Published by Dranetz Technologies, Inc. Website: Dranetz.com PU (Per Unit) Explained PU stands for Per Unit. It is a term that electric utility engineers frequently use, and it was incorporated into IEEE 1159. PU is the percentage formed by dividing the actual voltage by the nominal. For example, a sag to 0.8 pu on a 480V circuitContinue reading “PQ Terms & Definitions”
Tag Archives: Power Factor
Manage Your Energy Expenses
Published by Dranetz Technologies, Inc., Case Study Utility energy and demand costs have a direct impact on a company’s bottom line. In fact, a typical commercial or industrial facility can save from 10% to as much as 35% annually on energy costs by implementing a comprehensive energy management plan. And while each facility will require an organizedContinue reading “Manage Your Energy Expenses”
Measuring PQ Issues in a Bus Depot Using Unipower HW and Software
Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se Introduction This case study explores how advanced power quality measurement technology facilitated the diagnosis of severe power quality disturbances in a bus depot. These disturbances, which neither the bus operator nor the bus manufacturer initially attributed to electrical quality issues, were ultimately traced toContinue reading “Measuring PQ Issues in a Bus Depot Using Unipower HW and Software”
Application of the Permanent Magnet Synchronous Motors for Tower Cranes
Published by Łukasz KNYPIŃSKI1,2, Jacek KRUPIŃSKI2, Poznan University of Technology(1), Krupinski Cranes Sp. z o.o.(2) Abstract. The paper presents the results of experimental research concerning the application of the permanent magnet synchronous motors for tower cranes. The modern permanent magnet synchronous motors (PMSM) are characterized by better operating parameters in relation to squirrel cage inductionContinue reading “Application of the Permanent Magnet Synchronous Motors for Tower Cranes”
Power Flow and Stability Analyses of a UPQC System Integrated into a Distribution Network
Published by Rachid Dehini1, Ryma Berbaoui, Othmane Abdelkhalek, Electrical engineering Department, University of Tahri Mohamed. B.P 417 BECHAR (08000), Algeria. ORCID: 1 https://orcid.org/0000-0002-8769-218X Abstract. This paper deals with the active and reactive power flow analysis inside the unified power quality conditioner (UPQC) during several cases. The UPQC is a combination of shunt and series activeContinue reading “Power Flow and Stability Analyses of a UPQC System Integrated into a Distribution Network”
Three-phase Four-wire Circuits Interpretation by Means of Different Power Theories
Published by Fernando P. MARAFÃO1, Eduardo V. LIBERADO1, Helmo K. M. PAREDES2, Luiz C. P. da SILVA2, Unesp – Univ Estadual Paulista (1), University of Campinas (2) Abstract. In order to contribute to the discussion of defining a generalized power theory, valid for unbalanced and non linear circuits, this paper discusses the relationship and discrepanciesContinue reading “Three-phase Four-wire Circuits Interpretation by Means of Different Power Theories”
Total Harmonic Distortion (THD) and Power Factor Calculation
Published by Alex Roderick, EE Power – Technical Articles: Total Harmonic Distortion (THD) and Power Factor Calculation, May 10, 2021. In this article, we will discuss how to measure total harmonic distortion and the power factor calculations utilized. Total harmonic distortion (THD) is the amount of harmonics on a line compared to the line fundamental frequency,Continue reading “Total Harmonic Distortion (THD) and Power Factor Calculation”
Impact of EV Charging Stations Integration on Power System Performance
Published by Wisam Mohamed Najem1, Shaker M. Khudher2, Omar Sh. Alyozbaky3, Department of Electrical Engineering, College of Engineering, University of Mosul, Iraq (1,2,3) ORCID: 1.0000‐0002‐9611‐6416; 2.0000‐0003‐3158‐7900; 3.0000‐0002‐9735‐1469 Abstract. Electric vehicles partner with clean energy to prevent carbon emissions attributed to internal combustion engine-powered traditional vehicles, gas-based power plants, and other environmental pollution sources. At theContinue reading “Impact of EV Charging Stations Integration on Power System Performance”
Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation
Published by Marian HYLA, Silesian University of Technology, Department of Power Electronics, Electrical Drives and Robotics Abstract. The paper presents the concept, implementation and operational effects of the multi-servers automatic reactive power compensation system in 6 kV industry electrical power grid. As controlled reactive power compensators were used synchronous motors, capacitors’ banks and passive filtersContinue reading “Multi-Servers System with Firebird Database for Automatic Reactive Power Compensation”
Power Factor Correction: Reactive Power Compensation Methods
Published by Ahmad Ezzeddine, EE Power – Technical Articles: Power Factor Correction: Reactive Power Compensation Methods, December 15, 2022. This article introduces power factor correction, why it is needed, and how to design it for the system. Increasing photovoltaic penetration tied to the grid has caused many problems for utility providers. One of the main problems is thatContinue reading “Power Factor Correction: Reactive Power Compensation Methods”
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