干式變壓器平衡的具體化
干(gan)式(shi)變壓(ya)器廠剖(pou)析,干(gan)式(shi)變壓(ya)器廠詳(xiang)細介紹,干(gan)式(shi)變壓(ya)器在運轉環節中需要搞好平衡(heng)(heng)(heng),干(gan)式(shi)變壓(ya)器均衡(heng)(heng)(heng)的(de)難度是特別(bie)大的(de),那麼常(chang)見的(de)干(gan)式(shi)變壓(ya)器的(de)平衡(heng)(heng)(heng)務必注意(yi)有什么狀況呢?以下是較常(chang)用的(de)干(gan)式(shi)變壓(ya)器平衡(heng)(heng)(heng)的(de)具體(ti)化的(de)方面供大家(jia)搞好參考:
干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器的(de)(de)(de)電(dian)(dian)(dian)阻(zu)不(bu)(bu)平(ping)(ping)(ping)衡(heng)率=(磁(ci)鐵線(xian)圈大電(dian)(dian)(dian)阻(zu)值-磁(ci)鐵線(xian)圈小(xiao)電(dian)(dian)(dian)阻(zu)值)/三(san)(san)相(xiang)電(dian)(dian)(dian)阻(zu)的(de)(de)(de)平(ping)(ping)(ping)均值。各相(xiang)相(xiang)彼此之(zhi)間的(de)(de)(de)電(dian)(dian)(dian)阻(zu)不(bu)(bu)平(ping)(ping)(ping)衡(heng)率一(yi)般情形下必須不(bu)(bu)得(de)超過0.2%,線(xian)與線(xian)相(xiang)互(hu)(hu)之(zhi)間的(de)(de)(de)電(dian)(dian)(dian)阻(zu)不(bu)(bu)平(ping)(ping)(ping)衡(heng)率一(yi)般情形下不(bu)(bu)得(de)超過0.4%。三(san)(san)相(xiang)負(fu)(fu)載(zai)(zai)不(bu)(bu)平(ping)(ping)(ping)衡(heng)水準由三(san)(san)相(xiang)負(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)流量(liang)(liang)(liang)不(bu)(bu)平(ping)(ping)(ping)衡(heng)度(du)Kbp說(shuo)明,一(yi)般要(yao)求干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器小(xiao)組出線(xian)電(dian)(dian)(dian)流量(liang)(liang)(liang)不(bu)(bu)平(ping)(ping)(ping)衡(heng)度(du)小(xiao)于10%;低壓(ya)(ya)供配(pei)電(dian)(dian)(dian)系統互(hu)(hu)聯網技(ji)術首端負(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)流量(liang)(liang)(liang)不(bu)(bu)平(ping)(ping)(ping)衡(heng)度(du)小(xiao)于20%。而在實際的(de)(de)(de)負(fu)(fu)載(zai)(zai)測(ce)評中(zhong),常常發現三(san)(san)相(xiang)負(fu)(fu)載(zai)(zai)電(dian)(dian)(dian)流量(liang)(liang)(liang)不(bu)(bu)平(ping)(ping)(ping)衡(heng)度(du)高于20%,有的(de)(de)(de)乃(nai)至做到(dao)50%以(yi)上。三(san)(san)相(xiang)負(fu)(fu)載(zai)(zai)不(bu)(bu)平(ping)(ping)(ping)衡(heng)或(huo)規律(lv)性(xing)過負(fu)(fu)載(zai)(zai),配(pei)電(dian)(dian)(dian)設備(bei)變(bian)(bian)壓(ya)(ya)器三(san)(san)相(xiang)負(fu)(fu)載(zai)(zai)不(bu)(bu)平(ping)(ping)(ping)衡(heng),從(cong)調查研究報告來看許多(duo)的(de)(de)(de)存在,尤其是在農村(cun),電(dian)(dian)(dian)力安(an)裝工程負(fu)(fu)載(zai)(zai)的(de)(de)(de)大部分(fen)為單相(xiang)負(fu)(fu)載(zai)(zai),且(qie)負(fu)(fu)荷變(bian)(bian)化大,因此,有很多(duo)變(bian)(bian)電(dian)(dian)(dian)設備(bei)干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器三(san)(san)相(xiang)的(de)(de)(de)負(fu)(fu)載(zai)(zai)不(bu)(bu)平(ping)(ping)(ping)衡(heng),使三(san)(san)相(xiang)不(bu)(bu)能對(dui)稱運行,導致零序電(dian)(dian)(dian)流。這(zhe)一(yi)方(fang)面使干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器的(de)(de)(de)耗費擴張,另一(yi)方(fang)面降低了(le)干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器的(de)(de)(de)有效容量(liang)(liang)(liang)。以(yi)上二種狀況,將(jiang)導致干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器過熱變(bian)(bian)壓(ya)(ya)器油脆化,使電(dian)(dian)(dian)磁(ci)線(xian)圈電(dian)(dian)(dian)纜護套水平(ping)(ping)(ping)降低,終(zhong)也(ye)將(jiang)導致干(gan)(gan)(gan)式(shi)變(bian)(bian)壓(ya)(ya)器損壞。