Quantifying the benefit of network visibility on overhead MV lines

June 17th, 2014, Published in Articles: Energize

 

This paper uses the simplified network reliability framework developed by Eskom to examine the high-level economic benefits of network visibility options. The relative economic benefit of different network visibility options and the order of their deployment is analysed.

Eskom supplies over 4,7-million customers on more than 8000 MV feeders (i.e. 6 – 33 kV) [1]. Most of these feeders were designed on a least-capital-cost basis with limited redundancy and back-feed capability. Focused initiatives are underway to improve the performance of these feeders in order to improve Eskom’s overall network reliability and technical performance.

eon_quantifying-the-benefit

In the Eskom context the term “network visibility” refers to the ability of the control centre to be in control of the power network in real-time. This is achieved through the fitment of telecontrol technologies to the power system to provide real-time measurement and command capabilities. This capability is also known as supervisory command and data acquisition (SCADA). Network visibility in the Eskom context forms part of a bigger group of interventions known as distribution automation.

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