【電(dian)力(li)變(bian)壓器】電(dian)力(li)變(bian)壓器規格型號 電(dian)力(li)變(bian)壓器分(fen)類及作用

電力變壓器型號規格有哪些

電力變(bian)壓器型(xing)(xing)號有哪些？主要有SZ11型(xing)(xing)-35KV系(xi)列油浸式(shi)、SCB10型(xing)(xing)-10KV系(xi)列干(gan)式(shi)、S11型(xing)(xing)-10KV系(xi)列油浸式(shi)、SCB10型(xing)(xing)-20KV系(xi)列干(gan)式(shi)、SB11型(xing)(xing)-20KV系(xi)列油浸式(shi)。變(bian)壓器按冷卻方式(shi)來(lai)分為油浸式(shi)和干(gan)式(shi)變(bian)兩(liang)種。

變壓器具體型號(hao)(hao)每個廠家叫法可(ke)能(neng)都有細(xi)微差別，市面其它的型號(hao)(hao)還有如(ru)下(xia)：35kV級(ji)S9-~系(xi)(xi)列(lie)(lie)油(you)浸(jin)式(shi)(shi)(shi)電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、SG-系(xi)(xi)列(lie)(lie)三相干(gan)(gan)式(shi)(shi)(shi)隔(ge)離變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、CKSC系(xi)(xi)列(lie)(lie)串聯電(dian)(dian)(dian)抗(kang)器(qi)(qi)、10KV級(ji)ZPSG系(xi)(xi)列(lie)(lie)干(gan)(gan)式(shi)(shi)(shi)整(zheng)流(liu)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、KBSG礦用防爆干(gan)(gan)式(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、35kV級(ji)S9-~系(xi)(xi)列(lie)(lie)油(you)浸(jin)式(shi)(shi)(shi)電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、SG10型H級(ji)絕緣(yuan)干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、35KV級(ji)ZS系(xi)(xi)列(lie)(lie)油(you)浸(jin)整(zheng)流(liu)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、10kV級(ji)S9、S11系(xi)(xi)列(lie)(lie)油(you)浸(jin)式(shi)(shi)(shi)電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、S（B）H-M非晶合金卷鐵(tie)芯(xin)電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)、SGB11-R卷鐵(tie)芯(xin)H級(ji)非包封線圈(quan)干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)等(deng)一系(xi)(xi)列(lie)(lie)眾(zhong)多型號(hao)(hao)。

電力變壓器分類

電(dian)(dian)力(li)變壓(ya)器按用途分類：升壓(ya)（發(fa)電(dian)(dian)廠(chang)6.3kV/10.5kV或10.5kV/110kV等）、聯絡（變電(dian)(dian)站間用220kV/110kV或110kV/10.5kV）、降(jiang)壓(ya)（配電(dian)(dian)用35kV/0.4kV或10.5kV/0.4kV）。

電(dian)力變壓器按相數分(fen)類：單相、三相。

電力變壓(ya)(ya)器按(an)繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)分類：雙繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)（每(mei)相(xiang)(xiang)(xiang)裝在同一(yi)(yi)(yi)鐵(tie)心上，原(yuan)(yuan)、副繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)分開(kai)繞(rao)(rao)(rao)制、相(xiang)(xiang)(xiang)互絕緣）、三(san)(san)(san)繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)（每(mei)相(xiang)(xiang)(xiang)有三(san)(san)(san)個繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)，原(yuan)(yuan)、副繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)分開(kai)繞(rao)(rao)(rao)制、相(xiang)(xiang)(xiang)互絕緣）、自耦變壓(ya)(ya)器（一(yi)(yi)(yi)套(tao)繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)中間抽頭(tou)作為一(yi)(yi)(yi)次或(huo)二(er)次輸出(chu)）。三(san)(san)(san)繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)變壓(ya)(ya)器要求(qiu)一(yi)(yi)(yi)次繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)的容(rong)(rong)量大于(yu)(yu)或(huo)等于(yu)(yu)二(er)、三(san)(san)(san)次繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)的容(rong)(rong)量。三(san)(san)(san)繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)容(rong)(rong)量的百分比按(an)高壓(ya)(ya)、中壓(ya)(ya)、低(di)壓(ya)(ya)順序有：100/100/100、100/50/100、100/100/50，要求(qiu)二(er)、三(san)(san)(san)次繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)均(jun)不能滿載(zai)運行。一(yi)(yi)(yi)般(ban)三(san)(san)(san)次繞(rao)(rao)(rao)組(zu)(zu)(zu)(zu)(zu)電壓(ya)(ya)較低(di)，多用(yong)于(yu)(yu)近(jin)區供電或(huo)接補償設備，用(yong)于(yu)(yu)連接三(san)(san)(san)個電壓(ya)(ya)等級。自耦變壓(ya)(ya)器：有升壓(ya)(ya)或(huo)降壓(ya)(ya)二(er)種，因其(qi)損耗(hao)小(xiao)、重量輕、使(shi)用(yong)經濟，為此在超高壓(ya)(ya)電網中應用(yong)較多。小(xiao)型自耦變壓(ya)(ya)器常用(yong)的型號為400V/36V（24V），用(yong)于(yu)(yu)安全照明(ming)等設備供電。

