互感器(qi)又稱(cheng)為(wei)儀用變壓(ya)(ya)(ya)器(qi)，是(shi)電(dian)(dian)流互感器(qi)和電(dian)(dian)壓(ya)(ya)(ya)互感器(qi)的(de)統(tong)稱(cheng)。能將高(gao)電(dian)(dian)壓(ya)(ya)(ya)變成(cheng)低電(dian)(dian)壓(ya)(ya)(ya)、大電(dian)(dian)流變成(cheng)小電(dian)(dian)流，用于量測或保護系統(tong)。其功能主要是(shi)將高(gao)電(dian)(dian)壓(ya)(ya)(ya)或大電(dian)(dian)流按比例變換成(cheng)標準低電(dian)(dian)壓(ya)(ya)(ya)（100V）或標準小電流（5A或1A，均指(zhi)額(e)定值），以便實現(xian)測(ce)量儀(yi)表、保護設(she)備及自動控制設(she)備的標準(zhun)化、小(xiao)型(xing)化。同時互(hu)感(gan)器還可用來隔(ge)開高(gao)電壓(ya)系統，以保證人身(shen)和設(she)備的安全。……進入互感器知識講堂>>