ELECTRICAL ENGINEERING

 

SOLAR RADIATION ATLAS IN ТREBINJE IN THE REPUBLIC OF SRPSKA
Dragoljub Lj. Mirjanić 1, Tomislav M. Pavlović2, Ivana S. Radonjić2, Lana S. Pantić2, Anđelina V. Marić2, Galina I. Sazhko3
1 Academy of Sciences and Arts of the Republic of Srpska, Bana Lazarevića 1, 78000 Banja Luka, Republic of Srpska
2 University of Niš, Faculty of Sciences and Mathematics, Department of Physics, Višegradska 33, 18000 Niš, Serbia
3 Ukrainian engineering pedagogics academy, Kharkov, Ukraine

DETERMINATION OF RESERVE BY SENSITIVITY AND BOUNDARY CONDITIONS WHEN USING UNSELECTIVE INSTANTANEOUS OVERCURRENT RELAY PROTECTION IN MEDIUM VOLTAGE ELECTRICAL GRIDS
Mediha Mehmed-Hamza1, Plamen Stanchev2
1 Medical University of Varna, Department of Medical Equipment, Electronic and Information Technologies in Health care, 9002 Varna, Bulgaria
2 Technical University of Varna, Department of Electric Power Engineering, 9010 Varna, Bulgaria

FAULT INVESTIGATION AND OPERATION OF RELAY PROTECTIONS AND AUTORECLOSE WITH THE USE OF SIMULATION MODELS IN MEDIUM VOLTAGE ELECTRICAL GRIDS
Mediha Mehmed-Hamza1, Plamen Stanchev2
1 Medical University of Varna, Department of Medical Equipment, Electronic and Information Technologies in Health care, 9002 Varna, Bulgaria
2 Technical University of Varna, Department of Electric Power Engineering, 9010 Varna, Bulgaria

REAL TIME SPEED CONTROL OF ELECTRIC MOTOR VIA MATLAB
Osman ULKIR1
1 Department of Electronics and Automation, Mus Alparslan University, Mus, 49100, Turkey

SOFTWARE SIMULATION OF THE PRESENCE OF MECHANICAL UNBALANCE IN ELECTRICAL EQUIPMENT WITH ASYNCHRONOUS MOTORS
Yuliyan Yordanov
Technical University of Varna, Department of Electric Power Supply and Equipment

MODE CONTROL OF LIGHTING SYSTEM BASED ON THE SMART-LIGHT CONCEPT
Hovorov Pylyp, Kindinova Anastasiia, Hovorova Kateryna, Dyumin Eduard, Abdelrahim Omer
O.M. Beketov National University of Urban Economy in Kharkiv

EFFECT OF CALCINATION TIME ON THE DIELECTRIC PROPERTIES OF DOPED WITH TIN DIOXIDE BARIUM TITANATE
Ivaylo Lazarov0
Technical University of Gabrovo

DEVELOPMENT OF TECHNICAL SOLUTION FOR EXPERIMENTAL RESEARCH AND VERIFICATION OF METHODS FOR ANALYZING OF DYNAMIC MODES IN URBAN ELECTRIC TRANSPORT
Nikolay Bezhanov
Technical University of Varna, Department of Electric Power Supply and Equipment

DESIGN AND DEVELOPMENT OF A LABORATORY MODEL OF A PURE SINE WAVE INVERTER FOR POWER SUPPLY OF LOW POWER CONSUMERS
Hristo Ibrishimov
Technical University of Gabrovo

INVESTIGATION OF SOME PARAMETERS OF ELECTROMAGNETIC COMPATIBILITY FROM DIMMABLE LED BULBS
Tsvyatko Kolev Varbov, Krasimir Marinov Ivanov
Technical University of Gabrovo

RESEARCH OF THE INFLUENCE OF THE INTER-ROW SPACING FOR GROUND MOUNTED PV SYSTEMS ON THE ANNUAL PRODUCTION OF ELECTRIC ENERGY USING PVGIS-SARAH
Tsvyatko Kolev Varbov
Technical University of Gabrovo

INFLUENCE OF INDIVIDUAL STANDARD UNCERTAINTIES ON TOTAL UNCERTAINTY OF ENERGY EFFICIENCY OF A THREE-PHASE INDUCTION MOTOR
Branko Koprivica1, Alenka Milovanović1, Srđan Divac*, Marko Šućurović2
University of Kragujevac, Faculty of Technical Sciences Čačak Svetog Save 65, 32000 Čačak, Serbia
1 Department of Electrical and Electronic Engineering, 2Department of Power Engineering,
* PhD Scholarship of the Ministry of Education, Science and Technological Development of Serbia

DYNAMIC TEMPERATURE MODELING OF INDUSTRIAL LED LUMINAIRE
Hristo Ibrishimov
Technical University of Gabrovo

MODELING OF PLANAR TRANSFORMER FOR DC DC CONVERTER
Hristo Ibrishimov
Technical University of Gabrovo

TEMPERATURE MEASUREMENT AND CURRENT DETERMINATION OF HORIZONTALLY AND VERTICALLY PLACED LOW-VOLTAGE SINGLE CORE CABLE
Marko Sucurovic1, Milan Marjanovic2, Marko Rosic1, Miroslav Bjekic1, Branko Koprivica3
University of Kragujevac, Faculty of Technical Sciences in Cacak
1 Department of Power Engineering,
2 Department of Mechanical Engineering,
3 Department of Electrical and Electronic Engineering, Svetog Save 65, 32000 Cacak, Serbia

STUDY OF THE ELECTRICAL QUALITY PARAMETERS OF SMART LED LUMINAIRES
Plamen Tsankov, Milko Yovchev, Teodor Todorov
Technical University of Gabrovo

REMOTE CONTROL AND MANAGEMENT SYSTEM FOR AIR-CONDITIONING INSTALLATION
Emiliya Dimitrova, Vasil Dimitrov
Todor Kableshkov University of Transport – Sofia

COMMISSIONING OF A GONIOPHOTOMETER AND AN INTEGRATING SPHERE WITH SPECTRORADIOMETER IN A NEW LIGHTING LABORATORY AT THE TECHNICAL UNIVERSITY ОF GABROVO
Plamen Tsankov
Technical University of Gabrovo

CREATING A MODEL OF PHASE-CONTROLLED BRIDGE RECTIFIERS IN SIMULINK FOR STUDENT TRAINING
Hristo Ibrishimov
Technical University of Gabrovo

ANALYSIS OF THE PARTICIPATION OF ELECTRIC TRANSPORT IN THE TOTAL ENERGY MIX IN ACCORDANCE WITH THE PLANNED INDICATORS IN THE STRATEGY FOR SUSTAINABLE ENERGY DEVELOPMENT OF VARNA FOR THE PERIOD 2014-2020
Valentin Gyurov
Technical University of Varna, Department of Electric Power Supply and Equipment

INVESTIGATION OF THE POWER REDUCTION OF HORIZONTALLY MOUNTED SOLAR MODULE DUE TO SOILING
Tomislav M. Pavlović 1, Ivana S. Radonjić1, Dragoljub Lj. Mirjanić2, Darko Divnić2
1 University of Niš, Faculty of Sciences and Mathematics, Department of Physics,
Višegradska 33, 18000 Niš, Serbia
2 Academy of Sciences and Arts of the Republic of Srpska, Bana Lazarevića 1, 78000 Banja Luka, Republic of Srpska

 

 


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