Optimization and Prediction of  Dielectric Behavior of Air Gaps 


Click here to edit subtitle


Athanasios Maglaras was born in Greece in 1948. He received the Electrical and Mechanical Engineering degree from the National Technical University of Athens, in Greece, in 1971, followed by a MSc degree in 1985, and a PhD from the National Technical University of Athens in 2010.

He has been a designer and supervising engineer for industrial and building electromechanical installations from 1972.

He was an electrical and mechanical supervising engineer for the operation and the maintenance of many factories, like the Hellenic Steel Co in Thessaloniki, the Biocarpet Company and, the Biokeral Company in Larissa, etc., from 1973 to 1985.

He is a member of the Technical Chamber of Greece (TEE), the IEEE, and the CIGRE.

He was a seminar teacher in supplementary education projects for engineers (1996-2005) and initial training for unemployed graduates, (1988-2005).

He had been a teacher in Secondary Technical Education for 5 years (1972-1980), and an assistant professor of K.A.T.E.E. (now T.E.I.) of Thessaloniki for 2 years (1975-1976). Since 1980 he is a Professor of the Technological Educational Institute (T.E.I.) of Larissa in Greece. He had been Head of the Electrical Engineering Department of the T.E.I. of Larissa for 6 years, supervisor in one of the three course areas (power sector) of the department for 8 years, a member of its Education and Research committee of T.E.I. of Larissa for 3 years, and he has been the Coordinator of the High Voltage and CAD/CAE Laboratory in the T.E.I. of Larissa since 1990. The main research interests are High Voltages, Electromagnetic Field Analysis, and CAD/CAE. He is an author of 5 books for the T.E.I. concerning High Voltages, Electric Fields, Electric circuits, CAD/CAE and Thermodynamics, and of more than 30 papers in scientific magazines, conferences, and Pan-Hellenic and local meetings, and has many citations. He has been a member of organizing and scientific committees of many international and Pan Hellenic conferences and meetings, and has participated in more than 25 conferences and meetings.

He was Coordinator or basic partner in 8 European research and educational projects for the T.E.I of Larissa and the Secondary Technical Education from 1996 to 2005, within the Operational Programme for Education and Initial Training I and II, and partner in 2 research projects for the T.E.I. of Larissa, within the Archimedes European program. He was also the main researcher in another project concerning the investigation of the dielectric behavior of small air gaps, which led to the completion of his PhD thesis in the National Technical University of Athens (N.T.U.A.). Within that project besides thoroughly investigating the dielectric behavior of air gaps with or without barrier, two new phenomena for High Voltage applications were presented and studied for the first time, a) the Effect of Grounding and b) the Effect of Corona Current, while the combination of theoretical and experimental results led to the formation of a new expression of the 3rd Law of Newton (Action-Reaction), similar to Lenz’s Law.


Maglaras A., Topalis F. V., “Influence of Ground and Corona Currents on Dielectric Behaviour of Small Air Gaps”, IEEE Trans. Dielectr. Electr. Insul, Vol. 16, No 1, pp. 32-41, 2009.

Maglaras A., Topalis F. V., “The Influence of the Grounding of the Electrodes and the Corona Current to the Dielectric Behavior of the Air Gaps” Int. Conf. Med Power 08, Thessalonica, 2008.

Leandros A. Maglaras, Athanasios L. Maglaras, Frangiskos V. Topalis “The influence of the Effect of Grounding and Corona Current to the Field Strength the Corona Onset and the Breakdown Voltage of Small Air Gaps”, WSEAS Transactions on Power Systems, Issue 1, Volume 3, January 2008, ISSN: 1790-5060.

Maglaras L. and Giannakopoulou K., The effect of grounding and Corona Current to the dielectric behavior of small air gaps”, International Meeting of the Scientific Committee of CIGRE, “Athens-2009”, December 2009, Athens, Greece.

Maglaras A., Maglaras L., “The influence of the Corona Current to the Ground and the Polarity Effect of small air gaps, proceedings of the 6th WSEAS Proc. of international conference on Applications of Electrical Engineering (AEE’ 07), pp. 89-95, Istanbul, Turkey, May 27-29, 2007.

Maglaras A., Maglaras L. and Dafopoulos V., “The ground effect, the polarity effect, and the mirror effect in small rod-plate and rod-rod air gaps stressed by dc voltage”, Proceedings of ISH 15th Intern. Sympos. High Voltage Engineering, Ljubljana, Slovenia, T4-334, p. 181, 2007.

Maglaras A., Maglaras L., “The phenomenon of Ground Effect in contradiction to the Polarity Effect in rod –plate air gaps”, Proceedings of WSEAS, IASME International Conference on Electrical Power Systems, Chalkida, Evia island, Greece, 8-10 May, 2006.

Maglaras A., Maglaras L. and Drigojias J., “Modeling and analysis along with experimental investigation of the ground effect in rod-plate air gaps with or without barrier”, 5th WSEAS/IASME Intern. Conf. Electric Power Systems, High Voltages, Electric Machines, (POWER’05), Tenerife, Spain, pp. 474-481, 2005.

Maglaras A., “Numerical analysis of electric field in air gaps, related to the Barrier Effect”, Proceedings of 1st Intern. Conf. From Scientific Computing to Computational Engineering (1st IC-SCCE), Vol. II, pp. 857-865, Athens, 2004.

Maglaras A., Maglaras L., “Modeling and analysis of electric field distribution in air gaps, stressed by breakdown voltage”, Proceedings of int. conference of WSEAS, MMACTEE, Athens, December 2004.