Some Issues of Increasing the Efficiency of Electric Machines

Published by Samira KHANAHMEDOVA, Azerbaijan State Oil and Industry UniversityORCID: 0000-0001-8862-1570 Abstract. The article discusses ways to reduce losses to increase efficiency in electric machines. The amount of energy loss is determined by the efficiency coefficient. The issues of changing the size of an electric machine under electromagnetic loads with a constant power source andContinue reading “Some Issues of Increasing the Efficiency of Electric Machines”

Damaged X-ray Equipment at Major Health Care Center

Published by Dranetz Technologies, Inc. Website: Dranetz.com  Severe power quality problems damaged X-ray equipment, costing $100,000 in one instance. The source of the problem was the switch over from utility to generator power, during regular testing and emergency situations. Figure 1 (below) identified the cause of the problem, an out-of-phase transfer, captured by On Power with aContinue reading “Damaged X-ray Equipment at Major Health Care Center”

Application Of Optical Current Sensors in Electric Substations

Published by Ilham RAHIMLI1, Aliashraf BAKHTIYAROV2, Gulshan ABDULLAYEVA3, Sona RZAYEVA4. Azerbaijan State Oil and Industry University ORCID: 1. 0009-0006-1976-4475; 3. 0000-0003-0168-9623; 4. 0000-0001-7086-9519 Abstract. Despite the fact that current transformers have been used for many years in certain sections of the electrical network, in power supply, to power the circuits of an electrical measuring installation,Continue reading “Application Of Optical Current Sensors in Electric Substations”

Modern Methods Of Evaluating the Technical Condition of Power Transformers

Published by Tural Aliyev1, Aydin Aliyev2,Azerbaijan State Oil and İndustry University, Baku, Azerbaijan ORCID: 1. 0000-0003-0751-3952, 2. 0000-0002-1631-0543 Abstract. This article aims to shed light on the critical aspects of power transformer assessment and proposes avenues for improvement in current methodologies, emphasizing the need for a more comprehensive and integrated approach to ensure the reliabilityContinue reading “Modern Methods Of Evaluating the Technical Condition of Power Transformers”

Research of Some Problems of Electrical Safety

Published by Elshad Safiyev1, Saida Kerimova2, Kubra Mukhtarova3, Azerbaijan State Oil and Industry University ORCID: 1. 0009-0005-4971-1721 Abstract. The article describes in detail the causes of electric danger, the types of its effects on the human body, and ways to protect against the danger. Schemes of connecting people to single-phase and two-phase current circuits andContinue reading “Research of Some Problems of Electrical Safety”

Prognosis of Insulation Deterioration in Induction Motors Winding Subject to Voltage Fluctuations

Published by 1. Ilham Bouaissi1, 2. Ali Rezig1, 3. Said Touati2, L2EI Laboratory, University Mohammed Seddik Benyahia, Ouled Aissa. Bp 98, Jijel, 18000, Algeria (1). Nuclear research center, Birine, Ain Oussera. Bp 180, Djelfa, 17200 Algeria (2) ORCID: 1. 0000-0001-5981-6918 Abstract. One of the problems with induction motors, say the experts, is voltage. Insulation deteriorationContinue reading “Prognosis of Insulation Deterioration in Induction Motors Winding Subject to Voltage Fluctuations”

Residual Current Devices in Electric Vehicles Charging Installations

Published by Stanislaw CZAPP, Gdańsk University of Technology, ORCID: 0000-0002-1341-8276 Abstract. The main requirements of national regulations and international standards regarding protection against electric shock in electric vehicle charging installations are presented. The principles of using residual current devices (RCDs) in such installations are discussed. It is pointed out that RCDs are mandatory equipment forContinue reading “Residual Current Devices in Electric Vehicles Charging Installations”

Research of Methods Power Control of Wind Turbines

Published by Nijat Mammadov1, Ilkin Marufov2, Saadat Shikhaliyeva, Gulnara Aliyeva, Saida Kerimova,Azerbaijan State Oil and Industry UniversityORCID: 1. 0000-0001-6555-3632; 2. 0000-0002-3143-0113 Abstract. Currently, renewable energy sources play an important role in the global energy balance. Among them, wind electric installations occupy a special place. As wind turbines develop and their power increases, their design alsoContinue reading “Research of Methods Power Control of Wind Turbines”

Problems of Designing Electric Vehicle Charging Stations

Published by Marta BĄTKIEWICZ-PANTUŁA, Wrocław University of Science and TechnologyORCID: 0000-0002-1628-1818; Abstract. The article presents the issues of designing electric vehicle charging stations. The general requirements that a vehicle charging station should meet are presented. The article focuses on the electric part of the vehicle charging station. Attention was also focused on the safety rulesContinue reading “Problems of Designing Electric Vehicle Charging Stations”

Commercial Lightweight Photovoltaic Modules for Applications in On-Grid Systems

Published by 1. Piotr GRYGIEL1,2, 2. Jan TARŁOWSKI2, 3. Krzysztof MIK3, Gdańsk University of Technology (1), Xdisc S.A.,Warsaw, Poland (2), Energy Conversion and Renewable Resources Research Centre, Polish Academy of Sciences, (3) ORCID: 1. 0000-0003-2769-9088; 3. 0000-0002-9510-3066 Abstract. Two types of full-size photovoltaic modules for on-grid systems with maximum DC voltage of 600 V haveContinue reading “Commercial Lightweight Photovoltaic Modules for Applications in On-Grid Systems”