Foro min bɛ ji la-a bɛ fɔ fana ko kuran foro walima kuran rezisti foro-o bɛ kɛ fɔlɔ ka fɛnɲɛnamafagalanw wulicogo dɔgɔya i n’a fɔ fɛnɲɛnamafagalanw, gazi dɔgɔyalanw, ani flux. O ye izini minɛn jɔnjɔn ye min bɛ kɛ ka nɛgɛso dilan (i n’a fɔ ferosilikɔni, feromanganɛsi, ferokɔrɔmu, ferotungsten, ani silikomanganɛsi sɔgɔlenw) ani kemikɛlifɛn fɔlɔw i n’a fɔ kalisiyɔmu karɔbɔli.
Foro in bɛ baara kɛ ni karɔbɔni walima manje ye min tɛ se ka wuli ani yɛrɛ{0}}tobilikɛminɛnw. A bɛ baara kɛ ni taabolo ye min bɛ senna, min bɛ kɛ ni jikuruw baara ye-yɔrɔ min na, elekitorodew bɛ don foro charge kɔnɔ-wa a bɛ baara kɛ ni arc fanga ni rezisti sumaya (min bɛ sɔrɔ ni kuran tɛmɛna charge fɛ) fila bɛɛ ye walasa ka nɛgɛ kasa bɔ chargement bɛ kɛ tuma bɛɛ, ka sɔrɔ nɛgɛ wulilenw ni slag tapping bɛ kɛ tuma ni tuma. Transformateur min bɛ baara kɛ foro la, o bɛ baara kɛ doni basigilen, sabatilen kɔnɔ, wa a bɛ ni impedance voltage dɔgɔman ye, voltage regulation steps caman bɛ kɛ ni dɔ farali misɛnninw ye, ani overload seko ka bon. O transformateur ninnu bɛ sɔrɔ suguya fila la: on-load voltage regulation ani off-circuit (no-excitation) voltage regulation. A ka c’a la, u bɛ fanga bɔli basigilen Di tension (volta) fɔlɔw la ani kuran bɔli basigilen di taamaʃyɛnw nataw la.