Corona Characteristics and Series Optimization of Fittings for 1 000 kV UHV Transmission Lines

doi:10.11930/j.issn.1004-9649.202105030

Abstract

Abstract: The common corona problems of fittings for ultra high voltage alternating current transmission lines are analyzed based on the field test results of the Zhebei-Fuzhou 1000 kV UHV AC transmission line. According to the technical parameters of 1000 kV UHV AC transmission lines, structure design optimization is carried out for fittings such as suspension string, tension string, the grading and shielding ring of rigid jumper string based on the design, manufacture, construction and operation experience of 1000 kV UHV AC transmission line fittings in China. The optimization effect of the fittings is further verified through the full scale test of corona and noise of the suspension strings.

Key words: suspension string, tension string, rigid jumper, corona test, full scale test

NIU Haijun, ZHANG Xuesong, QUAN Shanshan, LIU Shengchun, SI Jiajun. Corona Characteristics and Series Optimization of Fittings for 1 000 kV UHV Transmission Lines[J]. Electric Power, 2022, 55(2): 108-114.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202105030

https://www.electricpower.com.cn/EN/Y2022/V55/I2/108

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