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”

Improvement of Voltage Stability in the HV Distribution Line using an Active Power Filter

Published by Julian WOSIK1, Marcin HABRYCH2, Bogdan MIEDZIŃSKI2, Grzegorz DEBITA3, Andrzej FIRLIT4, Institute of Innovative Technologies EMAG (1), Wroclaw University of Science and Technology (2), General Tadeusz Kosciuszko Military University of Land Forces (3), AGH University of Science and Technology (4) Abstract. The article explains the reason of a voltage instability in distribution networks basingContinue reading “Improvement of Voltage Stability in the HV Distribution Line using an Active Power Filter”

Voltage withstand Tests and PD Measurements on Cable Accessories with Assembly Mistakes

Published by Maciej OWSIŃSKI1, Paweł KLUGE1, Andrzej ŁASICA2, Przemysław SUL2, Tomasz SALAK2, Bartosz ZAJĄC2, Institute of Power Engineering (1), Warsaw University of Technology (2) Abstract. The paper presents the results of voltage withstand tests and partial discharges measurements made on MV cable accessories made with assembly errors. The tested equipment was subjected to tests developedContinue reading “Voltage withstand Tests and PD Measurements on Cable Accessories with Assembly Mistakes”

Substation Grounding Basics: Step, Touch, and Transferred Voltages

Published by Lorenzo Mari, EE Power – Technical Articles: Substation Grounding Basics: Step, Touch, and Transferred Voltages, October 09, 2020. Learn about Earth potential gradients and shock situations in substations. The conduction of high currents to ground in substations due to atmospheric disturbances or equipment failures generates potential gradients on Earth’s surface that are a threatContinue reading “Substation Grounding Basics: Step, Touch, and Transferred Voltages”

Voltage Measurements Using Noise Distribution

Published by Grzegorz WĘGRZYN1, Robert SZCZYGIEŁ,AGH2, University of Science and Technology. ORCID: 1. 0000-0002-4132-4939; 2. 0000-0001-6342–0107 Abstract. This paper presents a concept of noised signal voltage measurement using noise distribution. The goal of this project was to work out a new solution for low noise, hybrid pixel detectors that work in single photon counting mode.Continue reading “Voltage Measurements Using Noise Distribution”