Simulation Analysis on lightning accident of ±500kV DC transmission line based on ATP-EMTP
作者:
YANG Li Bin, SIMA Wen-xia, YANG Qing
所属专业方向:
电力系统
摘要:
This paper calculates and researches on lightning
accident of ±500kV XING-AN DC transmission line in
GUANGDONG based on ATP-EMTP. the finding shows that:
when a 34.5kA lightning current strike to the positive polar
conductor , the grounding electrode line would produce the
unbalanced current as soon as the over-voltage arrived at the line
end. the over-voltage wave cause the insulator of the grounding
electrode line flashover on both side of the line, which would
aggravate the unbalance current of the grounding polar lines and
the unbalanced current causes the negative polar conductor
atresia.
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发表于 2011-4-20 22:08:57
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