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”
Category Archives: Case Studies
Stator Earth Fault in 200MW Generator – A Case Study
Published by Mr. V.Veerapandi, Sr.Manager(ser)/SAS, Email:vpandi@bhelpswr.co.in Introduction One of 200 MW old machine was experienced stator earth fault and the unit was tripped when the load was around 154 MW. The stator earth fault was attended on emergency basis and the unit was brought back with minimum possible time. This article covers observations, analysis ofContinue reading “Stator Earth Fault in 200MW Generator – A Case Study”
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”
Analysis of Long-Time Efficiency of Photovoltaic Installation
Published by Jacek DĄBROWSKI, Ewa KRAC, Krzysztof GÓRECKI Katedra Elektroniki Morskiej, Akademia Morska w Gdyni Abstract. In the paper the results of long-time investigations of the photovoltaic installation situated in Gdynia Maritime University are presented. A short description of the considered installation and the weather station making possible continuous monitoring of weather parameters are included.Continue reading “Analysis of Long-Time Efficiency of Photovoltaic Installation”
Harmonic, Interharmonic and Supraharmonic Characterisation of a 12 MW Wind Park Based on Field Measurements
Published by Ana Maria Blanco1, Britta Heimbach2, Bruno Wartmann2, Jan Meyer1, Marco Mangani2, Martin Oeschger2 1Institute of Electrical Power Systems and High Voltage Engineering, Technische UniversitätDresden, Dresden, Germany2Elektrizitätswerk der Stadt Zürich – EWZ, Zurich, Switzerland1E-mail: ana.blanco@tu-dresden.de 24th International Conference & Exhibition on Electricity Distribution (CIRED), 12-15 June 2017.Session 2: Power quality and electromagnetic compatibility Abstract:Continue reading “Harmonic, Interharmonic and Supraharmonic Characterisation of a 12 MW Wind Park Based on Field Measurements”
Selected Aspects of Electrical Equipment Operation with Respect to Power Quality and EMC
Published by Paweł A. MAZUREK, Lublin University of Technology, Institute of Electrical Engineering and Electrotechnologies Abstract. The effectiveness of measures to improve the quality of electricity and the electromagnetic compatibility of electrical equipment is linked to limiting the disturbances introduced by receivers to the power grid and depends on the identification of such interference. TheContinue reading “Selected Aspects of Electrical Equipment Operation with Respect to Power Quality and EMC”
Billing Measurements in the High and Extra-High Voltage Network taking into Account the New Frequency Classes According to IEC 61869-1 ED2 (AFDIS)
Published by Roland Buerger (Senseleq B.V.), Dr. Thomas Heid (CONDIS SA) Internationally, it is not easy to specify the range of high voltage exactly. The boundary between medium and high voltage is between 30 kV and 100 kV, depending on local and historical conditions. In the current version of EN 50160 from 2020, the voltageContinue reading “Billing Measurements in the High and Extra-High Voltage Network taking into Account the New Frequency Classes According to IEC 61869-1 ED2 (AFDIS)”
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”
Industrial Harmonic Filter Design
Published by Electrotek Concepts, Inc., PQSoft Case Study: Industrial Harmonic Filter Design, Document ID: PQS0504, Date: June 30, 2005. Abstract: The industrial harmonic problem can be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. Simple calculations are used to determine the system resonant frequencies and then the preliminary model development isContinue reading “Industrial Harmonic Filter Design”
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