Bernardin, Portorož, 7–8 June 2016

On 7 and 8 June 2016 the first regional SEERC Power Conference merging the economic, academic and industrial sections of electric power sector in Central and SE Europe was held in Portorož. It was organised by the Slovenian Electric Power Experts Association and the national CIGRE committee. The experts from the EIMV also actively participated at the conference, its organisation and lectures. The first conference day was intended for educational discussions and selected topics by countries with regard to the system challenges until 2030. The emphasis at discussions was also put on energy and environmental strategy in the region and new scientific findings with a focus on energy policies, energy strategical programmes for green strategies, new scientific methodology and new projects in the region.

On the second day the attendants heard more than 100 selected papers presenting novelties in this sector. At the conclusion of the conference, decisions and instructions for further activities in the region were adopted and the coordination of the next SEERC conference that will be held in May 2018 in Ukraine was handed over to the next organiser. More about the conference:

More about the conference:

Kotnik Days 2016

The 37th Kotnik Days were held in Radenci on 24 and 25 March 2016. The event was dedicated to power electric technology and modern installation training intended for electric energy experts in the field of maintenance, design and investment activity. This year, novelties in alternative electric energy sources and their inclusion in electric energy systems, new SIST standards in electrical installations, efficient use of intelligent electrical installations, experience of investors, the use and impacts of LED illumination on electrical installations, work under voltage on low voltage installations as well as maintenance, ecology in electric energy sector and environmental impacts were presented.

Our colleague, Dejan Matvoz, MSc, also cooperated at the event by presenting his paper “Modifications and supplementations of the instruction for connecting and operating power plants with installed electric power to 10 MW”.

Ljubljana, March 2016
Rehabilitated impulse voltage generator

The High Voltage Laboratory successfully implemented the rehabilitation and testing of the impulse voltage generator. It conducted construction changes and installed new filling condensers. The generator is now able to create voltage impulses:

  • atmospheric impulse voltage 1,2/50 µs: 1.8 MV
  • switching impulse voltage 250/2500 µs: 1.2 MV

In this way we can test devices fro 400 kV level with alternate and impulse voltage, which has not been possible so far.

February 2016

EIMV participates in two EU projects under the Horizon 2020 framework programme

At the end of January kick-off meetings of two projects under Horizon 2020 were held, in which as a member of a consortium also participates EIMV. The projects were started at January 1st 2016 and are due to take 48 months.

In the scope of the project »FutureFlow - Designing eTrading Solutions for Electricity Balancing and Redispatching in Europe« an e-trading platform for cross-border utilization of ancillary services (such as aFRR, mFRR, RR) will be designed, implemented and pilot tested. Utilization of demand response for the aFRR ancillary service will also be explored and tested. More information: FUTUREFLOW-PR.pdf

The project MIGRATE »Massive InteGRATion of power Electronic devices« copes with the problems of the future power system where a vast of generation will be connected to the system using power electronics. This fact raises a lot of issues regarding problems with the lack of system inertia that is needed to guarantee the necessary frequency stability at 50 Hz, the lack of short-circuit capacity, power quality problems, etc. More information: MIGRATE-PR.pdf

January 2016
12th Höfler's Days – more than 150 participants, 21 expert presentations and an interesting panel discussion

On 12 and 13 November 2015, we organised the 12th Höfler's Days International Symposium. 21 expert papers that based on technological issues and future challenges in the field of electric energy industry presented and focused on the problems of operations of the electric energy system with a high share of renewable sources, reactive power compensation and measures to sustain voltage situation in the HV grid, HVDC transmission of electric energy and technological specialities, information technologies in the electric energy systems as well as the techniques for reducing the impact of the HV grid and devices on the environment. Panel discussion focused on optimising the voltage profile in the system, where emphasis was put on reactive power management.

