Arc ng'anjo yomwe ili pansi pamadzi-yomwe imadziwikanso kuti ng'anjo yamagetsi yamagetsi kapena ng'anjo yolimbana ndi magetsi-imagwiritsidwa ntchito pochepetsa kusungunuka kwa zinthu monga ores, carbonaceous reducing agents, ndi fluxes. Ndi chida chofunikira kwambiri cha mafakitale popangira ma ferroalloys (monga ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ndi alloys silicomanganese) ndi zinthu zopangira mankhwala monga calcium carbide.
Ng'anjoyo imagwira ntchito pogwiritsa ntchito lining'a wa carbonaceous kapena magnesia refractory komanso-maelekitirodi oyakira okha. Imagwira ntchito nthawi zonse yomwe imakhudza pansi pamadzi-arc operation-pomwe maelekitirodi amalowetsedwa mumoto-ndi kugwiritsa ntchito mphamvu zonse za arc ndi kutentha kosasunthika (kupangidwa monga momwe akudutsamo) kuti asungunuke chitsulo; kulipiritsa kumachitika mosalekeza, pomwe kugogoda kwachitsulo chosungunuka ndi slag kumachitika pafupipafupi. Transformer yomwe imagwiritsa ntchito ng'anjoyo imagwira ntchito mosalekeza, yosasunthika ndipo imakhala ndi magetsi otsika a impedance, masitepe angapo owongolera ma voliyumu okhala ndi ma increments ang'onoang'ono, komanso kuchuluka kwakukulu. Ma Transformer amenewa amapezeka m'mitundu iwiri: pa-load voltage regulation and off-circuit (no{9}}excitation) regulation ya voltage. Kawirikawiri, amapereka mphamvu zowonjezera nthawi zonse pamasitepe oyambirira a voteji ndi kutulutsa nthawi zonse pamasitepe otsatirawa.