Affinity Energy – Infographic: Understanding the Impacts of Power Quality. Understanding power quality issues $15 billion is the annual cost of power quality issues. $130,000 are the potential costs for downtime in lost revenue for facilities. For mission critical facilities, that translates to $14,000 to $6.5 million every hour. It takes 17 hours for plants toContinue reading “What is your PQ IQ?”
Category Archives: Power Quality
Power Quality. Benefits of Utilizing FACTS Devices in Electrical Power Systems
Published by M.P.Donsión, & J.M. Rodríguez, Department of Electrical Engineering, University of Vigo, Campus of Lagoas Marcosende, 36310 Vigo (Spain), Email: donsion@vigo.es J.A. Güemes2, Department of Electrical Engineering, University of Basque Country (Spain) Abstract. Flexible AC transmission systems or FACTS are devices which allow the flexible and dynamic control of power systems. This paper isContinue reading “Power Quality. Benefits of Utilizing FACTS Devices in Electrical Power Systems”
What is Circuit Breaker Testing and How is it Done
Published by Carelabs (Carelabz), Website: carelabz.com Circuit Breaker Testing is utilised to test the operation of each switching systems and the programming of the entire tripping structure. Circuit Breaker Testing is essential to ensure the safe and reliable performance of this key link in the power asset chain. Circuit breakers perform three main tasks: They should conductContinue reading “What is Circuit Breaker Testing and How is it Done”
How do non-linear loads create current and voltage harmonics?
Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. The switch-mode power supply (SMPS), used in most digital electronic equipment, is an excellent example of a non-linear load. Because it draws current in non-sinusoidal pulses, the SMPS is a significant generator of harmonic currents.Continue reading “How do non-linear loads create current and voltage harmonics?”
Dranetz HDPQ Plus & SP Products and IEEE 519-2014
Published by Dranetz Technologies, Inc., Application Note Introduction IEEE Std. 519-2014, IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems is the most current recommended practice from the IEEE related to harmonics measurement and compliance. Although the recommended practices from the IEEE are usually only followed in North America, IEEE 519-2014 is usedContinue reading “Dranetz HDPQ Plus & SP Products and IEEE 519-2014”
Neutral Sizing in Harmonic Rich Installations
Published by Prof Jan Desmet, Hogeschool West-Vlaanderen, Email: jan.desmet@howest.be & Prof Angelo Baggini, Università di Bergamo, Email: angelo.baggini@unibg.it, June 2003 Source: Leonardo Power Quality Initiative (LPQI) Power Quality Application Guide Harmonics Neutral Sizing in Harmonic Rich Installations 3.5.1 Introduction This section discusses the sizing of neutral conductors in the presence of power quality problems suchContinue reading “Neutral Sizing in Harmonic Rich Installations”
What is Automatic Transfer Switch Testing & How is it Done
Published by Carelabs (Carelabz), Website: carelabz.com A transfer switch’s main job is to redistribute power from a grid to a backup source of power. The control panel system of a transfer switch is what makes the unit automatic in nature. Power failures can be detected immediately with the help of automatic transfer switch (ATS) and theContinue reading “What is Automatic Transfer Switch Testing & How is it Done”
Why do 3rd harmonic currents overload neutral conductors?
Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. Figure 7-1 shows how the sinusoidal currents on the phases of a 3-phase, 4-wire system with linear loads sum to return on the neutral conductor. The 120° phase shift between the sinusoidal load currents causesContinue reading “Why do 3rd harmonic currents overload neutral conductors?”
Evaluating Supraharmonics up to 150 kHz in Electric Vehicles at the University of Applied Sciences Bingen
Published by Jürgen Blum, Product Manager, Power Quality, A. Eberle GmbH & Co. KG In the first part of the measurement campaign of 2016, various electric vehicles were evaluated in terms of their charging behavior and their loading effects on the power grid. The evaluation covered from DC up to the 50th harmonic or supraharmonicsContinue reading “Evaluating Supraharmonics up to 150 kHz in Electric Vehicles at the University of Applied Sciences Bingen”
What is Contact Resistance Test and Why is Contact Resistance Testing Done
Published by Carelabs (Carelabz), Website: carelabz.com What is Contact Resistance Contact resistance is the resistance to current flow, due to surface conditions and other causes, when contacts are touching one another (in the closed condition of the device). This can occur between contacts of: Breakers Contactors Relays Switches Connectors Other switching devices Contact resistance testing alsoContinue reading “What is Contact Resistance Test and Why is Contact Resistance Testing Done”
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