Title :
Grounding of overhead transmission lines for improved lightning protection
Author :
Chisholm, William A. ; Petrache, Emanuel ; Bologna, Fabio
Author_Institution :
Kinectrics & the Univ. du Quebec a Chicoutimi, Toronto, ON, Canada
Abstract :
Improved grounding can be a cost-effective method to improve power quality by reducing the number of lightning flashovers on shielded overhead transmission lines. Improvements can be valued against benchmark values of cost per avoided customer momentary dip. Effectiveness of improvements can vary widely because the local soil resistivity varies with a wide statistical distribution. A portable impulse Zed-Meter00AE; can be used to measure the local transient response of transmission tower ground electrodes.
Keywords :
Conductivity; Costs; Flashover; Grounding; Lightning protection; Power quality; Power transmission lines; Soil; Statistical distributions; Transmission line measurements; conductivity; dipole antennas; grounding; impulse testing; lightning; power quality; power transmission reliability;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2010 IEEE PES
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
978-1-4244-6546-0
DOI :
10.1109/TDC.2010.5484321