電力變(bian)壓器按絕(jue)(jue)緣介質分類(lei)：油浸變(bian)壓器（阻(zu)(zu)燃型(xing)、非阻(zu)(zu)燃型(xing)）、干式變(bian)壓器、110kVSF6氣體絕(jue)(jue)緣變(bian)壓器。

電(dian)力變壓器鐵心均為芯式結構。

一般通信工(gong)程中所(suo)配(pei)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(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)是發電(dian)(dian)(dian)廠和(he)變(bian)電(dian)(dian)(dian)所的主要(yao)設備(bei)之一。變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)的作用是多方面的不僅能(neng)升高電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)把(ba)電(dian)(dian)(dian)能(neng)送(song)(song)到用電(dian)(dian)(dian)地(di)區，還能(neng)把(ba)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)降低為各級使用電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，以滿足用電(dian)(dian)(dian)的需要(yao)。總之，升壓(ya)(ya)(ya)(ya)(ya)(ya)與降壓(ya)(ya)(ya)(ya)(ya)(ya)都必(bi)須由變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)來完成(cheng)(cheng)。在(zai)電(dian)(dian)(dian)力系統(tong)傳送(song)(song)電(dian)(dian)(dian)能(neng)的過程中，必(bi)然(ran)會產生電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)和(he)功率(lv)(lv)兩部分(fen)損(sun)耗(hao)(hao)，在(zai)輸送(song)(song)同一功率(lv)(lv)時電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)損(sun)耗(hao)(hao)與電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)成(cheng)(cheng)反比，功率(lv)(lv)損(sun)耗(hao)(hao)與電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的平方成(cheng)(cheng)反比。利(li)用變(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)器(qi)(qi)提高電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，減(jian)少了送(song)(song)電(dian)(dian)(dian)損(sun)失。

變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)是由繞(rao)在同(tong)一鐵芯(xin)上(shang)的(de)(de)(de)兩個或兩個以上(shang)的(de)(de)(de)線圈繞(rao)組組成，繞(rao)組之間是通過(guo)交變(bian)(bian)磁(ci)場而(er)聯系著并按電磁(ci)感應原理(li)工作(zuo)。變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)安裝位置應考慮便于(yu)運(yun)行(xing)、檢修和運(yun)輸，同(tong)時應選擇(ze)安全可(ke)靠的(de)(de)(de)地方(fang)。在使(shi)用變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)時必須合理(li)地選用變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)額定容量。變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)空載(zai)運(yun)行(xing)時，需(xu)用較大(da)的(de)(de)(de)無(wu)功(gong)功(gong)率(lv)。這(zhe)些(xie)無(wu)功(gong)功(gong)率(lv)要(yao)由供電系統(tong)供給。變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)容量若(ruo)選擇(ze)過(guo)大(da)，不(bu)但增加了初(chu)投資，而(er)且使(shi)變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)長(chang)期處(chu)于(yu)空載(zai)或輕(qing)載(zai)運(yun)行(xing)，使(shi)空載(zai)損耗(hao)的(de)(de)(de)比(bi)重增大(da)，功(gong)率(lv)因(yin)數降低，網絡損耗(hao)增加，這(zhe)樣運(yun)行(xing)既不(bu)經濟又不(bu)合理(li)。變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)容量選擇(ze)過(guo)小，會使(shi)變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)長(chang)期過(guo)負(fu)荷(he)，易損壞設備(bei)。因(yin)此，變(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)額定容量應根據用電負(fu)荷(he)的(de)(de)(de)需(xu)要(yao)進行(xing)選擇(ze)，不(bu)宜(yi)過(guo)大(da)或過(guo)小。