Lightning-caused distribution outages

Author

Chisholm, William A. ; Cress, Stephen L. ; Polak, Janusz

Author_Institution

Res. Div., Ontario Hydro, Toronto, Ont., Canada

Volume

2

fYear

2001

fDate

2001

Firstpage

1041

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2001 IEEE/PES

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-7285-9

Type

conf

DOI

10.1109/TDC.2001.971391

Filename

971391