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根據結構和冷(leng)卻介質可分為(wei)空心式(shi)、鐵心式(shi)、干(gan)(gan)式(shi)、油(you)浸(jin)(jin)式(shi)，例如干(gan)(gan)式(shi)空心電(dian)(dian)(dian)抗器(qi)(qi)(qi)、油(you)浸(jin)(jin)鐵心電(dian)(dian)(dian)抗器(qi)(qi)(qi)、油(you)浸(jin)(jin)空心電(dian)(dian)(dian)抗器(qi)(qi)(qi)、鉗式(shi)干(gan)(gan)式(shi)空心電(dian)(dian)(dian)抗器(qi)(qi)(qi)、纏繞式(shi)干(gan)(gan)式(shi)空心電(dian)(dian)(dian)抗器(qi)(qi)(qi)、水(shui)泥電(dian)(dian)(dian)抗器(qi)(qi)(qi)等。

隔(ge)(ge)離(li)變壓器的主要功能是將初級側(ce)與次(ci)級側(ce)全部隔(ge)(ge)離(li)，并隔(ge)(ge)離(li)電(dian)路。另外，利(li)用(yong)其鐵(tie)芯的高(gao)頻損耗(hao)來抑制(zhi)高(gao)頻雜波(bo)引入控(kong)制(zhi)回路。隔(ge)(ge)離(li)變壓器只能用(yong)在供電(dian)范圍小，線路短的場合，使二(er)次(ci)懸浮到地。

自(zi)耦變(bian)壓器是指一(yi)次繞組(zu)(zu)和二(er)次繞組(zu)(zu)在同一(yi)繞組(zu)(zu)上，一(yi)次繞組(zu)(zu)和二(er)次繞組(zu)(zu)直接串(chuan)聯自(zi)耦的變(bian)壓器。按結構可細分為調壓式和固定式。

漆包(bao)線(xian)(xian)(xian)(xian)，沙(sha)包(bao)線(xian)(xian)(xian)(xian)，絲包(bao)線(xian)(xian)(xian)(xian)，較常用的(de)漆包(bao)線(xian)(xian)(xian)(xian)。對導線(xian)(xian)(xian)(xian)的(de)要求是(shi)良好(hao)的(de)導電(dian)性(xing)、絕緣漆層足夠的(de)耐熱(re)性(xing)和一定的(de)耐腐蝕性(xing)。一般情況(kuang)下，建議使用Q2型強度(du)高的(de)聚酯(zhi)漆包(bao)線(xian)(xian)(xian)(xian)。