隧道(dao)升壓變壓器(qi)是(shi)一(yi)種用(yong)(yong)于將輸(shu)電(dian)線(xian)路的(de)(de)低電(dian)壓交(jiao)流電(dian)升壓為適合輸(shu)送和(he)使(shi)用(yong)(yong)的(de)(de)高電(dian)壓交(jiao)流電(dian)的(de)(de)變壓器(qi)。它通(tong)常安裝在隧道(dao)內，通(tong)過將輸(shu)電(dian)線(xian)路的(de)(de)電(dian)壓從(cong)低電(dian)提高電(dian)壓，減小線(xian)路損(sun)耗，以滿足隧道(dao)掘進機，風機供電(dian)需求(qiu)。
