【電(dian)力變(bian)壓(ya)器】電(dian)力變(bian)壓(ya)器規格型號(hao) 電(dian)力變(bian)壓(ya)器分類及作(zuo)用

電力變壓器型號規格有哪些

電(dian)力(li)變壓(ya)器型(xing)號有哪些？主要有SZ11型(xing)-35KV系(xi)列油浸式(shi)(shi)(shi)、SCB10型(xing)-10KV系(xi)列干式(shi)(shi)(shi)、S11型(xing)-10KV系(xi)列油浸式(shi)(shi)(shi)、SCB10型(xing)-20KV系(xi)列干式(shi)(shi)(shi)、SB11型(xing)-20KV系(xi)列油浸式(shi)(shi)(shi)。變壓(ya)器按冷卻方式(shi)(shi)(shi)來分為油浸式(shi)(shi)(shi)和干式(shi)(shi)(shi)變兩種。

變壓器具體(ti)型號(hao)每個廠家(jia)叫法可能(neng)都有細微差別，市面其它的型號(hao)還有如下：35kV級(ji)S9-~系列(lie)(lie)油浸(jin)式(shi)(shi)電(dian)力(li)變(bian)(bian)(bian)(bian)壓(ya)器、SG-系列(lie)(lie)三(san)相干(gan)(gan)(gan)(gan)式(shi)(shi)隔離(li)變(bian)(bian)(bian)(bian)壓(ya)器、CKSC系列(lie)(lie)串聯電(dian)抗器、10KV級(ji)ZPSG系列(lie)(lie)干(gan)(gan)(gan)(gan)式(shi)(shi)整流變(bian)(bian)(bian)(bian)壓(ya)器、KBSG礦用防爆干(gan)(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)器、35kV級(ji)S9-~系列(lie)(lie)油浸(jin)式(shi)(shi)電(dian)力(li)變(bian)(bian)(bian)(bian)壓(ya)器、SG10型H級(ji)絕(jue)緣干(gan)(gan)(gan)(gan)式(shi)(shi)電(dian)力(li)變(bian)(bian)(bian)(bian)壓(ya)器、35KV級(ji)ZS系列(lie)(lie)油浸(jin)整流變(bian)(bian)(bian)(bian)壓(ya)器、10kV級(ji)S9、S11系列(lie)(lie)油浸(jin)式(shi)(shi)電(dian)力(li)變(bian)(bian)(bian)(bian)壓(ya)器、S（B）H-M非晶合金卷鐵(tie)芯(xin)電(dian)力(li)變(bian)(bian)(bian)(bian)壓(ya)器、SGB11-R卷鐵(tie)芯(xin)H級(ji)非包封線圈干(gan)(gan)(gan)(gan)式(shi)(shi)電(dian)力(li)變(bian)(bian)(bian)(bian)壓(ya)器等一系列(lie)(lie)眾多型號(hao)。

電力變壓器分類

電(dian)力變壓器按(an)用途分(fen)類：升壓（發電(dian)廠(chang)6.3kV/10.5kV或10.5kV/110kV等）、聯絡(luo)（變電(dian)站間用220kV/110kV或110kV/10.5kV）、降壓（配電(dian)用35kV/0.4kV或10.5kV/0.4kV）。

電力變壓器按相數分類：單相、三(san)相。

電(dian)力變(bian)壓(ya)(ya)(ya)器(qi)按(an)(an)繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)分類：雙繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)（每相(xiang)裝在(zai)(zai)同一(yi)鐵心(xin)上，原(yuan)、副(fu)繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)分開繞(rao)(rao)(rao)(rao)制(zhi)、相(xiang)互(hu)絕緣）、三(san)繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)（每相(xiang)有三(san)個繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)，原(yuan)、副(fu)繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)分開繞(rao)(rao)(rao)(rao)制(zhi)、相(xiang)互(hu)絕緣）、自耦(ou)(ou)變(bian)壓(ya)(ya)(ya)器(qi)（一(yi)套繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)中間抽頭作為一(yi)次或(huo)(huo)二(er)次輸(shu)出）。三(san)繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)變(bian)壓(ya)(ya)(ya)器(qi)要求(qiu)一(yi)次繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的容(rong)量(liang)(liang)(liang)大于(yu)或(huo)(huo)等(deng)于(yu)二(er)、三(san)次繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的容(rong)量(liang)(liang)(liang)。三(san)繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)容(rong)量(liang)(liang)(liang)的百(bai)分比按(an)(an)高(gao)壓(ya)(ya)(ya)、中壓(ya)(ya)(ya)、低壓(ya)(ya)(ya)順序(xu)有：100/100/100、100/50/100、100/100/50，要求(qiu)二(er)、三(san)次繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)均不能滿載運行。一(yi)般三(san)次繞(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)電(dian)壓(ya)(ya)(ya)較低，多用(yong)(yong)于(yu)近區供電(dian)或(huo)(huo)接補(bu)償設備，用(yong)(yong)于(yu)連(lian)接三(san)個電(dian)壓(ya)(ya)(ya)等(deng)級。自耦(ou)(ou)變(bian)壓(ya)(ya)(ya)器(qi)：有升壓(ya)(ya)(ya)或(huo)(huo)降壓(ya)(ya)(ya)二(er)種，因(yin)其損耗小、重(zhong)量(liang)(liang)(liang)輕、使(shi)用(yong)(yong)經濟(ji)，為此在(zai)(zai)超高(gao)壓(ya)(ya)(ya)電(dian)網中應用(yong)(yong)較多。小型自耦(ou)(ou)變(bian)壓(ya)(ya)(ya)器(qi)常用(yong)(yong)的型號為400V/36V（24V），用(yong)(yong)于(yu)安全(quan)照明等(deng)設備供電(dian)。

