Investigation of Earth Fault Characteristics Under Different Neutral Grounding Methods

Abdallah R. Al-Zyoud; Abdullah Alwadie; Akram Elmitwally; Abdallah Basheer

doi:10.15866/iremos.v8i3.5667

Investigation of Earth Fault Characteristics Under Different Neutral Grounding Methods

Abdallah R. Al-Zyoud⁽¹⁾, Abdullah Alwadie⁽²⁾, Akram Elmitwally^(3*), Abdallah Basheer⁽⁴⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/iremos.v8i3.5667

Abstract

Medium voltage (MV) distribution systems use different methods for grounding the neutral point. Influences of these grounding methods on the single line to ground (SLG) fault characteristics are discussed in this paper. Jordanian MV network is used as a case study. The network has both underground cables and overhead lines. Simulation models are implemented in both MATLAB®/SIMULINK® and DigSilent/Power Factory®softwares. The models allow detailed investigation of the different fault factors and grounding methods. Results are obtained to evaluate the impact of each grounding method on the SLG fault features. Isolated neutral, solid grounding, resistance grounding and Petersen coil (Arc suppression coil) grounding are compared for different fault locations, fault incidence angles, and fault resistances. Current and voltage waveforms, as well as symmetrical components are used to describe the fault case.
Copyright © 2015 Praise Worthy Prize - All rights reserved.

Keywords

Grounding; Petersen Coil; Medium Voltage; Earth Fault

Full Text:

PDF

References

Muhammad Tami AI-Hajri, "Neutral Ground Resistor Monitoring Schemes," IEEE International Symposium on Electrical Insulation, Indianapolis; USA, September 19-22; 2004.
http://dx.doi.org/10.1109/elinsl.2004.1380608

Jeff Roberts, Hector J Altuve, and DaqingHou, "Review of Ground Fault Protection Methods for Grounded, Ungrounded, and Compensated Distribution Systems," Schweitzer Engineering Laboratories, 2001.

Till Welfonder and Volker Leitloff, "Location Strategies and Evaluation of Detection Algorithms for Earth Faults in Compensated MV Distribution Systems," IEEE Transactions on Power Delivery; 15 (4), 2000.
http://dx.doi.org/10.1109/61.891492

D Griffel, Y Harmand, V Leitloff, and J Bergeal, "A New Deal for Safety and Quality on MV Networks," IEEE Transactions on Power Delivery; 12 (4):1428-1433,1997.
http://dx.doi.org/10.1109/61.634156

Mohamed Abdel-Fattah, “A Transient Fault Detection Technique with Varying Fault Detection Window of Earth Modes in Unearthed MV Systems,” 6th international conference on Power Quality and Supply Reliability, Estonia; 2008.
http://dx.doi.org/10.1109/pq.2008.4653758

Ion Statan, Ion Proouc, and Ina Dobrea, "Contributions to the Rational Method of Neutral Grounding with MATLAB/SIMULINK," Technical University of Moldova; 2007.

E T B Gross, "Sensitive Fault Protection for Transmission Lines and Distribution Feeders," AIEE Transactions; 60: 968-972, 1941.
http://dx.doi.org/10.1109/ee.1941.6434536

L F Hunt and J H Vivian, "Sensitive Ground Protection for Radial Distribution Feeders," AIEE Transactions; 59: 84-90, 1940.
http://dx.doi.org/10.1109/ee.1940.6434780

Zamora I, Mazon A J, Antepara F, Puhringer M, and Saenz J R, "Experiences of Neutral Resonant System Implementation In Gorliz Substation," CI RED 17th International Conference on Electricity Distribution, Barcelona, May12-15; 2003.

R van de Sandt, J Lowen, J Paetzold and I Erlich, "Neutral Grounding in Off-Shore Wind Farm Grids," IEEE Bucharest Power Tech Conference; Romania, June 28th – July 2nd, 2009.
http://dx.doi.org/10.1109/ptc.2009.5281999

DumitruToader, Stefan Haragus, ConstantinBlaj, and Iulia Cata, "Numerical Simulation of Single Phase Faults in Medium Voltage Electrical Networks," University of Timisoara, Romania, 2010.

GernotDruml, Andreas Kugi, and Olaf Seifert, "A New Directional Transient Relay for High Ohmic Earth Faults," CI RED 17th International Conference on Electricity Distribution; Barcelona, May12-15; 2003.

T Henriksen, and A Petteteig, "Detection of Earth Fault in a Medium Voltage Distribution Network," Presented at the International Conference on Power System Transients; June4-7; Lyon, France, 2007.

Cerretti, A. ; Gatta, F.M. ; Geri, A. ; Lauria, S. ; Maccioni, M. ;Valtorta, G., "Temporary overvoltages due to ground faults in MV networks," IEEE PowerTech, 2009, Bucharest , pp. 1 – 8, 2009.
http://dx.doi.org/10.1109/ptc.2009.5282140

Mariappan, V. ; Rayees, A.B.S.M. ; AlDahmi, M., "Grounding system analysis to improve protection system performance in distribution networks," 12th IET International Conference on Developments in Power System Protection (DPSP 2014), pp.1 – 6, 2014.
http://dx.doi.org/10.1049/cp.2014.0092

Toman, P. ; Dvorák, J. ; Orságová, J. ; Misák, S., "Experimental analysis of electrical values during earth faults," Electric Power Quality and Supply Reliability Conference (PQ), pp. 185 – 190, 2010.
http://dx.doi.org/10.1109/pq.2010.5550000

SeppoHanninen, MattiLehtoneen, "Characteristics of earth faults in electrical distribution networks with high impedance grounding," Electric Power Systems Research,Volume 44, Issue 3, pp. 155–161, March 1998.

Refbacks

There are currently no refbacks.

Username
Password
Remember me