Published by Abdelkader BOUDERBALLA1, Boubakeur ZEGNINI2, Tahar SEGHIER2,Abderrahmane TALEB Higher Normal School (ENS) of Laghouat (1), Amar TELIDJI University of Laghouat (2) Abstract. The protection of the equipment, the safety of persons and the continuity of the electrical supply are the main objectives of the grounding system. For its precise design, the possible potential distributionContinue reading “Determination of the Resistance of a Grounding System with Application of Finite Element Method”
Tag Archives: Safety/Protection
Impedance-Differential Relay as a Transmission Line Fault Locator
Published by Justyna HERLENDER, Jan IŻYKOWSKI, Eugeniusz ROSOŁOWSKI, Wroclaw University of Science and Technology, Department of Electrical Power Engineering Abstract. This paper deals with analysis of impedance-differential protection applied to locating faults on power transmission line. Based on the voltage and current measurements at both line ends, the differential impedance is calculated. It enables toContinue reading “Impedance-Differential Relay as a Transmission Line Fault Locator”
Excitation Type and Results of Simulated Electric Field Distribution in MV Cable Termination
Published by Maciej CIUBA1, Michał WOJCIECHOWSKI1, Maciej OWSIŃSKI2, Michał BORECKI1,Warsaw University of Technology, Koszykowa 75, 00-662 Warszawa, Poland (1)Institute of Power Engineering – Research Institute, Mory 8, 01-330 Warszawa, Poland (2) Abstract. The presented article discusses the differences in the results of the electric field simulation in a medium voltage heat-shrinkable cable termination with theContinue reading “Excitation Type and Results of Simulated Electric Field Distribution in MV Cable Termination”
Modeling the Transient Response of Lightning Current on Grounding Systems Wind Turbines
Published by Amina DJABOREBBI, Boubakeur ZEGNINI, Djillali MAHI, Amar TELIDJI University of Laghouat, PoBox 37 G, Mkam Laghouat 03000, Algeria. Abstract. The paper deals with transient analysis of grounding systems wind turbines. To improve the accuracy of lightning impact studies on wind power grid generation, it is necessary to develop faster, more accurate simulation toolsContinue reading “Modeling the Transient Response of Lightning Current on Grounding Systems Wind Turbines”
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”
Residual Current Devices in Installations with PV Energy Sources
Published by Stanislaw CZAPP, Gdańsk University of Technology. ORCID: 0000-0002-1341-8276 Abstract. The paper presents the principles of residual current devices (RCDs) application in photovoltaic (PV) installations. Provisions of standards in this regard are commented on, in particular, attention is drawn to the lack of obligation to use of RCDs in PV installations. The issue ofContinue reading “Residual Current Devices in Installations with PV Energy Sources”
The Effect of Cable Duct Diameter on the Ampacity of High-Voltage Power Cables
Published by Filip RATKOWSKI1,2, Michał KOŁTUN2, Stanislaw CZAPP1, Gdańsk University of Technology (1), Eltel Networks Energetyka SA (2). ORCID: 1. 0000-0002-4698-9729, 3. 0000-0002-1341-8276 Abstract. The ampacity of power cables depends, among others, on the conditions of heat dissipation from the cable to the environment. Cables are usually laid directly in the ground, but in someContinue reading “The Effect of Cable Duct Diameter on the Ampacity of High-Voltage Power Cables”
Medium Voltage Switching Transient Induced Potential Transformer Failures; Prediction, Measurement and Practical Solutions
Published by Daniel McDermit1, David D. Shipp2, Thomas J. Dionise3, Visuth Lorch4,1Sr. Project Manager Turner Construction Company Chicago, IL2PE Eaton Electrical Group Power Systems Engineering Warrendale, PA Fellow, IEEE3PE Eaton Electrical Group Power Systems Engineering Warrendale, PA Senior Member, IEEE4Eaton Electrical Group Power Systems Engineering Warrendale, PA Abstract— During commissioning of a large data center,Continue reading “Medium Voltage Switching Transient Induced Potential Transformer Failures; Prediction, Measurement and Practical Solutions”
Negative Sequence Current as a Breaker Failure Protection for Medium Voltage Grids
Published by 1. Tomáš ŠKUMÁT1, 2. Žaneta ELESCHOVÁ2,Západoslovenská distribučná, a. s. (1). Slovak University of Technology in Bratislava (2)ORCID. 2. 0000-0002-7596-108X Abstract. This paper focuses on situations in Medium Voltage (MV) grids where a feeder´s breaker failure occurred. This type of fault is quite severe but well handled in higher voltage systems (high voltage, extraContinue reading “Negative Sequence Current as a Breaker Failure Protection for Medium Voltage Grids”
Transformer Inspection and Testing
Published by Alex Roderick, EE Power – Technical Articles: Transformer Inspection and Testing, December 17, 2021. Installing a transformer is more than just connecting the wires, according to the wiring diagram. The first part of the installation process includes an initial inspection and testing of the transformer when it is received from the factory or warehouse.Continue reading “Transformer Inspection and Testing”
Power Quality Blog 