Wɔde arc fononoo a ɛwɔ nsu ase-a wɔsan frɛ no anyinam ahoɔden arc fononoo anaa anyinam ahoɔden a ɛko tia fononoo-di dwuma titiriw ma nneɛma a wɔde yɛ nneɛma te sɛ ores, carbonaceous reducing agents, ne fluxes a wɔtew so. Ɛyɛ mfiridwuma mu nnwinnade titiriw a wɔde yɛ ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ne silicomanganese aduru) ne nnuru a wɔde yɛ nneɛma te sɛ calcium carbide.
Fononoo no de carbonaceous anaa magnesia refractory lining ne self-baking electrodes na ɛyɛ adwuma. Ɛnam adeyɛ a ɛkɔ so a ɛfa submerged-arc operation-beae a wɔde electrodes hyɛ fononoo no mu charge-na ɛde arc ahoɔden ne resistance heating (a ɛba bere a current fa charge no mu) nyinaa di dwuma de tew dade no; wɔyɛ chargeing bere nyinaa, bere a tapping of molten dade ne slag ba bere ne bere mu. Transformer a ɛsom fononoo no yɛ adwuma wɔ adesoa a ɛkɔ so, a ɛyɛ den ase na ɛwɔ impedance voltage a ɛba fam, voltage regulation anammɔn pii a ɛwɔ nkɔanim nketenkete, ne overload tumi a ɛkorɔn. Saa transformers yi wɔ ahodoɔ mmienu: on-load voltage regulation ne off-circuit (no-excitation) voltage regulation. Mpɛn pii no, wɔma ahoɔden a ɛkɔ so daa wɔ voltage anammɔn a edi kan no mu ne mprempren ahoɔden a ɛba daa wɔ anammɔn a edi hɔ no mu.