【電力(li)變壓器】電力(li)變壓器規格型號 電力(li)變壓器分類及作用

電力變壓器型號規格有哪些

電力(li)變(bian)壓(ya)器型(xing)(xing)號有哪些？主要有SZ11型(xing)(xing)-35KV系(xi)列(lie)油浸(jin)式(shi)(shi)、SCB10型(xing)(xing)-10KV系(xi)列(lie)干式(shi)(shi)、S11型(xing)(xing)-10KV系(xi)列(lie)油浸(jin)式(shi)(shi)、SCB10型(xing)(xing)-20KV系(xi)列(lie)干式(shi)(shi)、SB11型(xing)(xing)-20KV系(xi)列(lie)油浸(jin)式(shi)(shi)。變(bian)壓(ya)器按冷卻(que)方式(shi)(shi)來分為油浸(jin)式(shi)(shi)和干式(shi)(shi)變(bian)兩種。

變壓器具(ju)體型號每個廠家(jia)叫法可能都(dou)有細微差別，市面其它的型號還有如(ru)下：35kV級(ji)(ji)S9-~系(xi)(xi)列(lie)油(you)浸(jin)(jin)式(shi)電(dian)(dian)(dian)(dian)力變壓(ya)(ya)器(qi)(qi)、SG-系(xi)(xi)列(lie)三相(xiang)干(gan)式(shi)隔離變壓(ya)(ya)器(qi)(qi)、CKSC系(xi)(xi)列(lie)串聯電(dian)(dian)(dian)(dian)抗(kang)器(qi)(qi)、10KV級(ji)(ji)ZPSG系(xi)(xi)列(lie)干(gan)式(shi)整(zheng)流變壓(ya)(ya)器(qi)(qi)、KBSG礦(kuang)用防爆干(gan)式(shi)變壓(ya)(ya)器(qi)(qi)、35kV級(ji)(ji)S9-~系(xi)(xi)列(lie)油(you)浸(jin)(jin)式(shi)電(dian)(dian)(dian)(dian)力變壓(ya)(ya)器(qi)(qi)、SG10型H級(ji)(ji)絕(jue)緣干(gan)式(shi)電(dian)(dian)(dian)(dian)力變壓(ya)(ya)器(qi)(qi)、35KV級(ji)(ji)ZS系(xi)(xi)列(lie)油(you)浸(jin)(jin)整(zheng)流變壓(ya)(ya)器(qi)(qi)、10kV級(ji)(ji)S9、S11系(xi)(xi)列(lie)油(you)浸(jin)(jin)式(shi)電(dian)(dian)(dian)(dian)力變壓(ya)(ya)器(qi)(qi)、S（B）H-M非(fei)晶合金(jin)卷鐵芯(xin)電(dian)(dian)(dian)(dian)力變壓(ya)(ya)器(qi)(qi)、SGB11-R卷鐵芯(xin)H級(ji)(ji)非(fei)包封線圈(quan)干(gan)式(shi)電(dian)(dian)(dian)(dian)力變壓(ya)(ya)器(qi)(qi)等一系(xi)(xi)列(lie)眾多型號。

電力變壓器分類

電力變壓(ya)器按用(yong)途分類：升(sheng)壓(ya)（發電廠6.3kV/10.5kV或10.5kV/110kV等）、聯絡（變電站間(jian)用(yong)220kV/110kV或110kV/10.5kV）、降(jiang)壓(ya)（配電用(yong)35kV/0.4kV或10.5kV/0.4kV）。

電力(li)變壓器按相(xiang)數分類：單相(xiang)、三相(xiang)。

電(dian)(dian)力(li)變(bian)壓(ya)(ya)(ya)(ya)器(qi)按繞(rao)(rao)(rao)組(zu)(zu)(zu)分(fen)類：雙繞(rao)(rao)(rao)組(zu)(zu)(zu)（每相裝在(zai)同(tong)一(yi)(yi)鐵心上，原(yuan)、副(fu)繞(rao)(rao)(rao)組(zu)(zu)(zu)分(fen)開繞(rao)(rao)(rao)制(zhi)、相互絕緣(yuan)）、三(san)繞(rao)(rao)(rao)組(zu)(zu)(zu)（每相有三(san)個(ge)繞(rao)(rao)(rao)組(zu)(zu)(zu)，原(yuan)、副(fu)繞(rao)(rao)(rao)組(zu)(zu)(zu)分(fen)開繞(rao)(rao)(rao)制(zhi)、相互絕緣(yuan)）、自耦變(bian)壓(ya)(ya)(ya)(ya)器(qi)（一(yi)(yi)套繞(rao)(rao)(rao)組(zu)(zu)(zu)中間抽頭作為(wei)一(yi)(yi)次(ci)(ci)(ci)或二次(ci)(ci)(ci)輸出）。三(san)繞(rao)(rao)(rao)組(zu)(zu)(zu)變(bian)壓(ya)(ya)(ya)(ya)器(qi)要求(qiu)一(yi)(yi)次(ci)(ci)(ci)繞(rao)(rao)(rao)組(zu)(zu)(zu)的(de)(de)(de)容(rong)量(liang)(liang)大于或等(deng)于二、三(san)次(ci)(ci)(ci)繞(rao)(rao)(rao)組(zu)(zu)(zu)的(de)(de)(de)容(rong)量(liang)(liang)。三(san)繞(rao)(rao)(rao)組(zu)(zu)(zu)容(rong)量(liang)(liang)的(de)(de)(de)百分(fen)比按高壓(ya)(ya)(ya)(ya)、中壓(ya)(ya)(ya)(ya)、低壓(ya)(ya)(ya)(ya)順序有：100/100/100、100/50/100、100/100/50，要求(qiu)二、三(san)次(ci)(ci)(ci)繞(rao)(rao)(rao)組(zu)(zu)(zu)均不能滿載運(yun)行。一(yi)(yi)般三(san)次(ci)(ci)(ci)繞(rao)(rao)(rao)組(zu)(zu)(zu)電(dian)(dian)壓(ya)(ya)(ya)(ya)較(jiao)低，多用于近區供電(dian)(dian)或接補償設(she)備(bei)，用于連(lian)接三(san)個(ge)電(dian)(dian)壓(ya)(ya)(ya)(ya)等(deng)級。自耦變(bian)壓(ya)(ya)(ya)(ya)器(qi)：有升壓(ya)(ya)(ya)(ya)或降(jiang)壓(ya)(ya)(ya)(ya)二種，因(yin)其損(sun)耗小、重(zhong)量(liang)(liang)輕、使用經(jing)濟，為(wei)此在(zai)超高壓(ya)(ya)(ya)(ya)電(dian)(dian)網中應用較(jiao)多。小型自耦變(bian)壓(ya)(ya)(ya)(ya)器(qi)常用的(de)(de)(de)型號為(wei)400V/36V（24V），用于安全照明等(deng)設(she)備(bei)供電(dian)(dian)。

