摘要
2007年7月14日南宁变电站500kV南玉II线遭受雷击跳闸,其A相氧化锌避雷器发生绝缘损坏故障,通过对该避雷器的解剖分析,发现故障的原因是由于线路遭受雷击,避雷器内部并联电容器在受到较高电压的冲击下被击穿导致绝缘损坏,并提出相应的预防对策。
The metal-oxide arresters （MOA） lightening-caused insulation fault of the phase A at Nanning substation of the 500 kV Nanyu Ⅱ line on July 14, 2007 is analyzed through dissection of the MOA, discovering that the fault was due to the damage of its internal parallel capacitor on the impact of higher voltage impulsion from lightning and furthermore putting forward corresponding prevention measures.
出处
《南方电网技术》
2007年第2期75-78,共4页
Southern Power System Technology
