Abstract
The main purpose of the Electrical Power
System is to provide a safe and acceptable electricity
supply to the customers, with a reasonable level of
reliability. Within Eskom, the serious effect of the
unreliable power supply is a perpetual concern.
Distribution network system is still liable for more than
80% of the customer reliability issues with the majority
of faults (70%) occurring on the Medium Voltage (MV)
networks. This paper is aimed at identifying the issues
that contribute to poor reliability within the MV
network and mitigation factors. This is intended to assist
electrical utilities effectively to investigate the affected
network, and to be able to apply strategic reliability
improvement plans to achieve optimal performance. A
case study was used to conduct the research, and the
study area focus was Taunus electrical supply area
within Eskom’s Distribution.