Impact of energization current on the safe design of distribution substation earth grid

D. Buba, W. F. Wan Ahmad, M. Z.A. Ab Kadir, C. Gomes, J. Jasni, M. Osman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Energization current is a fundamental consideration in designing of distribution substation earth grid. Arbitrary choice of energization current in earth grid design process may lead to technical and economic implications resulting in underestimated or overestimated designs. In this paper, a distribution substation earth grid was designed using SESCAD and executed in MALT module of CDEGS. The energization current was varied by 100, 75, 50 and 25% of the short circuit current available at the secondary terminals of the upstream transformer to determine the impact on safety criteria of the earth grid. Results indicated that, the EPR for 100% fault current was higher, whereas the step and touch voltages were lower. Also, compared to the other cases of short circuit currents, there was no difference in step and touch voltages when the energization currents were varied at 75, 50 and 25%.

Original languageEnglish
Title of host publicationConference Proceeding - 2014 IEEE International Conference on Power and Energy, PECon 2014
EditorsMohd Izhwan Muhamad, Mohammad Nawawi Seroji
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages201-205
Number of pages5
ISBN (Electronic)9781479972975
DOIs
Publication statusPublished - 17 Mar 2014
Event2014 IEEE International Conference on Power and Energy, PECon 2014 - Kuching, Sarawak, Malaysia
Duration: 01 Dec 201403 Dec 2014

Publication series

NameConference Proceeding - 2014 IEEE International Conference on Power and Energy, PECon 2014

Other

Other2014 IEEE International Conference on Power and Energy, PECon 2014
CountryMalaysia
CityKuching, Sarawak
Period01/12/1403/12/14

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Buba, D., Wan Ahmad, W. F., Ab Kadir, M. Z. A., Gomes, C., Jasni, J., & Osman, M. (2014). Impact of energization current on the safe design of distribution substation earth grid. In M. I. Muhamad, & M. N. Seroji (Eds.), Conference Proceeding - 2014 IEEE International Conference on Power and Energy, PECon 2014 (pp. 201-205). [7062441] (Conference Proceeding - 2014 IEEE International Conference on Power and Energy, PECon 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PECON.2014.7062441