I-VCB ye-VCB yangaphandle ene-voltage ephezulu ye-ZW32-12, ifanele uhlelo lwamandla olunezigaba ezintathu olune-AC 50HZ, i-voltage engu-10-12KV, esetshenziswa njengokwephula, ukuvala ugesi wamanje. Inomsebenzi wokuvikela umthwalo omningi kanye ne-short circuit, ingahlangabezana nezidingo zokulawula nokulinganisa. Ingasetshenziswa futhi njengokulawula okude, ukuqapha, njll. Ifanele ukulawula nokuvikela imishini yesistimu yamandla yesiteshi esincane kanye nebhizinisi lezimayini, futhi ifanele izindawo ezivame ukusebenza kugridi yamandla yasemakhaya.
