Published by David Horning, March 2013. Power Monitors, Inc., White Paper: Understanding Telephone Interference Factor Abstract. Harmonic distortion that is produced from power conversion systems can cause interference on analog telephone lines. The degree of telephone interference can be expressed in terms of the Telephone Interference Factor (TIF). This white paper will discuss how interference isContinue reading “Understanding Telephone Interference Factor”
Yearly Archives: 2024
Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation
Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics Abstract. The paper presents the concept, implementation and operational effects of the multi-servers automatic reactive power compensation system in 6 kV industry electrical power grid. As controlled reactive power compensators were used synchronous motors, capacitors’ banks and passive filtersContinue reading “Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation”
Obtaining Feasibility of Power Flows in the Deregulated Electricity Market Environment
Published by Mariusz DRABECKI, Eugeniusz TOCZYŁOWSKI,Warsaw University of Technology, Institute of Control and Computation Engineering Abstract. In this paper we analyse a power dispatch method for obtaining feasible power flows, both active and reactive power, in terms of satisfying the transmission, voltage level and voltage angles’ constraints, under assumption that supply of electric power isContinue reading “Obtaining Feasibility of Power Flows in the Deregulated Electricity Market Environment”
Steps to Find the Source of Harmonics
Published by David Horning, November 2014. Power Monitors, Inc., White Paper: Steps to Find the Source of Harmonics Abstract. Harmonics are “Non-Linear” current or voltage in an electrical system. Any waveform that deviates from a perfect sine wave has harmonics. Any nonlinear load draws harmonic currents and therefore produces harmonic voltage distortion, by producing non-sinusoidalContinue reading “Steps to Find the Source of Harmonics”
Global Trends of Photovoltaic Energy Usage
Published by Lucjan KURZAK, Building Construction Faculty Czestochowa University of Technology, Poland Abstract. The market of photovoltaics is one of the most dynamically developing sectors of world economy. From the standpoint of the environment, the energy of solar radiation is the most attractive source. Both new materials and technological solutions, growing effectiveness of conversion ofContinue reading “Global Trends of Photovoltaic Energy Usage”
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”
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”
Anomalous Leakage Currents on Silicone Rubber Hollow Insulators
Published by Krystian Leonard CHRZAN1, Maciej ZIPP2,Wrocław University of Science and Technology (1), Gates Corporation (2) Abstract. Leakage currents on silicone and porcelain housings were measured at a 110 kV substation (site pollution severity class heavy) for 7 months. Both types of housing had a similar geometry. The current on porcelain housings is usually upContinue reading “Anomalous Leakage Currents on Silicone Rubber Hollow Insulators”
Investigation of Power Saving Modes in 10/0.4 kV Distribution Networks
Published by Oleksandr MIROSHNYK1, Andrzej SZAFRANIEC2, Kharkiv Petro Vasylenko National Technical University of Agriculture (1), Kazimierz Pulaski University of Technology and Humanities in Radom, Faculty of Transport, Electrical Engineering and Computer Science (2) Abstract. Operation modes of 0.4/0.23 kV power supply systems are modelled using Monte Carlo method by means of Electronics Workbench software and statisticalContinue reading “Investigation of Power Saving Modes in 10/0.4 kV Distribution Networks”
Understanding HVDC/FACTS Controller’s Sustainable Development & Comparative Analyses of GTO, GCT, IGBT, MTO, ETO, MCT and MOSFET Operations
Published by Badr Mesned Alshammari1, Tariq Masood2, Muhammad Tajammal Chughtai1, Samer Karim3, University of Hail, Hail, Saudi Arabia (1), Dukhan Operations, Qatar Petroleum (2), Maintenance Department QAFAC (3) Abstract. This article presents a comparative study through analyses regarding a number of power electronics devices. Power Electronic devices have innovative contribution to control the electrical powerContinue reading “Understanding HVDC/FACTS Controller’s Sustainable Development & Comparative Analyses of GTO, GCT, IGBT, MTO, ETO, MCT and MOSFET Operations”
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