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解(jie)析變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)是利用電(dian)(dian)磁(ci)感應的原理來改變(bian)交流(liu)電(dian)(dian)壓(ya)(ya)的裝置，主要構件是初級線(xian)(xian)圈(quan)、次級線(xian)(xian)圈(quan)和鐵芯（磁(ci)芯）。主要功能(neng)有：電(dian)(dian)壓(ya)(ya)變(bian)換(huan)、電(dian)(dian)流(liu)變(bian)換(huan)、阻(zu)抗(kang)變(bian)換(huan)、隔離、穩壓(ya)(ya)（磁(ci)飽和變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)）等。按(an)用途可以分為：電(dian)(dian)力變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)和特殊變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)（電(dian)(dian)爐變(bian)、整流(liu)變(bian)、工頻試驗變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、調壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、礦用變(bian)、音頻變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、中頻變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、高(gao)頻變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、沖擊變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、儀用變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)子變(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)抗(kang)器(qi)(qi)(qi)(qi)(qi)(qi)、互感器(qi)(qi)(qi)(qi)(qi)(qi)等）。電(dian)(dian)路符(fu)號常用T當作編號的開頭.例: T01, T201等。