We are glad that more than 150 domestic and foreign experts and lecturers participated at this event. Together, we had actively contributed to making the event interesting and that it received quite a lot of attention. We thank each and one of you once again and hope to welcome you to the 13th Höfler's Days next year! November 2015


On November 12 and 13, 2015, the Milan Vidmar Electric Power Research Institute organises the 12th “Höfler Days” Symposium which traditionally focuses on high voltage technology issues mostly HV testing and measurement technique. We have decided to expand the topics and include technological issues concerning some future challenges of the electric power system operation. Symposium will be implemented under the title ENHANCING THE ELECTRIC POWER SYSTEM RELIABILITY BY MEANS OF ITS STRUCTURAL MODIFICATIONS.

We invite experts to participate and share with us their professional experiences by presenting and discussing scientific papers. We invite exhibitors and sponsors to join the symposium and to actively participate and enrich this traditional event.

More about Höfler Days Hofler

November 2015

TC37 IEC technical committee meetings

At the High Voltage Faculty of the Darmstadt University of Technology, experts (19) in surge arresters met at two TC37 IEC technical meetings (overvoltage arresters) MT3 and MT10.

  • At the MT10 meeting which was held on 22 and 23 October 2015, the experts dealt with the IEC 60099-5 standard renewal. The standard discusses the selection and recommendations for the use of overvoltage arresters.
  • At the MT4 meeting that was held on 23 and 24 October 2015, experts dealt with the IEC 60099-4, -6, -8 standard renewal. The standards discuss several types of overvoltage arresters.

The representative of the Milan Vidmar Electric Power Research Institute, Mr Miha Bečan, participated at both meetings as an invited guest. The faculty also organised the visit of the high voltage laboratory and other specialised test laboratories.

October 2015

INMR World Congress 2015

Celebrating the 20th anniversary, the 12th INMR World Congress took place in Munich from 19 to 21 October.

More than 125 papers were presented. The main topics were:

  • Technical improvements of isolators for overhead lines and isolators for switching stations
  • Future needs in planning overhead lines for optimising the appearance and costs
  • Technical improvements of design and the application of cable clamps and terminals for MV and HV cables
  • Trends and new technologies for energetic non-linear resistance
  • Operating experience in the use of surge arresters and their monitoring
  • Changes of requirements of insulation materials with the transition with AC to HV and very high voltage of the DC application
  • Experience and acquired knowledge in the insulator design for deserts and other extreme environmental conditions
  • Experience acquired at HV bushing condition monitoring technologies
  • Insulator design for optimising HV DC and very high voltage application
  • Improved methodologies for the review and maintenance of insulation of overhead lines and switching stations

62 producers of electrical equipment presented their products (insulators, bushings, arresters), as well as machinery and materials for their production as well as high voltage laboratories for their testing.

The congress offers a unique opportunity to merge experts, producers and users of insulators, arresters and cable terminations. It was also attended by the representatives of Slovenian companies Izoelektro d.o.o. and Solvera Lynx d.d. 

October 2015

Celebrating the birth anniversaries of academicians Milan and Josip Vidmar

On 22 September 2015, the Slovenian Academy of Sciences and Arts organised a celebration in the memory of academic brothers Josip and Milan Vidmar. This year is the 130th anniversary of birth of our founder, Prof. Dr. Milan Vidmar, and the 120th anniversary of birth of Josip Vidmar. Both presided the SAZU.

At this event, Prof. Dr. Maks Babuder presented our founder as the great engineer in electrical technology. He spoke about how he learned who Milan Vidmar was and why as well as how he had evolved to becoming a great electrical engineer, he also presented Vidmar’s scientific and other papers thus setting him to the top of the electrical industry. He also proudly presented how Milan Vidmar founded our institute in 1948. Academician Prof. Dr. Ivan Bratko presented academician Milan Vidmar as a great expert and chess player. In his speech, he took the listeners to the world of chess through the eyes of a master of chess.

Josip Vidmar, was presented by Prof. Dr. Janko Kos and Prof. Dr. France Bernik, the honourable member of the SABU, who described his encounters with Josip Vidmar.

