Published by Wiktoria GRYCAN, Wroclaw University of Science and TechnologyORCID: 0000-0001-8121-7612 Abstract. Battery electric vehicles are becoming an opportunity for sustainable development in mining. There are several advantages of electric vehicles in mining, primarily related to improving the safety of miners’ working conditions. It is significant for mining workers that electric vehicles are not aContinue reading “Electric Vehicles in Mining for the Aspect of Operational Safety”
Tag Archives: Safety/Protection
The Coreless Superconducting Fault Current Limiter 15 kV 140 A
Published by Michał MAJKA, Janusz KOZAK, Electrotechnical Institute Abstract. The superconducting fault current limiter (SFCL) is a device allowing for a more effective use of the existing power network infrastructure. The limitation of short-circuit currents by the SFCL to safe levels will result in the network elements being susceptible to smaller electrodynamic and thermal overloads.Continue reading “The Coreless Superconducting Fault Current Limiter 15 kV 140 A”
New Approach to Protecting Transformers Against High Frequency Transients – Wind Turbine Case Study
Published by Dariusz SMUGAŁA(1), Wojciech PIASECKI(1), Magdalena OSTROGÓRSKA(1), Marek FLORKOWSKI(1), Marek FULCZYK(2), Ole GRANHAUG(3), ABB Sp.z.o.o., Corporate Research Center, Cracow, Poland (1), ABB Oy, Medium Voltage Products, Vaasa, Finland (2), ABB AS, Medium Voltage Products, Skien, Norway (3) Abstract. Novel protection method of wind turbine transformers against high frequency transients occurring during switchgear operation isContinue reading “New Approach to Protecting Transformers Against High Frequency Transients – Wind Turbine Case Study”
Analysis of Lightning Current Distribution in the Lightning Protection System (LPS) with using Numerical Simulations
Published by Konrad SOBOLEWSKI, Warsaw University of Technology Abstract. The paper describes the numerical model of a typical lightning protection system (LPS). This model was used to get information’s about lightning current distributions as an effect of direct lightning strike to this protection system. To perform this task was chosen software MATLAB/SIMULINK. With this toolContinue reading “Analysis of Lightning Current Distribution in the Lightning Protection System (LPS) with using Numerical Simulations”
The System for Testing the Resistance to the Surface Discharge and Erosion of the Polymeric Insulators
Published by Tomasz SAMBORSKI, Andrzej ZBROWSKI, Stanisław KOZIOŁ, Instytut Technologii Eksploatacji – Państwowy Instytut Badawczy Abstract. The introduced device allows performance of the research in the rotary testing of the resistance to the surface discharge and erosion of the polymeric insulators according to PN-EN 62217:2007. The applied control system of the operation of the deviceContinue reading “The System for Testing the Resistance to the Surface Discharge and Erosion of the Polymeric Insulators”
Consumers Protection and Monitoring with Microcontroller Based Device for Low-Voltage Distribution Systems
Published by Petre Lucian OGRUTAN1, Lia Elena ACIU1, Dan LOZNEANU1, Ioan ROSCA2,Transilvania University of Brasov, Romania (1), Transilvania Sud Electricity Distribution (2) Abstract. Protection devices against over-voltage and over-currents for low voltage systems are equipped with varistors and gas-discharge tubes around a fuse, having a disconnection time about 200ms. This paper proposes an intelligent protectionContinue reading “Consumers Protection and Monitoring with Microcontroller Based Device for Low-Voltage Distribution Systems”
Protection of Busbar Based on Reed Switches
Published by Mark KLETSEL1, Nariman KABDUALIYEV2, Bauyrzhan MASHRAPOV2, Alexander NEFTISSOV2,National Research Tomsk Polytechnic University (1), Pavlodar State University (2) doi:10.12915/pe.2014.01.21 Abstract. A phase comparison scheme of protection of busbar on the reed switches fixed connections near conductors extending from these busbars which does not require current transformers has been studied. The article provides an analysisContinue reading “Protection of Busbar Based on Reed Switches”
Overhead Line Fault Section Positioning System Based on Wireless Sensor Network
Published by Ai-hua Dong, Xinlin Geng, Yi Yang, Ying Su, Mengyao Li, Henan Polytechnic University Abstract. This paper introduces overhead line fault detection and location system as the core of industrial control computer. The combination of software and hardware, the methods of current rate of change and zero current detection are used, and so theContinue reading “Overhead Line Fault Section Positioning System Based on Wireless Sensor Network”
Electric Shock Hazard Limitation in Water During Lightning Strike
Published by Jarosław WIATER, Białystok University of Technology Abstract: Swimming during a thunderstorm is one of the most dangerous things that can be done. Lightning regularly strikes water, and since water conducts electricity, a nearby lightning strike could kill or injure human being. This paper will present simulation results of scalar potential distribution in waterContinue reading “Electric Shock Hazard Limitation in Water During Lightning Strike”
Hazardous Step Voltage Nearby Pole Exited by High Voltage Surge
Published by Jarosław WIATER, Politechnika Białostocka, Wydział Elektryczny, Katedra Telekomunikacji i Aparatury Elektronicznej Abstract. This paper presents a ground potential rise (GPR) and voltage difference measurement results. Measurements were made for a model of a pole installed in homogeneous ground. The test stand was built in high voltage lab. It allows safe high voltage testingContinue reading “Hazardous Step Voltage Nearby Pole Exited by High Voltage Surge”
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