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”
Tag Archives: Power Quality
Comparison of Compact Fluorescent to Incandescent Bulbs
Published by Dranetz Technologies, Inc., Case Study With the proliferation of Compact Florescent (CF) lighting, we thought it would be interesting to do a side by side comparison to an incandescent bulb using our new Energy Platform EP1. Not only is it a great demonstration of the capabilities of the EP1 but it’s also an opportunity toContinue reading “Comparison of Compact Fluorescent to Incandescent Bulbs”
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”
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”
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?”
High impedance Fault Detection in Low Voltage Overhead Distribution based Wavelet and Harmonic Indices
Published by Enaam ALBANNA1, Alya H. AL-RIFAIE2, Ahmed A. Abdullah AL-KARAKCHI3, Northern Technical University (1,2,3) ORCID: 1. 0000-0002-3974-0116; 2. 0000-0002-7978-2193; 3. 0000-0003-1151-3015; Abstract. High-impedance fault HIF occurs when an energized conductor makes contact with a surface with a high impedance. Conventional overcurrent protection cannot detect this fault due to the low fault current, and thereContinue reading “High impedance Fault Detection in Low Voltage Overhead Distribution based Wavelet and Harmonic Indices”
Design PV Power System: A Case Between Two Different Types of Solar Modules
Published by 1. Ali N. Hamoodi1, 2. Waseem Kh. Ibrahim2, 3. Aseel Thamer Ebrahem3, Northern Technical University (1), Northern Technical University (2), Northern Technical University (3)ORCID: 1. 0000-0003-0991-3538; 2. 0000-0002-9126-7872; 3. 0000-0002-1090-0454 Abstract. A photovoltaic (PV) is a technical terminology that is used to generate electricity from sunlight. Solar energy is one of the solutionsContinue reading “Design PV Power System: A Case Between Two Different Types of Solar Modules”
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