電力變壓器(qi)(qi)按(an)絕緣介質分(fen)類：油浸變壓器(qi)(qi)（阻燃型、非阻燃型）、干式變壓器(qi)(qi)、110kVSF6氣體絕緣變壓器(qi)(qi)。

電力變壓器鐵(tie)心(xin)均為芯式結構。

一(yi)般通信工程中所配置的三相電力(li)變壓器為雙繞組變壓器。

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電力變壓器的作用

電(dian)(dian)(dian)(dian)(dian)(dian)力變壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)是發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)廠(chang)和(he)變電(dian)(dian)(dian)(dian)(dian)(dian)所的主(zhu)要(yao)設(she)備之(zhi)一。變壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的作用(yong)(yong)是多方面的不僅能(neng)升高電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)送到用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)地區，還能(neng)把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)降低為(wei)各級使用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，以滿(man)足用(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)的需要(yao)。總之(zhi)，升壓(ya)(ya)(ya)(ya)(ya)(ya)與(yu)降壓(ya)(ya)(ya)(ya)(ya)(ya)都(dou)必(bi)須由變壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)來完成(cheng)。在電(dian)(dian)(dian)(dian)(dian)(dian)力系(xi)統傳送電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)的過程中，必(bi)然會(hui)產生電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)和(he)功(gong)率兩部分損耗(hao)，在輸送同一功(gong)率時電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)損耗(hao)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)成(cheng)反比(bi)，功(gong)率損耗(hao)與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的平方成(cheng)反比(bi)。利用(yong)(yong)變壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)提高電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，減少了(le)送電(dian)(dian)(dian)(dian)(dian)(dian)損失(shi)。

變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)是(shi)由繞在同一鐵芯(xin)上的(de)(de)(de)兩(liang)個(ge)(ge)或兩(liang)個(ge)(ge)以上的(de)(de)(de)線圈(quan)繞組組成，繞組之(zhi)間是(shi)通(tong)過(guo)(guo)(guo)(guo)交變(bian)(bian)(bian)磁(ci)場而聯系著并按(an)電磁(ci)感應原理工作。變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)安裝位置(zhi)應考慮便于運(yun)行(xing)、檢修和運(yun)輸，同時應選(xuan)擇(ze)安全(quan)可靠的(de)(de)(de)地方。在使(shi)用變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)時必(bi)須合理地選(xuan)用變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)額定容量(liang)。變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)空(kong)(kong)載運(yun)行(xing)時，需(xu)用較大的(de)(de)(de)無(wu)功功率。這些無(wu)功功率要由供(gong)電系統(tong)供(gong)給。變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)容量(liang)若(ruo)選(xuan)擇(ze)過(guo)(guo)(guo)(guo)大，不但增加(jia)了(le)初投資，而且使(shi)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)長期(qi)處于空(kong)(kong)載或輕載運(yun)行(xing)，使(shi)空(kong)(kong)載損(sun)(sun)耗的(de)(de)(de)比重增大，功率因(yin)數降低(di)，網絡損(sun)(sun)耗增加(jia)，這樣運(yun)行(xing)既不經濟又不合理。變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)容量(liang)選(xuan)擇(ze)過(guo)(guo)(guo)(guo)小(xiao)，會使(shi)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)長期(qi)過(guo)(guo)(guo)(guo)負荷，易損(sun)(sun)壞設備。因(yin)此(ci)，變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)額定容量(liang)應根據用電負荷的(de)(de)(de)需(xu)要進(jin)行(xing)選(xuan)擇(ze)，不宜過(guo)(guo)(guo)(guo)大或過(guo)(guo)(guo)(guo)小(xiao)。