Published by Paweł WĘGIEREK, Michał LECH, Lublin University of Technology, Faculty of Electrical Engineering and Computer Science Abstract. The article presents the detailed construction and capabilities of a research station for the diagnosis and testing of vacuum interrupters used in medium voltage electrical switching devices. The correct functioning of the stand has been confirmed byContinue reading “Test Stand for Testing and Diagnostics of Medium Voltage Vacuum Interrupters”
Tag Archives: Voltage
Estimation of Capacitors Stray Inductance by the Analysis of Overdamped Discharge Current Curves
Published by Ivan KOSTIUKOV, National Technical University “Kharkiv Polytechnic Institute”, Department of Electrical Insulation and Cable Engineering, Ukraine Abstract. This paper gives a description of measurement method which can be used in practice of carrying out measurement of stray inductance of tested capacitive object with the unknown value of electrical capacitance. Stray inductance is determinedContinue reading “Estimation of Capacitors Stray Inductance by the Analysis of Overdamped Discharge Current Curves”
Analysis of Transient Electromagnetic Processes in the Ultrahigh Voltage Transmission Line during Two-Phase Short Circuits
Published by 1. Tomasz PERZYŃSKI1, 2. Vitaliy LEVONIUK2, 3. Radosław FIGURA1, Faculty of Transport, Electrical Engineering and Computer Science, University of Technology and Humanities in Radom (1) Department of Electrical Systems, Lviv National Agrarian University (2)ORCID: 1. 0000-0001-5105-5034; 2. 0000-0003-2113-107X; 3. 0000-0001-8048-5623 Abstract. The mathematical model of a fragment of ultrahigh voltage electric network isContinue reading “Analysis of Transient Electromagnetic Processes in the Ultrahigh Voltage Transmission Line during Two-Phase Short Circuits”
Bridges to Nowhere: Poor Power Quality Prevents Growth
Published by Civian Kiki Massa and Jay Taneja STIMA Lab, University of Massachusetts, Amherst, USA July 2023 Summary: Access to electricity continues to expand worldwide, but even where people are connected to the power grid, they often face challenges including frequent power outages and, less visibly, intermittent periods where electricity is available but only withContinue reading “Bridges to Nowhere: Poor Power Quality Prevents Growth”
An Analysis of Remote Voltage Measurement in the Medium Voltage Cable Networks
Published by 1. Jacek KOZYRA1, 2. Zbigniew ŁUKASIK1, 3. Aldona KUŚMIŃSKA-FIJAŁKOWSKA1, 4. Paweł KASZUBA2, Kazimierz Pulaski University of Technology and Humanities in Radom, (1), Volta Instalacje (2) ORCID: 1. 0000-0002-6660-6713, 2. 0000-0002-7403-8760, 3. 0000-0002-9466-1031, 4. 0000-0003-1120-5901 Abstract. Due to changes occurring both in industrial area and in private consumers, availability of modern electric and electronicContinue reading “An Analysis of Remote Voltage Measurement in the Medium Voltage Cable Networks”
Comparative Analysis of the Costs of Medium Voltage Overhead and Cable Lines Failure
Published by Katarzyna GĘBCZYK, Andrzej Ł. CHOJNACKI, Łukasz GRĄKOWSKI, Kornelia BANASIK Kielce, University of Technology, Department of Power Engineering Basics Abstract. The article presents the results of the analysis of the costs of losses at distributors and consumers of electricity, caused by failures of medium voltage overhead and cable power lines operated by domestic distributionContinue reading “Comparative Analysis of the Costs of Medium Voltage Overhead and Cable Lines Failure”
Differential Relay Protection for Prototype Transformer
Published by Bashar M. SALIH, Mohammed A. IBRAHIM, Ali N. HAMOODI, Northern Technical University Abstract. This paper represents the differential protection relay that used to protect the prototype-Terco power transformer. Matlab/Simulink is used to simulate the protection system. The power differential protection algorithm has been simulated and tested on a 2KVA power transformer under differentContinue reading “Differential Relay Protection for Prototype Transformer”
Laboratory Research of Non-Overvoltage Transistors Control Method in AC Voltage PWM Controller
Published by Andrzej KANDYBA1, Marian HYLA2, Igor KURYTNIK3, The Polish Engineers and Technicians Association SIMP Group Silesia (1), Silesian University of Technology, Faculty of Electrical Engineering (2), State School of Higher Education in Oświęcim (3) Abstract. Method of controlling transistors in AC voltage PWM controller aimed at eliminating commutation overvoltages is presented in the paper.Continue reading “Laboratory Research of Non-Overvoltage Transistors Control Method in AC Voltage PWM Controller”
The Mathematical Model of High Voltage Switch as An Element of a Power System
Published by 1. Andriy CZABAN1, 2. Vitaliy LEVONIUK2, 3. Radosław FIGURA1,Kazimierz Pulaski University of Technology and Humanities in Radom (1), Lviv National Agrarian University (2) ORCID: 1. – 0000-0002-4620-301X; 2. 0000-0003-2113-107X; ; 3. 0000-0001-8048-5623 Abstract. In this work, on the basis of an interdisciplinary method of modelling, a mathematical model of a power system isContinue reading “The Mathematical Model of High Voltage Switch as An Element of a Power System”
Application of Multi-Stage Window Comparator Circuit with Safety Mode for Swell Voltage Control in Low Voltage Systems
Published by Saktanong WONGCHAROEN, Sansak DEEON, Pathumwan Institute of Technology, Thailand Abstract. This article presents the application of a multi-stage window comparator circuit with safety mode for swell voltage control in low voltage systems that lack stability and electrical quality. High-voltage transistors were used to build a simple voltage detecting circuit with multi-stage functions andContinue reading “Application of Multi-Stage Window Comparator Circuit with Safety Mode for Swell Voltage Control in Low Voltage Systems”
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