Title :
Lightning-caused distribution outages
Author :
Chisholm, William A. ; Cress, Stephen L. ; Polak, Janusz
Author_Institution :
Res. Div., Ontario Hydro, Toronto, Ont., Canada
Abstract :
Two rural distribution systems in Ontario, Canada were instrumented to study the relations between lightning events and power system disturbances. Strong time-of-day and time-of-year trends were found in the momentary operation history and component damage rates over four years of study. Implications for the entire Hydro-One Network design philosophy have been drawn from recent advances in the computation of induced overvoltages above lossy earth for overhead lines, inside lossy earth for cables and into two-layer soil for ground electrodes
Keywords :
earthing; lightning protection; overvoltage; power distribution faults; power distribution protection; power system transients; Canada; component damage rates; ground electrodes; induced overvoltages; lightning events; lightning-caused distribution outages; lossy earth; momentary operation history; overhead lines; power system disturbances; rural distribution systems; time-of-day trends; time-of-year trends; two-layer soil; Circuits; Computer networks; Electricity supply industry; History; Instruments; Lightning; Power systems; Statistical distributions; Surges; Voltage;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2001 IEEE/PES
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7285-9
DOI :
10.1109/TDC.2001.971391
