據(jù)變壓器間綜合功率技術(shù)特性優(yōu)劣判別式的計(jì)算結(jié)果來選定變壓器經(jīng)濟(jì)運(yùn)行。
BENTLY NEVADA 5073-10 調(diào)整負(fù)載實(shí)現(xiàn)變壓器經(jīng)是運(yùn)行根據(jù)變壓器經(jīng)濟(jì)運(yùn)行及其運(yùn)行方式的有功損耗率無功需用率和綜合損耗率隨著負(fù)載發(fā)生非線性變化的原理,采取調(diào)整用電負(fù)載曲線使方均根值趨向平均值,就可以調(diào)整負(fù)載減少變壓器的無功需用。
在不同負(fù)載下,同負(fù)載增量,引起變壓器的功率損失增量增加值不同。通過削峰填谷,可實(shí)現(xiàn)變壓器的經(jīng)濟(jì)運(yùn)行。
BENTLY NEVADA 5073-10提功率因數(shù)實(shí)現(xiàn)變壓器經(jīng)濟(jì)運(yùn)行,提高功率因數(shù)既能降低變壓器的有功功率損耗,又能降低變壓器的無功功率需用。
選擇變壓器經(jīng)濟(jì)運(yùn)行區(qū)實(shí)現(xiàn)變壓器經(jīng)濟(jì)運(yùn)行,變壓器經(jīng)濟(jì)負(fù)載系數(shù)是確定變壓器經(jīng)濟(jì)運(yùn)行區(qū)和經(jīng)濟(jì)運(yùn)行區(qū)優(yōu)選運(yùn)行段的基礎(chǔ)。由于變壓器經(jīng)濟(jì)負(fù)載系數(shù)僅是變壓器負(fù)載曲線上的點(diǎn),這對(duì)負(fù)載定范圍波動(dòng)時(shí)校驗(yàn)變壓器經(jīng)濟(jì)運(yùn)行條件很困難,因此08346292提出了變壓器經(jīng)濟(jì)運(yùn)行區(qū)的概念,并給出了按綜合功率確定變壓器經(jīng)濟(jì)行區(qū)濟(jì)運(yùn)行區(qū)。在經(jīng)濟(jì)運(yùn)行區(qū)運(yùn)行時(shí),其損耗率要低于額定于負(fù)載損耗率,即經(jīng)濟(jì)運(yùn)行區(qū)間的變壓器額定負(fù)載條件下的運(yùn)行效率。
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