Title :
Crest ground resistance of a HV tower: practical measurement with a portable impulse generator of a few amps
Author :
Lanoie, R. ; Fortin, J.
Author_Institution :
IREQ, Hydro-Quebec, Varennes, Que., Canada
Abstract :
Lightning strikes may cause a rise in transmission tower potential which could produce a tower-to-phase flashover. This paper presents a computer-modeled technique applied to study this phenomena. 120 kV and 315 kV power lines have been modeled. Transmission tower potential is presented. An analysis method related to a miniaturized lightning wave generator (known as “GOFM”) is currently undergoing validation. A few test results are given
Keywords :
electric resistance measurement; flashover; impulse testing; lightning; poles and towers; pulse generators; 120 kV; 315 kV; GOFM miniaturized lightning wave generator; HV tower; computer-modeled technique; crest ground resistance; lightning strikes; portable impulse generator; tower-to-phase flashover; transmission tower potential; Circuit simulation; Circuit testing; Electrical resistance measurement; Flashover; Grounding; Insulation; Lightning; Poles and towers; Voltage; Wire;
Conference_Titel :
Transmission and Distribution Construction, Operation and Live-Line Maintenance Proceedings. 2000 IEEE ESMO - 2000 IEEE 9th International Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6625-5
DOI :
10.1109/TDCLLM.2000.882839
