Design Optimization of Distance Grid and Ground Rod in The Earth System

Authors

  • Deni Almanda Universitas Muhammadiyah Jakarta
  • A I Ramadhan Universitas Muhammadiyah Jakarta

DOI:

https://doi.org/10.24853/jasat.2.2.53-58

Keywords:

switchyard earthing system, grid, ground rod, quality, cost

Abstract

One of the main factors in securing an electric power system is the earthing system. The earthing system in the generating unit is closely related to the switchyard. Switchyard earthing system design is done by adjusting the grid distance and ground rod length to get the most optimal quality and cost combination. The definition of optimal conditions in this case is limited to circumstances where there is a combination of quality that does not exceed the technical tolerance threshold and has cost efficiency. The design of the switchyard earthing system was taken as a case study. Technical standards are carried out based on IEEE Std 80 - 2000. Calculations for obtaining technical parameters and costs are carried out one-by-one in the range of grid spacing and length of certain ground rods to determine the optimum point using MATLAB-GUI as a programming tool and MATLAB R2011a as a tool mathematical computing. Calculation results and analysis concluded that the grid distance of 23 m and the length of the 6 m ground rod is the best choice in the optimization of this earthing system by meeting the safety quality criteria for earth resistance is Rg = 0.13806 Ω less than 0.5 Ω with a minimum cost of Rp. 1,220,104,730.

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Author Biography

Deni Almanda, Universitas Muhammadiyah Jakarta

Teknik Elektro

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Published

2019-12-30

Issue

Vol. 2 No. 2 (2019): Journal of Applied Sciences and Advanced Technology

Section

Articles

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