電力電子技(ji)術(shu)(shu)的應用(yong)給解決電壓暫降問(wen)題開拓了廣闊的前景。用(yong)戶(hu)電力技(ji)術(shu)(shu)將電力電子、計算(suan)機和現代控(kong)制(zhi)理論等高新技(ji)術(shu)(shu)運用(yong)于(yu)供電、配電系統,形成了一(yi)系列的電能(neng)質量(liang)控(kong)制(zhi)技(ji)術(shu)(shu)和設備,可較(jiao)好(hao)地解決穩態、暫態電能(neng)質量(liang)問(wen)題,從而(er)大大提高了電網的電能(neng)質量(liang)。
變(bian)壓器無功補償柜優缺點分析
低壓電(dian)(dian)(dian)容(rong)器(qi)(qi)(qi)的質量也不(bu)(bu)夠可靠(kao),密封措施不(bu)(bu)良(liang),經(jing)常有電(dian)(dian)(dian)解液泄漏的現(xian)象出現(xian)。當時(shi)在變電(dian)(dian)(dian)站安裝的10 kV電(dian)(dian)(dian)容(rong)器(qi)(qi)(qi)組是由單(dan)臺電(dian)(dian)(dian)容(rong)器(qi)(qi)(qi)組合(he)而成(cheng)的,或(huo)接成(cheng)三(san)角形或(huo)接成(cheng)星形,體積(ji)較大,一般(ban)要建造電(dian)(dian)(dian)容(rong)器(qi)(qi)(qi)室用來安裝;電(dian)(dian)(dian)容(rong)器(qi)(qi)(qi)的制作質量不(bu)(bu)高,絕緣材料由紙(zhi)和氯化聯苯浸(jin)劑組成(cheng),紙(zhi)層均勻(yun)度(du)不(bu)(bu)好(hao),易(yi)形成(cheng)局部擊穿,氯化聯苯有毒,對人體和環(huan)境均有影(ying)響。
總(zong)結:電容器(qi)在(zai)變配電所各種設(she)備中屬于可(ke)靠性比較薄(bo)弱的(de)電器(qi),它(ta)比同(tong)級電壓的(de)其他設(she)備的(de)絕緣較為薄(bo)弱,內部元件發熱較多,而散(san)熱情況又(you)欠(qian)佳,內部故(gu)障機會較多,制(zhi)造電力(li)電容器(qi)內部材料的(de)可(ke)燃物成分又(you)大(da),所以運行中極易(yi)著火。因此,對電力(li)電容器(qi)的(de)運行應盡(jin)可(ke)能(neng)地創造良好的(de)低(di)溫和通風(feng)條件。