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Reseach Article

Computational Modelling of a Novel Three Dimensional Ground Mat for 33/11kV Central Switching Station

by M. Hariharan, S. Roger
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 181 - Number 1
Year of Publication: 2018
Authors: M. Hariharan, S. Roger
10.5120/ijca2018917387

M. Hariharan, S. Roger . Computational Modelling of a Novel Three Dimensional Ground Mat for 33/11kV Central Switching Station. International Journal of Computer Applications. 181, 1 ( Jul 2018), 16-20. DOI=10.5120/ijca2018917387

@article{ 10.5120/ijca2018917387,
author = { M. Hariharan, S. Roger },
title = { Computational Modelling of a Novel Three Dimensional Ground Mat for 33/11kV Central Switching Station },
journal = { International Journal of Computer Applications },
issue_date = { Jul 2018 },
volume = { 181 },
number = { 1 },
month = { Jul },
year = { 2018 },
issn = { 0975-8887 },
pages = { 16-20 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume181/number1/29679-2018917387/ },
doi = { 10.5120/ijca2018917387 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-07T01:04:36.361080+05:30
%A M. Hariharan
%A S. Roger
%T Computational Modelling of a Novel Three Dimensional Ground Mat for 33/11kV Central Switching Station
%J International Journal of Computer Applications
%@ 0975-8887
%V 181
%N 1
%P 16-20
%D 2018
%I Foundation of Computer Science (FCS), NY, USA
Abstract

This paper presents a novel concept being followed in the computational design of a ground mat for a 33/11kV central switching station at dry loose sandy soil containing high soil resistivity. The area available for mat is less and unsymmetrical. In areas where the soil resistivity is high and the space available for substation ground mat is less, it may not be possible to meet the expected safe touch and step voltage criteria with conventional ground mat design. A methodical analysis of design of three dimensional ground mat is performed by adopting wenner four pin method of computation. The major advantage behind this model is that it inherently develops a safe touch and step potential with the electrical apparatus considerably even at unusual working conditions. Since the location has high resistive soil and multilayered, a novel three dimensional ground mat with controlled safe region is designed and analyzed with Auto Grid Pro (application for grounding studies) software.

References
  1. “IEEE Guide for Safety in AC Substation Grounding”, IEEE Std 80-2000.
  2. “IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System”, IEEE Std 80-2012.
  3. “Code of Practice for Earthing”, IS: 3043 – 1987.
  4. “IEEE Recommended Practice for Industrial and Commercial Power Systems Analysis (Brown Book)”, IEEE Std 399-1997.
  5. “IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Ground System Part 1: Normal Measurements”, IEEE Std 81-1983.
  6. “IEEE Guide for Safety in ac Substation Grounding”, IEEE Std 80-1986.
  7. “IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault”, ANSl/IEEE Std.367-1987, IEEE - New York.
  8. K. Sushma Reddy, G. S. Raju, Poonam Upadhyay, “Design of optimal grounding mats for high voltage substation”, International Conference on Advances in Power Conversion and Energy Technologies,IEEE, pp 1 - 4, 2012.
  9. Lonnie E. Crawford, M. Shan Griffith,” A Closer Look at ``the Facts of Life'' in Ground Mat Design”, IEEE Transactions on Industry Applications, Volume: IA-15, Issue: 3, pp: 241 – 250, 1979.
  10. B.R.Gupta and B.Thapar, "Impulse Impedance of grounding grids", IEEE transactions on power apparatus and systems, Vol.PAS-99, No.6, Nov-Dec 1980.
  11. R.Velazquez and D.Mukhedkar, "Analytical modeling of grounding electrodes transient behavior", paper presented at, IEEE/PES 1983, summer meeting, Los Angeles, California, July 17-22, 1983.
  12. R. Kosztaluk, et al. "Field Measurements of Touch and Step Voltages", IEEE Trans, Vol PAS -103, No. 11, Nov. 1984.
  13. M.Ramamoorty, M.M.Babu Narayanan, S. Parameswaran, D.Mukhedkar, "Transient Performance of Grounding Grids", IEEE transactions on power delivery, Vol 4, No 4, October 1989.
  14. K. D. Pham, “Design a safe grounding system for rural electric power distribution Substations” Papers Presented at the 34th Annual Conference on Rural Electric Power, pp: C1/1 - C1/4, 1990.
  15. P. Lipavsky, R. E. Nienaber, “Measurement of ground potential difference at power substations” IEEE Transactions on Power Delivery, Volume: 6, Issue: 1, pp: 62 69, 1991.
Index Terms

Computer Science
Information Sciences

Keywords

Ground Potential Rise (GPR) Touch Potential Step Potential Ground Mat Soil Resistivity Grounding Grid Ground Rods Grounding Electrodes.