Published by Mark Wojdan, P.E., Date: Aug. 23, 2018. Hydro Ottawa’s central power quality program improves asset reliability while generally lowering operating and maintenance expenses. Many utilities have experienced how labor intensive it is to retrieve and compare power quality (PQ) data from numerous devices and systems, no matter the infrastructure in place. Delays andContinue reading “Power Quality Monitoring Provides Additional Value”
Yearly Archives: 2022
Hybrid Power System of Public Lighting in Smaller Villages
Published by Stanislav MIŠÁK, Jaroslav ŠNOBL, František DOSTÁL, Daniel DIVIŠ, VSB – Technical University of Ostrava Abstract. This article deals with the possibility of public lighting power from renewable resources, it means of a hybrid system consisting of solar panels and wind power. The factual data for dimensioning the system was obtainedby extensive exploration ofContinue reading “Hybrid Power System of Public Lighting in Smaller Villages”
Impact of Protective Relays on Voltage Sag Index
Published by Xinke GAO1,2 , Yapeng LIU3 , Congying WANG4,School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University (1),Institute of Information Technology Luoyang Normal College (2),Power Supply of Qingdao Company, Shandong Electric Power Corporation (3),School of foreign language, Shanghai Jiao Tong University (4) Abstract. This paper provides the probability-assessment analysis on the characteristicContinue reading “Impact of Protective Relays on Voltage Sag Index”
General Reference – Utility Capacitor Switching – Common Waveforms
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Utility Capacitor Switching – Common Waveforms, Document ID: PQS0707, Date: January 1, 2007. Abstract: The application of utility capacitor banks has long been accepted as a necessary step in the efficient design of utility power systems. Also, capacitor switching is generally considered a normal operationContinue reading “General Reference – Utility Capacitor Switching – Common Waveforms”
Electrical Energy Storage Systems
Published by Zdeněk HRADÍLEK, Petr MOLDŘÍK, Roman CHVÁLEK VŠB – Technical University of Ostrava, Department of Electrical Power Engineering Abstract. Attention is paid to the electrical energy storage systems that are already used in the framework of electrical power system, and further to the systems that are studied and developed for this purpose. The describedContinue reading “Electrical Energy Storage Systems”
Prospective Short Circuit Test and Prospective Fault Current Test (PSC & PFC TEST)
Published by Carelabs, Carelabs (Carelabz) is authorized provider of Electrical Installation’s Study, Analysis, Inspection, and Certification services in UAE. Website: carelabz.com Prospective Short Circuit (PSC) and Prospective Fault Current (PFC) are both intended to calculate the highest current that will stream within a fault loop path during the occurrence of an electrical flaw as needed by rules. The Prospective Short Circuit Current (PSC) is the utmost current that could flow between Line and Neutral conductors onContinue reading “Prospective Short Circuit Test and Prospective Fault Current Test (PSC & PFC TEST)”
General Reference – Utility Capacitor Switching
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Utility Capacitor Switching, Document ID: PQS0302, Date: January 10, 2003. Abstract: The application of utility capacitor banks has long been accepted as a necessary step in the efficient design of utility power systems. Also, capacitor switching is generally considered a normal operation for a utilityContinue reading “General Reference – Utility Capacitor Switching”
Study of Power Quality Disturbance for Restructuring of Power Systems
Published by Rimjhim Tiwari, Dilip Kumar, International Journal of Engineering and Technical Research (IJETR), ISSN: 2321-0869, Volume-2, Issue-12, December 2014. Abstract— In recent years, the traditional power systems’ structures have been changed, and the concern over power quality has increased due to the new generation of load equipments. This equipments has been fully automated electronically,Continue reading “Study of Power Quality Disturbance for Restructuring of Power Systems”
2017 Opportunities and Challenges… A View From PJM Interconnection
Published by Craig Glazer, Vice President-Federal Government Policy, PJM Interconnection. WIRES University, Congressional Briefing, Date: February 16, 2017. Presented by WIRES – a national coalition of entities dedicated to investment in a strong, well-planned and environmentally beneficial electricity high voltage transmission system in the US.
Distribution Transformers Protection Against High Frequency Switching Transients
Published by Dariusz SMUGAŁA1, Wojciech PIASECKI1, Magdalenia OSTROGORSKA1,Marek FLORKOWSKI1, Marek FULCZYK1, Paweł KŁYS2ABB Sp.z.o.o., Corporate Research Center, (1), ABB Sp.z.o.o., ABB Distribution Transformers, (2) Abstract. Distribution transformers protection method against high frequency transients generated during Vacuum Circuit Breaker (VCB) operations is presented in this paper. ATP/EMTP simulations of transients generated during the VCB operation andContinue reading “Distribution Transformers Protection Against High Frequency Switching Transients”
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