Measurement of Power Characteristics in Public Lighting Networks

Published by Peter JANIGA, Dionýz GAŠPAROVSKÝ, Slovak University of Technology in Bratislava Abstract. The aim of this paper is to share the results of measurements in public lighting networks of current status in terms of electrical characteristics. Based on the measurements it is possible to create an image of the actual power proportions in publicContinue reading “Measurement of Power Characteristics in Public Lighting Networks”

Analysis of Measured Data at the Point of Complaints to Power Quality

Published by Petr ROZEHNAL, Jan UNGER, Petr KREJCI, VŠB-Technical University of Ostrava Abstract. Electricity is one of the most important energy that uses both in the home and in industry. For good and seamless use of electricity are important its quality. Deteriorating power quality is increasingly becoming an important problem for the industry and serviceContinue reading “Analysis of Measured Data at the Point of Complaints to Power Quality”

Some Results of Research into Harmonics in the High Voltage Networks with Distributed Nonlinear Loads

Published by Lidiia KOVERNIKOVA, Energy Systems Institute of the Siberian Branch of the Russian Academy of Sciences Abstract. The paper presents the results of the analysis of harmonic parameters that were measured at the nodes of connecting railway substations to the feeding network. Traction load is nonlinear, unbalanced and stochastic. The 3-rd and 5-th harmonicsContinue reading “Some Results of Research into Harmonics in the High Voltage Networks with Distributed Nonlinear Loads”

Harmonic Measurement Data Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Measurement Data Evaluation, Document ID: PQS1001, Date: March 15, 2010. Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents a harmonic data analysis for a utility 12.47kV substation monitoring locationContinue reading “Harmonic Measurement Data Evaluation”

Harmonic Current Cancellation Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Current Cancellation Evaluation, Document ID: PQS1002, Date: March 15, 2010. Abstract: Utility power system harmonic problems can often be solved using a comprehensive approach including site surveys, harmonic measurements, and computer simulations. This case study presents the results for a customer step-down transformer harmonic current cancellation evaluation.Continue reading “Harmonic Current Cancellation Evaluation”

General Reference – Modeling for Harmonic Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Modeling for Harmonic Analysis, Document ID: PQS0303, Date: January 10, 2003. Abstract: Harmonics have existed on electric power systems for many years. Recently, however, much more attention has been given to monitoring and analyzing the presence and effects of harmonics on utility and customer devicesContinue reading “General Reference – Modeling for Harmonic Analysis”

Harmonic Evaluation at an Industrial Facility

Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Evaluation at an Industrial Facility, Document ID: PQS0502, Date: March 31, 2005. Abstract: A harmonic evaluation was performed at the plastic film manufacturer’s facility. The goals of the evaluation were to develop a solution to mitigate the harmonic voltage distortion caused by the ac and dc adjustableContinue reading “Harmonic Evaluation at an Industrial Facility”

Selected Methods for Improving Power Reliability

Published by Krzysztof PRZYSTUPA1, Lublin University of Technology (1) Abstract. The article discusses the problem of the widespread use of devices that require increased quality electric power supply. An example of a practical division of electricity receipts into several categories is shown. Methods of increasing the reliability of power supply are described and the mostContinue reading “Selected Methods for Improving Power Reliability”

Operation of Electrical Vehicles Fast Charging Stations in Warsaw – Case Study of InnogyGO! Collecting Point

Published by Krzysztof ZAGRAJEK, Konrad WRÓBLEWSKI(1), Piotr BICZEL(2), Łukasz SOSNOWSKI(3),Warsaw University of Technology, Institute of Electrical Power Engineering (1); Institute of Theory of Electrical Engineering, Measurement and Information Systems (2) ; Innogy Stoen Operator (3) Abstract. The paper presents the problems of operating a fast charging station for electric vehicles in a collecting point ofContinue reading “Operation of Electrical Vehicles Fast Charging Stations in Warsaw – Case Study of InnogyGO! Collecting Point”

Electrical Vehicle Impact on Distribution Network Power Quality

Published by Sampsa KUPARI, Metropolia, Helsinki University of Applied Sciences Abstract: The electrical vehicle form a huge load (and occasionally a generator as well) that is not resistive but possibly of nonlinear character. This may have an effect on distribution network power quality and possibly disturb seriously other consumers. If this is not taken careContinue reading “Electrical Vehicle Impact on Distribution Network Power Quality”