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        電(dian)(dian)爐(lu)(lu)變壓(ya)器是(shi)專為(wei)各(ge)種電(dian)(dian)爐(lu)(lu)提供(gong)電(dian)(dian)源的變壓(ya)器，它能(neng)將較(jiao)高的電(dian)(dian)壓(ya)轉換為(wei)較(jiao)低的適合電(dian)(dian)爐(lu)(lu)用的電(dian)(dian)壓(ya)。電爐變壓器用于機械

零件加熱(re)、熱(re)處(chu)理、粉末冶金(jin)燒(shao)結、有色金(jin)屬熔煉等的電(dian)(dian)阻(zu)爐、電(dian)(dian)弧爐和(he)鹽浴(yu)爐。工業用電(dian)(dian)爐變(bian)壓(ya)(ya)(ya)器大致可(ke)分為3類：電(dian)(dian)阻(zu)爐變(bian)壓(ya)(ya)(ya)器、電(dian)(dian)弧爐變(bian)壓(ya)(ya)(ya)器和(he)感(gan)應(ying)爐變(bian)壓(ya)(ya)(ya)器。由于其(qi)發熱(re)體的電(dian)(dian)阻(zu)太小，或者在(zai)升溫(wen)過(guo)程中發熱(re)體電(dian)(dian)阻(zu)的變(bian)化(hua)太大，所(suo)以(yi)需要在(zai)爐子(zi)和(he)電(dian)(dian)力網之(zhi)間配備(bei)一臺電(dian)(dian)阻(zu)爐變(bian)壓(ya)(ya)(ya)器，以(yi)降低和(he)調節電(dian)(dian)爐的輸入電(dian)(dian)壓(ya)(ya)(ya)。

      小容(rong)量、低電(dian)壓的電(dian)阻爐變壓器(qi)(qi)與鹽浴爐變壓器(qi)(qi)多為(wei)干式(shi)變壓器(qi)(qi)，帶箱殼(ke)，自(zi)然冷卻；中等容(rong)量（數百至數千(qian)伏安(an)）的電(dian)阻爐變壓器(qi)(qi)多為(wei)油(you)浸自(zi)冷式(shi)變壓器(qi)(qi)；大容(rong)量的則為(wei)強迫油(you)循環(huan)水冷式(shi)變壓器(qi)(qi)。

   結構特點：

      電爐變壓器的鐵芯采用優質取向硅鋼片，全自動剪切線加工，45度全斜接縫、不沖孔、無緯玻璃粘帶綁扎工藝制造。線圈采用(yong)先進的(de)主縱絕(jue)緣結構，合理(li)選(xuan)擇繞組(zu)的(de)結構和(he)絕(jue)緣，保證(zheng)繞組(zu)有足夠的(de)機械強度(du)。具有承受短路能(neng)力強、過(guo)載能(neng)力強、效率高(gao)、低損耗、安全、可靠等特(te)點。

   工作原理：

     電(dian)爐變壓(ya)(ya)器是煉(lian)鋼電(dian)弧爐的(de)電(dian)源變壓(ya)(ya)器，電(dian)爐變壓(ya)(ya)器容量(liang)根據電(dian)弧爐大小及冶煉(lian)工藝配置(zhi)。它(ta)通(tong)過(guo)調壓(ya)(ya)方(fang)式(shi)(shi)滿足冶(ye)煉工藝的(de)(de)要(yao)求。調壓(ya)(ya)方(fang)式(shi)(shi)分為有載(zai)調壓(ya)(ya)和(he)無勵磁調壓(ya)(ya)兩種。有載(zai)調壓(ya)(ya)的(de)(de)大型電(dian)爐(lu)(lu)變(bian)壓(ya)(ya)器(qi)(qi)不帶(dai)(dai)串聯電(dian)抗(kang)器(qi)(qi)，無勵磁調壓(ya)(ya)的(de)(de)中小型電(dian)爐(lu)(lu)變(bian)壓(ya)(ya)器(qi)(qi)其結構形式(shi)(shi)可(ke)分為帶(dai)(dai)串聯電(dian)抗(kang)器(qi)(qi)的(de)(de)和(he)不帶(dai)(dai)電(dian)抗(kang)器(qi)(qi)的(de)(de)兩種。前(qian)者靠(kao)串聯電(dian)抗(kang)器(qi)(qi)的(de)(de)投入和(he)切(qie)除來(lai)改變(bian)阻抗(kang)。而后(hou)者則靠(kao)改變(bian)電(dian)爐(lu)(lu)變(bian)壓(ya)(ya)器(qi)(qi)自(zi)身高壓(ya)(ya)繞組的(de)(de)聯結方(fang)式(shi)(shi)來(lai)改變(bian)繞組阻抗(kang)。

