變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)經常(chang)與鄂(e)爾(er)多斯機(ji)電(dian)(dian)工程緊(jin)密(mi)的聯系在(zai)一起，變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)是(shi)利(li)用電(dian)(dian)磁(ci)感應的原理來改變(bian)(bian)(bian)交流(liu)(liu)電(dian)(dian)壓的裝置(zhi)，主要(yao)構件是(shi)初級線圈、次級線圈和(he)鐵芯(xin)（磁(ci)芯(xin)）。主要(yao)功能有：電(dian)(dian)壓變(bian)(bian)(bian)換(huan)、電(dian)(dian)流(liu)(liu)變(bian)(bian)(bian)換(huan)、阻抗變(bian)(bian)(bian)換(huan)、穩壓（磁(ci)飽和(he)變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)）等(deng)。按用途(tu)可以分為：電(dian)(dian)力變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)和(he)特(te)殊(shu)變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)（電(dian)(dian)爐變(bian)(bian)(bian)、整流(liu)(liu)變(bian)(bian)(bian)、工頻試驗變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、調(diao)壓器(qi)(qi)(qi)(qi)(qi)(qi)、礦(kuang)用變(bian)(bian)(bian)、音頻變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、中頻變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、高頻變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、沖擊(ji)變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、儀(yi)用變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)子變(bian)(bian)(bian)壓器(qi)(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)抗器(qi)(qi)(qi)(qi)(qi)(qi)、互感器(qi)(qi)(qi)(qi)(qi)(qi)等(deng)）。電(dian)(dian)路符號常(chang)用T當(dang)作(zuo)編號的開頭.例(li): T01，T201等(deng)。