September 2015


Once again, this year four distinguished institutions in electricity transmission, i.e. the Milan Vidmar Electric Power Research Institute, ELES, the Faculty of Electrical Engineering and GEN energija will provide for increasing the energy literacy of secondary school students. At Elektrofest, each organisation will prepare different professional sets of content where students will be informed on electromagnetic radiation which is the core topic of this year’s event.

The Milan Vidmar Electric Power Research Institute will demonstrate the measurements of electrical and magnetic fields of network frequency at various voltages and currents. ELES company will show the animated film on the operations of EES, experts will prepare a lecture in electromagnetic radiation and overhead power lines. Students will perform various experiments and “walk” along the electromagnetic spectrum with the expert from Gen energija. The Faculty of Electrical Engineering of the University of Ljubljana is preparing students for a radio show entitled “Fox Hunt”. After the scientific work, students will be entertained in front of our building. We expect that almost 500 students and mentors will attend the event.

September 2015

19th International Symposium on High Voltage Engineering

The 19the International Symposium on High Voltage Engineering was held in Pilsen, Czech Republic, from 26 to 31 August 2015. It was attended by approximately 580 researchers from 39 countries who work within the scope of institutes, universities and the industry. The symposium is one of the most important meetings in the field of high voltage engineering in the world and we are proud that Slovenia has been represented since the beginning by the Milan Vidmar Electric Power Research Institute with their scientific papers, four this year. We are also very proud that Prof. Dr. Maks Babuder has been the member of the international management board of the ISH since the beginning.

In the scope of Oral Session OA2: EMF Application, Simon Podkoritnik presented his paper entitled Analysis of the Impact of Reduction 400 kV Overhead Transmission Line Dimensions on the Transient Overvoltages (co-authors Dr. Stane Vižintin and Boštjan Barl). In the group Poster Session PE1: OHL / CB Diagnosis, Igor Rozman presented his paper entitled Evaluation of the Measures to Limit the Corona Noise Implemented on the 400 kV OTL Bericevo – Krsko (co-authors Miha Bečan, Dr. Boris Žitnik, Ivo Kobal and Borut Vertačnik). In the group Poster Session PC: HV Test & Measuring Technique, Vladimir Djurica presented his paper entitled A Reference Testing Site for Evaluation of Dynamic Thermal Rating Algorithm Uncertainties in the Operation of Transmission Power Lines (co-authors Gašper Lakota, Miloš Maksič, Janko Kosmač and Jan Kostevc). Within the scope of the same group, Tim Gradnik presented his paper Impact of optical fibre temperature sensors on dielectric withstand of oil channel in paperless winding insulation of power transformers (co-authors Juso Ikanovič, Blaž Janežič and Andrej Jurman).

The symposium highlighted the challends that researches face in the field of high voltage, and enabled the exchange of knowledge and experience. Our institute has quite extensive experience and expertise, therefore, we are ranked among the leading world scientific institutions.

At the symposium, Slovenia was represented by the Director of EIMV, Dr. Boris Žitnik, Prof. Dr. Maks Babuder, Marko Hrast, MSc, Dr. Stane Vižintin, Borut Vertačnik, Vladimir Djurica, Igor Rozman, Tim Gradnik and Simon Podkoritnik.

September 2015

23rd International Conference on Nuclear Engineering

The 23rd International Conference on Nuclear Engineering (ICONE23) took place in May in Japan, Tokyo, at the Makuhari Messe, Chiba. The conference is one of the most important meetings in the field of nuclear engineering.

Our associate Simon Podkoritnik also attended the conference, where he presented a paper entitled Diagnostics and Life-Cycle Assessment of Medium-Voltage Cables in Nuclear Power Plants During Regular Overhaul Process, which he prepared with co-authors S. Manojlović and M. Janša.

The paper presents the best approach at the moment, which is represented, introduced and implemented in the field of cable diagnostics by the High Voltage Laboratory of the High Voltage Department of the Milan Vidmar Electric Power Research Institute. The participants at the conference showed quite a lot of interest for this topic.