電爐(lu)變(bian)壓器與(yu)普通變(bian)壓器區別

1、過載能力要求不(bu)同。

2、抗短路能力不同。

3、運行時還要(yao)求供(gong)電(dian)的變壓(ya)器能調節(jie)電(dian)壓(ya)。

普(pu)通(tong)變壓(ya)器

          變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)（Transformer）是(shi)(shi)利用(yong)電(dian)(dian)(dian)磁(ci)感(gan)應(ying)的(de)(de)(de)原理來改變(bian)(bian)(bian)(bian)交(jiao)流(liu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)裝置，主(zhu)要構件是(shi)(shi)初級(ji)線圈(quan)、次(ci)級(ji)線圈(quan)和(he)鐵芯(xin)（磁(ci)芯(xin)）。主(zhu)要功能(neng)有：電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)變(bian)(bian)(bian)(bian)換、電(dian)(dian)(dian)流(liu)變(bian)(bian)(bian)(bian)換、阻抗(kang)變(bian)(bian)(bian)(bian)換、隔離、穩壓(ya)(ya)(ya)(ya)(ya)（磁(ci)飽和(he)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)）等。按用(yong)途可以(yi)分為：電(dian)(dian)(dian)力變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)和(he)特殊變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)（電(dian)(dian)(dian)爐變(bian)(bian)(bian)(bian)、整流(liu)變(bian)(bian)(bian)(bian)、工頻試驗變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、調壓(ya)(ya)(ya)(ya)(ya)器(qi)、礦用(yong)變(bian)(bian)(bian)(bian)、音(yin)頻變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、中頻變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、高頻變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、沖擊變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、儀用(yong)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、電(dian)(dian)(dian)子(zi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)、電(dian)(dian)(dian)抗(kang)器(qi)、互感(gan)器(qi)等）。電(dian)(dian)(dian)路符號(hao)常(chang)用(yong)T當作編(bian)號(hao)的(de)(de)(de)開頭。例：T01，T201等。

        總的來說，電(dian)爐(lu)變(bian)壓(ya)(ya)(ya)(ya)器(qi)一般是單相變(bian)壓(ya)(ya)(ya)(ya)器(qi)。因為(wei)電(dian)爐(lu)發熱材料的原因，輸出(chu)的電(dian)壓(ya)(ya)(ya)(ya)一般較低，輸出(chu)電(dian)流較大，所以它的漏(lou)抗比一般變(bian)壓(ya)(ya)(ya)(ya)器(qi)小。有的電(dian)爐(lu)變(bian)壓(ya)(ya)(ya)(ya)器(qi)初級(ji)有多個分接點(dian)，可以粗調(diao)(diao)輸出(chu)電(dian)流，由初級(ji)的調(diao)(diao)壓(ya)(ya)(ya)(ya)器(qi)（感應(ying)式調(diao)(diao)壓(ya)(ya)(ya)(ya)器(qi)或晶閘管調(diao)(diao)壓(ya)(ya)(ya)(ya)器(qi)）細調(diao)(diao)電(dian)流。