Author Archives: PQBlog

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”

General Reference – Modeling for Transient Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Modeling for Transient Analysis, Document ID: PQS0316, Date: July 18, 2003. Abstract: Transient voltage and currents are a result of sudden changes within the electric power system. Opening or closing of a switch or circuit breaker causes a change in circuit configuration and the associatedContinue reading “General Reference – Modeling for Transient Analysis”

A Methodological Proposal for Monitoring, Analyzing and Estimating Power Quality Indices: the case of Bogotá-Colombia

Published by L. E. Gallego, Student Member IEEE, H. Torres, Member IEEE, F.A. Pavas, Student Member IEEE, D.F. Urrutia, Student Member IEEE, G. A. Cajamarca, and D. Rondón, Student Member IEEE. Abstract—The Estimation of Power Quality (PQ) indices has a vital importance on the development of national PQ standards not only because provides truthful informationContinue reading “A Methodological Proposal for Monitoring, Analyzing and Estimating Power Quality Indices: the case of Bogotá-Colombia”