Author Archives: PQBlog

Flywheel Energy Storage System Basics

Published by John Jeter, VYCON, EE Power – Industry Articles: Flywheel Energy Storage System Basics, September 23, 2021 Today, flywheel energy storage systems are used for ride-through energy for a variety of demanding applications surpassing chemical batteries. Flywheels are among the oldest machines known to man, using momentum and rotation to store energy, deployed asContinue reading “Flywheel Energy Storage System Basics”

Grounding of Wind Power Systems and Wind Power Generators

Published by Sergio Panetta, International Association of Electrical Inspectors (IAEI) Magazine, Evolving Technologies – Grounding of Wind Power Systems and Wind Power Generators, May 16, 2010 Power continuity is essential in wind power projects where a tripped overcurrent device due to ground fault can have serious economic or operational consequences. An arcing phase-to-ground fault canContinue reading “Grounding of Wind Power Systems and Wind Power Generators”

Surge Protection Application Examples

Published by Electrical Installation Wiki, Chapter J. Overvoltage protection – Surge protection Application examples SPD application example in Supermarket Solutions and schematic diagram • The surge arrester selection guide has made it possible to determine the precise value of the surge arrester at the incoming end of the installation and that of the associated disconnection circuitContinue reading “Surge Protection Application Examples”

Grounding and Bonding — New Questions and Answers

Published by Ark Tsisserev, International Association of Electrical Inspectors (IAEI) Magazine, Canadian Perspectives – Grounding and Bonding — New Questions and Answers, July 1, 2021 Although Section 10 of the Canadian Electrical Code, Part I (CE Code), which applies to grounding and bonding, has been re-written in the 2018 edition of the Code, I keep receivingContinue reading “Grounding and Bonding — New Questions and Answers”

The Influence of Selected Biomedical Research Equipment in the Aspect of Higher Harmonics Generating

Published by Anna KOZIOROWSKA1,2, Dariusz SOBCZYŃSKI3, Wiesława MALSKA3 Uniwersytet Rzeszowski, Wydział Matematyczno – Przyrodniczy, Instytut Techniki (1)Uniwersytet Rzeszowski, Centrum Biotechnologii Stosowanej i Nauk Podstawowych (2)Politechnika Rzeszowska, Wydział Elektrotechniki i Informatyki, Katedra Energoelektroniki i Elektroenergetyki (3) Abstract: Specialized biomedical laboratory equipment, very often use power converters, which are a source of higher harmonics. These devices dependingContinue reading “The Influence of Selected Biomedical Research Equipment in the Aspect of Higher Harmonics Generating”

Installation of Surge Protection Device

Published by Electrical Installation Wiki, Chapter J. Overvoltage protection – Installation of Surge Protection Device Connection of Surge Protection Device Connections of a SPD to the loads should be as short as possible in order to reduce the value of the voltage protection level (installed Up) on the terminals of the protected equipment. The total lengthContinue reading “Installation of Surge Protection Device”

Electrical Power Quality and Harmonic Concerns

Published by Chuck Gougler, International Association of Electrical Inspectors (IAEI) Magazine, Electrical Fundamentals – Electrical Power Quality and Harmonic Concerns, December 29, 2015 The Problem of Harmonics Harmonics are generated by nonlinear components in electrical systems, which distort the sine wave. Increasing usage of power electronics causes a corresponding increase in voltage distortion, or harmonics.Continue reading “Electrical Power Quality and Harmonic Concerns”

Overvoltage Assessment of Point-to-Point VSC-Based HVDC Systems

Published by Jose A. JARDINI1, Ricardo L. VASQUEZ-ARNEZ2, Marcos T. BASSINI1, Marco A.B. HORITA1, Gerson Y. SAIKI2 and Marcos R. CAVALHEIRO3 Polytechnic School of the University of Sao Paulo (1), Foundation for the Technological Development of the Engineering Sciences (2), CTEEP Sao Paulo State Power Transmission Company (3). Abstract. The application of voltage source convertersContinue reading “Overvoltage Assessment of Point-to-Point VSC-Based HVDC Systems”

Circuit Overcurrent Protection

Published by Clive Kimblin, International Association of Electrical Inspectors (IAEI) Magazine, Electrical Safety – Circuit Overcurrent Protection, March 16, 2002 Overcurrent devices protect the circuit conductors and conductor insulation from overheating. They also limit the damage associated with overheating and faults in downstream equipment. Fuses performed this function during the first days of electrical distribution,Continue reading “Circuit Overcurrent Protection”