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Simplified Method for Substation Grounding System Design

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Simplified Method for Substation Grounding System Design

Aye Myo Thant | Cho Cho Win | Thant Zaw Oo

Aye Myo Thant | Cho Cho Win | Thant Zaw Oo "Simplified Method for Substation Grounding System Design" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5, August 2019, pp.1798-1801, URL: https://www.ijtsrd.com/papers/ijtsrd26754.pdf

This paper focused 230/66 kV, substation grounding system and calculation results of required parameters at location of Kalay region. The grounding system is essential to protect people working or walking in the vicinity of earthed facilities and equipments against the danger of electric shock. It provides the floor surface either assures an effective insulation from earth potential or effectively equipment to a close mesh grid. Calculations of grounding grid system in the substation area where the top soil-layer resistivity is less than the bottom-layer resistivity can be less the number of ground rod used in the grid because the value of Ground Potential Rise (GPR) is insignificantly different. To get desired parameters such as touch and step voltage criteria for safety, earth resistance, grid resistance, maximum grid current, minimum conductor size and electrode size, maximum fault current level and resistivity of soil are designed in detail consideration.

substation grounding, earth resistance, soil layer resistivity, round potential rise, mesh gird

Volume-3 | Issue-5, August 2019
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

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