Amakhebuli angaphezu kuka-35kV ikakhulukazi amakhebuli ane-single-core aneshethi yensimbi.Njengoba umgodla wensimbi wekhebula eliwumgogodla owodwa uncike ngomugqa wensimu kazibuthe okhiqizwe i-AC yamanje ocingweni oluwumgogodla, amaphethelo amabili ekhebula eliwumgogodla owodwa ane-voltage ephezulu eyenziwe.