To plan ahead and avoid disruption to the power supply, utilities use models to anticipate ... changes in voltage or current affect full-sized power distribution systems. For the black box modeling ...

A planned power outage will leave parts of Tshwane without electricity for seven hours on Thursday. Here are the affected ...

and the KKIA Main Distribution Substation (PPU). "With the completion of this project, the duration of electricity supply disruptions can be reduced and the process of repairing electricity supply ...