Analysis and discussion on lightning disturbance on 110kV transmission line in mountainous area

This paper focus on lightning disturbance on 110 kV transmission line in Anhui Chizhou electric power supply company, and discovers that, most of lightning disturbances happened in mountainous area are counterattack, which are caused by lightning striking on overhead tower or shielding wires, but in...

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Bibliographic Details
Published in2008 43rd International Universities Power Engineering Conference pp. 1 - 4
Main Authors Jing Liangbing, Li Jinglu, Xu Genyang, Yan Xiping
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2008
Subjects
110kV transmission line
Accidents
analysis
Grounding
Insulators
Lightning
lightning accidence
lightning protection
Poles and towers
Resistance
Voltage control
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Summary:This paper focus on lightning disturbance on 110 kV transmission line in Anhui Chizhou electric power supply company, and discovers that, most of lightning disturbances happened in mountainous area are counterattack, which are caused by lightning striking on overhead tower or shielding wires, but in some special area, shielding failure also happens sometimes. Based on mechanism of counterattack and shielding failure, the paper analyzes problem existed in anti-accidence measure for 110 kV transmission line in mountainous area, proposes multiple lightning protections connected to practical conditions, such as reducing grounding resistance of transmission line towers, erecting coupling earth wire, introducing line surge arrester, installing lateral lightning rod, reinforcing insulation, and so on, which are helpful to other 110 kV transmission line in mountainous area.
ISBN:9781424432943
1424432944
DOI:10.1109/UPEC.2008.4651628