Title :
SmartChoke - protecting power equipment from fast transients
Author :
Glinkowski, Mietek ; Piasecki, Wojciech ; Florkowski, Marek ; Fulczyk, Marek ; Arauzo, Francisco
Author_Institution :
ABB Medium Voltage Bus. Unit, Raleigh, NC
Abstract :
Fast transients in power systems can damage cables, motors, transformers, instrument transformers, reactors, and other equipment in both distribution and transmission networks. They are generated not only by lightning, but also by system switching operations or even by power electronics. As discovered more recently, the interaction between devices with specific high- frequency characteristics can lead to abnormal and harmful surges with steep fronts and high frequency components. Often, the existing means of surge protection, like surge capacitors, ZnO arresters, and even RC snubbers are not sufficient or are too cumbersome to be installed effectively against these surges. SmartChoke is a new type of device that can provide a better way of protecting the system. This paper presents some experimental verifications of the effectiveness of the device. Subsequent publications will also describe the device technology and more detailed application examples in the distribution networks.
Keywords :
arresters; lightning; power distribution protection; power electronics; power transformers; power transmission protection; snubbers; RC snubbers; SmartChoke; ZnO arresters; distribution networks; lightning; power electronics; power equipment protection; power systems; surge capacitors; surge protection; system switching operations; transmission networks; Cables; Frequency; Inductors; Instrument transformers; Lightning; Power electronics; Power generation; Power system protection; Power system transients; Surge protection; Power Distribution; high frequency; surge protection; surges; switching transients;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2008. T&D. IEEE/PES
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-1903-6
Electronic_ISBN :
978-1-4244-1904-3
DOI :
10.1109/TDC.2008.4517051