State Grid Zhejiang Electric Power Co., Ltd. Taizhou Power Supply Company

Taizhou Hongda Electric Power Construction Co., Ltd.

Guanglei Wan

Jun Liu

Jian Yang

Kang Wang

Feng Guo

Jiandong Si

Huan Liu

Wenhui Li

Xu Jiang

Bin Tang

Xin Lv

Jianguo Pan

Qiuxiao Wang

Junzhe Liang

Yiqin Tang

Chengshi Zeng

Disclosed is a multi-dimensional analysis method for a tripping risk of a whole transmission line due to a lightning shielding failure. A quantity of thunderstorm days, a tower size, a terrain proportion, an altitude, and insulation configuration data are collected for a transmission line for which a tripping risk due to a lightning shielding failure needs to be analyzed, and a striking distance, an exposure distance, a lightning resisting level of the line after altitude factor correction, and a lightning shielding failure risk of a single-base tower are calculated in turn. Characteristics of a lightning shielding failure under different nominal heights, quantities of thunderstorm days, and terrains are studied. Representative combination conditions are selected to calculate a tripping risk of a typical tower due to the lightning shielding failure. A weight coefficient is extracted, to calculate a tripping risk of the whole line due to the lightning shielding failure.

Multi-dimensional analysis method for tripping risk of whole transmission line due to lightning shielding failure

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Zhejiang, China

Guanglei Wan