2 Week Energy Survey

Published by Dranetz Technologies, Inc., Case Study Willows Swim Club is a private, member-owned swimming and recreational facility located in central New Jersey. The swim club provides kitchen space to a local restaurant to operate a food concession. Being offered as a service to its membership, there is presently no charge for rent or utilities. However, givenContinue reading “2 Week Energy Survey”

Glass Factory Failure of Electronic Controls

Published by Dranetz Technologies, Inc., Case Study The customer was experiencing repeated failures electronic controls and instruments in a new glass factory. The factory had been imported from a 60hz country to a 50hz country. In this case, the new factory capacity was reduced by 50% or more do the frequent shut downs and stoppages. The costContinue reading “Glass Factory Failure of Electronic Controls”

The Critical Role of Power Quality Evaluation in Solar Installations

Published by Dranetz Technologies, Inc., Application Note EXECUTIVE SUMMARY As solar photovoltaic (PV) systems become more prevalent in commercial and industrial environments, the emphasis on financial return and concise performance expectations has rightly intensified. However, one often-overlooked aspect of solar deployment is the comprehensive evaluation of power quality (PQ)—both before and after installation. By identifying existing gridContinue reading “The Critical Role of Power Quality Evaluation in Solar Installations”

Localizing Faults in Power Transmission Line with Applying Signals of Directional Elements at Both Line Ends

Published by 1. Justyna HERLENDER, 2. Jan IŻYKOWSKI, Wroclaw University of Science and Technology, Faculty of Electrical Engineering, Department of Electrical Power Engineering Professor emeritus. ORCID 1. 0000-0002-9469-4546; 2. 0000-0002-1048-551 Abstract. This paper presents the algorithm intended for localizing faults in a power transmission line for an inspection-repair purpose. Its innovative element is that aContinue reading “Localizing Faults in Power Transmission Line with Applying Signals of Directional Elements at Both Line Ends”

Selected Voltage Control Methods in LV Local Distribution Grids with High Penetration of PV

Published by Paweł SZCZEŚNIAK1, Piotr POWROŹNIK2, Elżbieta SZTAJMEC3, University of Zielona Góra, Institute of Automatic Control, Electronics and Electrical Engineering (1), University of Zielona Góra, Institute of Metrology, Electronics and Computer Science (2), Rzeszow University of Technology, Departament of Power Electronics and Power Engineering (3)ORCID: 1.0000-0002-5822-3878; 2.0000-0001-7485-9959; 3.0000-0002-2125-0207 Abstract. The growth in new prosumer electricityContinue reading “Selected Voltage Control Methods in LV Local Distribution Grids with High Penetration of PV”

Project of a Stratospheric Photovoltaic Power Station

Published by Stanisław BEDNAREK, Department of Physics and Applied Informatics, University of Łódź Abstract. The aim of this article is to present an innovative concept, concerning the design of a photovoltaic power plant located in the stratosphere. The most important advantage of this location is the increased access to solar energy, which can be convertedContinue reading “Project of a Stratospheric Photovoltaic Power Station”

Fiber Optic Technology for Pressure Measurements in High Voltage Switchgear

Published by 1. Damian KOSTYŁA1, 2. Paweł WĘGIEREK1, 3. Michał LECH1,Lublin University of Technology, Faculty of Electrical Engineering and Computer Science (1)ORCID: 1. 0000-0002-9012-0158; 2. 0000-0002-0812-3414; 3. 0000-0002-4732-2459 Abstract. The paper presents a review of traditional and fiber optic methods dedicated to pressure measurement in the context of ongoing research work on the development ofContinue reading “Fiber Optic Technology for Pressure Measurements in High Voltage Switchgear”

A Novel Method to Improve the Power Quality Via Hybrid System

Published by 1. Raghad Adeeb Othman1, 2. Omar Sh. Alyozbaky2,Department of Electrical Engineering, College of Engineering, University of Mosul, Iraq (1,2)ORCID: 1. 0000-0001-5875-9210; 2. 0000-0002-9735-1469 Abstract. Ever increasing electricity demand as well as the rapid depletion of fossil fuels have increased the need for hybrid power systems that integrate distributed energy resource (DER) systems; suchContinue reading “A Novel Method to Improve the Power Quality Via Hybrid System”

Power Consumption Control and Monitor using IoT Platform for Smart Office

Published by 1. Sahapong SOMWONG1, 2. Kritsada PUANGSUWAN2,Faculty of Engineering, Rajamangala University of Technology Srivijaya Songkhla, Thailand (1),Faculty of Science and Industrial Technology, Prince of Songkla University, Surat Thani Campus, Surat Thani, Thailand (2) ORCID: (1) 0000-0002-2693-494X; (2) 0000-0003-1613-0611 Abstract. This paper reports the study to design and develop a system for controlling and displayingContinue reading “Power Consumption Control and Monitor using IoT Platform for Smart Office”

What Caused the Big Blackout in Spain and Portugal?

Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se On 28 April 2025, at 12:33 CET, the power systems of Spain and Portugal experienced a total blackout. Investigation is still in progress. Above and below is 30 minutes of high-resolution waveform data we could extract from a meter in the Portuguese grid. We couldContinue reading “What Caused the Big Blackout in Spain and Portugal?”