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Abstract
Distribution protection equipment have become so sophisticated and advanced in recent years that they can accommodate numerous protection functions and capabilities that once were only in the realm of transmission networks. As such, protective equipment in distribution networks can now match the functionality of the same devices in transmission. Similarly, test equipment designed for verification of protection systems have become very practicable in application to both transmission and distribution networks’ equipment and assets. There is now a need to apply design principles in distribution networks that are aligned to transmission concepts. This paper aims to put forward a case for earth grid design in distribution networks by showcasing a study in which transmission design and testing principles were applied to a distribution site, and discuss the results obtained from this approach.
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Notes on contributors
D. Sharafi
Dean Sharafi completed his technical education in the field of Applied Physics and Electrical Engineering Power Systems. His field of work has mainly been the protection of power systems, with a strong focus on testing and commissioning. He has worked as a protection, field electrical, power system and networks engineer. He has been working for Western Power in Perth since 2003 and managed the Transmission Field Engineering section of the company from 2005 to 2008. At present, Dean is managing the Maintenance Engineering Section for the Transmission Delivery Group of Western Power. In 2008, he graduated from Curtin School of Business. He also lectures on a part-time basis at Curtin University of Technology on the subject of Power System Grounding for a postgraduate program.