Dr. Nagy Ibrahim Elakalashy

Minoufiya University, Egypt

Email: nagy.elkalashy@gmail.com

Qualifications

2007  D.Sc.Tech., Helsinki University of Technology (TKK), Finland

2002  M.Sc., Minoufiya University, Egypt

1997  B.Sc., Minoufiya University, Egypt

Publications (selected)

1. N. I. Elkalashy and M. Lehtnoen “Locating Earth Faults in MV Systems Using Switching Resistor/Inductor: Modification of Negative Sequence Algorithm” Submitted to VAMP Company,2008, Finland.
2. N. I. Elkalashy and M. Lehtnoen “Sensitivity analysis of the earth-fault location algorithm” Submitted to VAMP Company, 2008, Finland.
3. N. I. Elkalashy and M. Lehtnoen “A Selectivity Technique for Earth Fault Protection in MV Networks. Part I: Unearthed Networks” Submitted to VAMP Company, 2008, Finland.
4. N. I. Elkalashy and M. Lehtnoen “A Selectivity Technique for Earth Fault Protection in MV Networks. Part II: Compensated Networks” Submitted to VAMP Company, 2008, Finland.
5. N. I. Elkalashy and M. Lehtnoen “Earth Fault Locator in MV Networks Using Traveling Wave Type E Mode of Operation” Submitted to VAMP Company, 2009, Finland.
6. N. I. Elkalashy and M. Lehtnoen “Earth Fault Locator Using Traveling Wave Created by Neutral Switching of Unearthed MV Networks” Submitted to VAMP Company, 2009, Finland.
7. N. I. Elkalashy and M. Lehtnoen “Investigation of Arrival Surges for Enhancing Earth Fault Location in Unearthed MV Networks” Submitted to VAMP Company, 2009, Finland.
8. N. I. Elkalashy and M. Lehtnoen “Decentralized Earth Fault Indicator Using Charge Transient Front Slopes for Unearthed/Compensated MV Networks” Submitted to VAMP Company, 2010, Finland.
9. N. I. Elkalashy and M. Lehtnoen “Fault Locator Performance in Accordance with Current Limiting Fuse Protection for LV Feeders” Submitted to VAMP Company, 2010, Finland.
10. N. I. Elkalashy, A. M. Elhaffar, T. A. Kawady, N. G. Tarhuni and M. Lehtonen “Bayesian Selectivity Technique for Earth Fault Protection in Medium Voltage Networks" IEEE Transactions on Power Delivery, vol. 25, no. 4, pp. 2234-2245, Oct. 2010.
11. N. I. Elkalashy, N. G. Tarhuni and M. Lehtonen "Simplified Probabilistic Selectivity Technique for Earth Fault Detection in Unearthed MV Networks" The Institution of Engineering and Technology(IET), Generation, Transmission & Distribution, vol. 3, no. 2, pp. 145-153, Feb. 2009.
12. N. I. Elkalashy, M. Lehtonen, H. A. Darwish, A-M. I. Taalab and M. A. Izzularab "DWT-Based Detection and Transient Power Direction-Based Location of High Impedance Faults Due to Leaning Trees in Unearthed MV Networks" IEEE Transactions on Power Delivery, vol. 23, no. 1 , pp. 94-101,Jan. 2008.
13. N. I. Elkalashy, M. Lehtonen, H. A. Darwish, A-M. I. Taalab and M. A. Izzularab “A Novel Selectivity Technique for High Impedance Arcing Fault Detection in Compensated MV Networks” European Transactions on Electrical Power, ETEP, vol. 18, no. 4, pp. 344-363, May 2008.
14. N. I. Elkalashy, M. Lehtonen, H. A. Darwish, A-M. I. Taalab and M. A. Izzularab "DWT-Based Extraction of Residual Currents throughout Unearthed MV Networks for Detecting High-Impedance Faults due to Leaning Trees" European Transaction on Electrical Power, ETEP, vol. 17, no. 6, pp. 597-614, November/December 2007.
15. N. I. Elkalashy, M. Lehtonen, H. A. Darwish, M. A. Izzularab and A-M. I. Taalab "Modeling and Experimental Verification of High Impedance Arcing Fault in Medium Voltage Networks" IEEE Transactions on Dielectric and Electrical Insulation, vol. 14, no. 2 , pp. 375-383, April 2007.
16. H. A. Darwish and N. I. Elkalashy, "Universal Arc Representation Using EMTP" IEEE Transactions on Power Delivery, vol. 20, no. 2, pp. 772-779, April 2005.
17. N. A. Sabiha, N. I. Elkalashy and M. Lehtonen “Lattice Diagram for Interpreting Overvoltage Profile of Unloaded Feeder Protected Using Surge Arrester” EEUG Meeting 2010, European EMTP-ATP Conference, 16- 18 August 2010, Aalto University School of Science and Technology, Finland.
18. M. Isa, N. I. Elkalashy, G. M. Hashmi and M. Lehtonen "Rogowski Coil Evaluation with Different Fault Conditions in MV Networks" EEUG Meeting 2010, European EMTP-ATP Conference, 16- 18 August 2010, Aalto University School of Science and Technology, Finland.
19. M. Omideora, N. I. Elkalashy, M. Lehtonen and M. H. Abdel-Rahman " Modelling Evaluation of Lightning Arc between Power Line and nearby Tree" EEUG Meeting 2010, European EMTP-ATP Conference, 16- 18 August 2010, Aalto University School of Science and Technology, Finland.
20. N. I. Elkalashy, A. M. Elhaffar, M. Lehtonen and H. A. Darwish “ATP/EMTP Bench Testing of Directionality-Based Selectivity Technique in MV Networks” EEUG Meeting 2009, European EMTPATP Conference, 26- 28 October 2009, Delft, The Netherlands.
21. N. I. Elkalashy, A. M. Elhaffar, N. G. Tarhuni, M. F. Abdelfattah and M. Lehtonen “Windowed Standard Deviation-Based Transient Feature Extraction for Earth Fault Protection in MV Networks” The 44th International Universities Power Engineering Conference (UPEC2009), 1-4 September 2009,Glasgow, Scotland.

Profiles Details:

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