Published by Stanisław GALLA, Arkadiusz SZEWCZYK,Gdansk University of Technology Faculty of Electronics, Telecommunications and Informatics Abstract. In the paper authors present results of observation of input power changes versus harmonics amplitude in supply voltage of low-power power supply device. In the study, the electrical measurements supported with thermal imaging were used. The input circuit elementsContinue reading “The Measurement of Input Power of Power Supply in Network Disturbed by Low Frequency Distortions”
Tag Archives: Power Distribution
Method of Selecting the Most Important Power Lines in a Transmission and Distribution Network
Published by Dalibor VALEK, Radomir SCUREK, Technical University of Ostrava, Faculty of Safety Engineering Abstract: This article describes the method used to graph theory in security analysis. For the pursposes of this study, an environment is referred to here as a network of power lines and devices and a power grid is considered as aContinue reading “Method of Selecting the Most Important Power Lines in a Transmission and Distribution Network”
Transmission System Harmonics Study
Published by Electrotek Concepts, Inc., PQSoft Case Study: Transmission System Harmonics Study, Document ID: PQS0501, Date: March 31, 2005. Abstract: A utility presently operates two 16.8 MVAr capacitor banks in a 161/69kV substation. Supplied by this substation are residential, commercial, and industrial loads, including a steel manufacturing facility. For increased voltage support, the utility is investigatingContinue reading “Transmission System Harmonics Study”
Case Study on Fault Analysis Using PMU
Published by Prithwish Mukhopadhyay, General Manager, prithwish.mukhopadhyay@posoco.in,Rajkumar Anumasula, Senior Engineer, rajkumar@posoco.in, Abhimanyu Gartia, Deputy General Manager, agartia@posoco.in, Chandan Kumar, Engineer, chandan.wrldc@posoco.in, Pushpa Seshadri, Chief Manager, pushpa_seshadri@posoco.in, Sunil Patil, Engineer, skpatil@posoco.in , WRLDC, Mumbai, India Abstract — Synchrophasors are used extensively in Indian Grid to detect and analyze faults occurring in the system. This paper majorlyContinue reading “Case Study on Fault Analysis Using PMU”
An Introduction to Microgrid Energy Management Systems
Published by Anushree Ramanath, EE Power – Technical Articles: An Introduction to Microgrid Energy Management Systems, July 05, 2021. This article highlights the growth of microgrids and the components of these systems. With the growing number of industries and businesses, access to reliable and cost-effective power is critical. This leads to demand for small-scale powerContinue reading “An Introduction to Microgrid Energy Management Systems”
Harmonics Standards
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Harmonics standards Harmonic emissions are subject to various standards and regulations: • Compatibility standards for distribution networks• Emissions standards applying to the equipment causing harmonics• Recommendations issued by Utilities and applicable to installations In view of rapidly attenuating the effects of harmonics, a tripleContinue reading “Harmonics Standards”
Main Effects of Harmonics in Electrical Installations
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Main effects of harmonics in electrical installations Effects of harmonics – Resonance The simultaneous use of capacitive and inductive devices in distribution networks may result in parallel or series resonance. The origin of the resonance is the very high or very low impedance values atContinue reading “Main Effects of Harmonics in Electrical Installations”
Monitoring of Low Voltage Grids with the use of SAIDI Indexes
Published by Zbigniew ŁUKASIK1, Jacek KOZYRA1, Aldona KUŚMIŃSKA-FIJAŁKOWSKA1Uniwersytet Technologiczno-Humanistyczny w Radomiu, Wydział Transportu i Elektrotechniki (1) Abstract. A new method of established and justified level of operational costs for distribution network operators in a new model of regulation in force in the years 2016 – 2020 is described in this article. The changes made inContinue reading “Monitoring of Low Voltage Grids with the use of SAIDI Indexes”
Operating Assessment of Local Power Grid Development Considered Captive Power Plant and Expanding Structure
Published by Arif Nur AFANDI1,2,3, Irham FADLIKA1, Langlang GUMILAR1, Takeshi HIYAMA4 1Electrical Engineering, Universitas Negeri Malang, Malang, Indonesia 2Center for Advanced Materials for Renewable Energy, Universitas Negeri Malang, Malang, Indonesia3Smart Power and Advanced Energy Systems Research Center, Batu, Jawa Timur, Indonesia4The IROAST, Kumamoto University, Kumamoto, Japan Abstract. Based on current developments related to the applicationContinue reading “Operating Assessment of Local Power Grid Development Considered Captive Power Plant and Expanding Structure”
Definition and Origin of Harmonics
Published by Electrical Installation Wiki, Chapter M. Power harmonics management – Definition and origin of harmonics Definition of Harmonics The presence of harmonics in electrical systems means that current and voltage are distorted and deviate from sinusoidal waveforms. Harmonic currents are caused by non-linear loads connected to the distribution system. A load is said toContinue reading “Definition and Origin of Harmonics”
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