電力變壓器(qi)按絕緣介質分類：油浸(jin)變壓器(qi)（阻燃(ran)型(xing)、非阻燃(ran)型(xing)）、干(gan)式變壓器(qi)、110kVSF6氣體(ti)絕緣變壓器(qi)。

電力變壓器鐵(tie)心均為芯式結構。

一般通信工程中(zhong)所配置的三相電力變壓(ya)器為雙(shuang)繞組(zu)變壓(ya)器。

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電力變壓器的作用

電(dian)(dian)(dian)力變壓(ya)(ya)器(qi)是發電(dian)(dian)(dian)廠和(he)變電(dian)(dian)(dian)所的主(zhu)要(yao)設備之一。變壓(ya)(ya)器(qi)的作(zuo)用(yong)是多方(fang)面的不(bu)僅能(neng)(neng)升高(gao)電(dian)(dian)(dian)壓(ya)(ya)把(ba)電(dian)(dian)(dian)能(neng)(neng)送到用(yong)電(dian)(dian)(dian)地區(qu)，還能(neng)(neng)把(ba)電(dian)(dian)(dian)壓(ya)(ya)降低(di)為各級使(shi)用(yong)電(dian)(dian)(dian)壓(ya)(ya)，以滿足用(yong)電(dian)(dian)(dian)的需(xu)要(yao)。總之，升壓(ya)(ya)與(yu)降壓(ya)(ya)都必(bi)須由變壓(ya)(ya)器(qi)來(lai)完成(cheng)。在電(dian)(dian)(dian)力系(xi)統傳送電(dian)(dian)(dian)能(neng)(neng)的過程中，必(bi)然會(hui)產生電(dian)(dian)(dian)壓(ya)(ya)和(he)功率兩部(bu)分損(sun)(sun)耗，在輸送同一功率時電(dian)(dian)(dian)壓(ya)(ya)損(sun)(sun)耗與(yu)電(dian)(dian)(dian)壓(ya)(ya)成(cheng)反比，功率損(sun)(sun)耗與(yu)電(dian)(dian)(dian)壓(ya)(ya)的平方(fang)成(cheng)反比。利用(yong)變壓(ya)(ya)器(qi)提高(gao)電(dian)(dian)(dian)壓(ya)(ya)，減少了送電(dian)(dian)(dian)損(sun)(sun)失。

變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)是由繞在(zai)同一鐵芯上(shang)的(de)(de)(de)兩個或兩個以上(shang)的(de)(de)(de)線圈(quan)繞組(zu)(zu)組(zu)(zu)成，繞組(zu)(zu)之間是通(tong)過(guo)交(jiao)變(bian)磁(ci)場(chang)而聯系著并按(an)電磁(ci)感應原理(li)工(gong)作(zuo)。變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)安(an)裝位置應考慮便于運(yun)行、檢修和運(yun)輸，同時(shi)(shi)應選擇(ze)(ze)安(an)全(quan)可靠(kao)的(de)(de)(de)地方。在(zai)使用(yong)(yong)變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)時(shi)(shi)必須合理(li)地選用(yong)(yong)變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)額定(ding)容(rong)量(liang)。變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)空(kong)載運(yun)行時(shi)(shi)，需用(yong)(yong)較(jiao)大的(de)(de)(de)無功(gong)(gong)功(gong)(gong)率。這些無功(gong)(gong)功(gong)(gong)率要由供電系統供給。變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)容(rong)量(liang)若選擇(ze)(ze)過(guo)大，不(bu)但增(zeng)(zeng)加(jia)了初投資，而且使變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)長期(qi)處于空(kong)載或輕(qing)載運(yun)行，使空(kong)載損(sun)耗的(de)(de)(de)比重增(zeng)(zeng)大，功(gong)(gong)率因數降低(di)，網絡損(sun)耗增(zeng)(zeng)加(jia)，這樣運(yun)行既不(bu)經濟又不(bu)合理(li)。變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)容(rong)量(liang)選擇(ze)(ze)過(guo)小，會(hui)使變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)長期(qi)過(guo)負荷(he)，易損(sun)壞設備。因此(ci)，變(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)額定(ding)容(rong)量(liang)應根(gen)據(ju)用(yong)(yong)電負荷(he)的(de)(de)(de)需要進行選擇(ze)(ze)，不(bu)宜過(guo)大或過(guo)小。