Published by Ali HAMOODI, Rasha MOHAMMED, Bashar SALIH, Northern Technical University, Engineering technical college Abstract. The objective of this work was to protect the transmission line (T.L.) from the lightning effect. In the last decades, several methodologies have been employed for the rise of lightning performance on the T.L Lightning with high values of currentContinue reading “Extra High Voltage Transmission Line Lightening Protection using Surge Arrester”
Tag Archives: Power Distribution
An Overview of Harmonics in Electrical Systems
Published by Wesco | Anixter, Wesco International. What are harmonics? In an electric power system, a harmonic is a voltage or current at a multiple of the fundamental frequency of the system. Harmonics can best be described as the shape or characteristics of a voltage or current waveform relative to its fundamental frequency. When waveforms deviate from a sinewaveContinue reading “An Overview of Harmonics in Electrical Systems”
Power Quality Improvement in Distributed Generation System under varying Load Conditions using PWM and Hysteresis Controller
Published Vijayshree G1, Sumathi S2, RNSIT, Bangalore,Karnataka,India(1). RNSIT, Bangalore,Karnataka, India(2) Abstract – This paper proposes a power system network modeled using a microgrid, integrated with wind and solar photovoltaic (PV) resources, along with the battery energy storage system (BESS) connected to the three-phase grid feeding the linear and nonlinear load. The simulation is carried outContinue reading “Power Quality Improvement in Distributed Generation System under varying Load Conditions using PWM and Hysteresis Controller”
Upstream Frequency Disturbance
Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se We have received questions about disturbances in the grid. Do we have any examples? Here is an interesting example showing how disturbances spread through the network. A major frequency disturbance occured in Scandinavia on December 1, 2005. In this comparison we have compared measuring dataContinue reading “Upstream Frequency Disturbance”
Impact of Ambient Temperature on the Failure Intensity of Overhead MV Power Lines
Published by Andrzej Ł. Chojnacki, Kielce University of Technology, Department of Power EngineeringORCID: 0000-0002-9227-7538 Abstract. The article presents the influence of weather conditions, represented by the ambient temperature, for the intensity of the failure of MV overhead power lines. It presents the mechanisms of damaging the equipment by the high and low temperatures. It showsContinue reading “Impact of Ambient Temperature on the Failure Intensity of Overhead MV Power Lines”
Comparison of Thresholding Algorithms for Automatic Overhead Line Detection Procedure
Published by Paweł KOWALSKI, Robert SMYK, Gda ´nsk University of Technology Abstract. The article presents an overview of the thresholding algorithms. It compares the algorithms proposed by Pun, Kittler, Niblack, Huang, Rosenfeld, Remesh, Lloyd, Riddler, Otsu, Yanni, Kapur and Jawahar. Additionally, it was tested how the tuning of the Pun, Jawahar and Niblack methods affectsContinue reading “Comparison of Thresholding Algorithms for Automatic Overhead Line Detection Procedure”
Small Hydropower Plant with Variable Speed PM Generator
Published by Witold MAZGAJ, Zbigniew SZULAR, Tomasz WĘGIEL, Tadeusz SOBCZYK, Politechnika Krakowska, Instytut Elektromechanicznych Przemian Energii Abstract. This paper presents a new concept of a Small Hydropower Plant (SHP) which is based on a permanent magnet generator (PM generator) with a propeller turbine integrated with the generator rotor. The PM generator can work at aContinue reading “Small Hydropower Plant with Variable Speed PM Generator”
The Latest Superconducting Short Current Limiters – Review of Selected Solutions
Published by 1. Joanna KOZIEŁ1, 2. Damian GNAT1, 3.Michał MAJKA1, 4.Yerbol Turgynebekov2,Lublin University of Technology, Department of Electrical Engineering and Electrotechnologies, Faculty of Electrical Engineering and Computer Science(1) Taraz State University after M.Kh.Dulaty, Kazakhstan(2)ORCID: 1.0000-0003-1682-2589, 3.0000-0002-7153-040X Abstract. In the article after the introduction, containing the idea and principle of operation of the SFCL, selected prototypesContinue reading “The Latest Superconducting Short Current Limiters – Review of Selected Solutions”
Test Stand for Testing and Diagnostics of Medium Voltage Vacuum Interrupters
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”
A Statistical Analysis of Wind Speed Probabilistic Distributions for the Wind Power Assessment in Different Regions
Published by 1. Yuly Bay, 2. Nikolay Ruban, 3. Mikhail Andreev, 4. Alexandr Gusev, Tomsk Polytechnic University. ORCID. 1. 0000-0001-9928-408X, 2. 0000-0003-1396-9104, 3. 0000-0002-6420-4374, 4. 0000-0003-0814-2356 Abstract. The penetration of renewable energy sources (RES) into the electricity supply is gaining popularity all over the world, including countries that have large oil and gas reserves, sinceContinue reading “A Statistical Analysis of Wind Speed Probabilistic Distributions for the Wind Power Assessment in Different Regions”
Power Quality Blog 