Within the scope of the 12th CIGRÉ-CIRED Conference of Slovenian electric power sector, on Tuesday, 26 May 2015, awards were granted for long-term successful work in the Slovenian electric power sector. The award was received by our long-term associate, Mr Rado Isaković. Congratulations!  

The diplomas for most distinguished papers at the last conference, held in Laško in 2013, were also granted. We are extremely delighted that the award recipients are the associates of the Electric Power Research Institute, who have alone or in collaboration with their peers prepared papers that received the most attention among all published papers. More in attachment: Awards and diplomas >>


At the opening of the 12th CIGRÉ Conference of the Slovenian electric energy sector held in Portorož on 25 May 2015, our associate, Dr. Stane Vižintin, received the CIGRÉ plaque for exceptional contributions in the Slovenian energy sector and international activities. Congratulations!  

Stane Vižintin was born on 14 January 1959 in Ljubljana. He graduated from the Faculty of Electrical Engineering of the University of Ljubljana, Industrial Electrical Technology Department in 1983. In the following year, he was employed at the High Voltage Department at the Milan Vidmar Electric Power Research Institute. He received his master's degree at the Faculty of Electrical Engineering in Ljubljana in 1999. 

He passed the professional exam in electrical engineering in 1992. From 1991 to 2008, he worked as an assistant and managed laboratory tutorials for the High Voltage Technology subject. From April 2010 he has successfully managed the High Voltage Department at the Milan Vidmar Electric Power Research Institute. He got his doctoral degree in 2011 at the Faculty of Electrical Engineering at the University of Zagreb. 

For several years, he has been a distinguished member of the SLOKO CIGRÉ and the secretary of the SC A3 and international associations IEEE and CIGRÉ. He has also worked as a member/observer at the SC A3. He was also the member of the working group WG A3.17 that dealt with surge arresters. He actively collaborates with the Slovenian Standardisation Institute, i.e. in various technical boards. He was also the member of the ISH International Symposium Organisational Committee, which was held in 2007 in Ljubljana. 

His main activities comprise: the control of HV facilities isolation, over voltage measurements, work at the OV laboratory, introduction of IT in work processes, automation of measurement procedures, computer simulation of surge events, selection of technology and takeovers of t HV devices, functioning of lightings and analysis of lighting protection, isolation coordination, overhead lines technology, standardisation, cooperation at the construction of electric power facilities and technical reviews.


The three-day meeting of Slovenian electric energy providers will be held at the BERNARDIN Congress Centre in Portorož from Monday, 25 May, to Wednesday, 27 May 2015. The Milan Vidmar Electric Power Research Institute will also cooperate actively at this conference. Our co-workers will present interesting articles that will show the knowledge and research work of the institute. You are kindly invited to attend! Please, find out more about the conference on

32nd CIGRE Serbia Conference

At the 32nd CIGRE Serbia conference that was held from 17 to 21 May 2015 in Zlatibor, our co-workers Goran Milev and Vladimir Djurica presented the work of the Milan Vidmar Electric Power Research Institute and the services of the SCALAR system. This year’s topics were the damages in the Serbian electric energy system caused by floods, glaze ice and strong winds in the previous year and the review of work after ten years of liberalisation of the energy market in Serbia. Please, read more about the CIGRE Serbia Conference on


The 4th International MNE KO CIGRE 2015 Conference was organised in Montenegro from 11 to 14 May. Among 106 published papers, the experts from the EIMV, Goran Milev and Vladimir Djurica, presented a successfully implemented project for the CGES a.d. mobile operator in Montenegro, entitled "Implementation of the SCALAR SYSTEM Correlator Service on the Montenegrin Transmission Network".

Please, find more information about the conference on

En.grids 2015

The 6th Smart Grids Conference was held on 10 February at the Plaza Hotel in Ljubljana. It was also attended by two of our associates: Mr Gregor Omahen coordinated the introductory round table entitled "Smart Grids Demand a Smart Approach!" and Mr Souvent who presented his paper "Advanced Visualisation of Electric Power Network". See more at