Lightning back flashover tripping patterns on a 275/132 kV quadruple circuit transmission line in Malaysia
Lightning back flashover tripping patterns on a 275/132 kV quadruple circuit transmission line in Malaysia
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DOI：
10.1049/iet-smt.2015.0199
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发表时间：
2016-07-01
影响因子：
1.4
通讯作者：
Terzija, Vladimir
中科院分区：
文献类型：
--
作者：
Abd Halim, Syahirah;Abu Bakar, Ab Halim;Terzija, Vladimir
恶劣的雷电环境已成为架空输电线路停电的主要原因。为了最大限度地减少雷电过电压的影响，在实施特定的保护方法之前，有必要进一步评估任何线路的雷电性能。因此，在这项工作中，在马来西亚的275/132 kV四重钢杆塔的背闪跳闸模式进行了深入的研究。几个设计参数，如雷电流的大小，塔基电阻和工频电压的变化，以调查其对线路性能与雷电事件的影响。结果表明，各参数对闪络形态有显著影响。在每种情况下，在较高电压电路（275千伏）上没有记录到闪络，即使线路由高层结构组成，这可能更容易受到上部雷击的影响。不考虑塔高的影响，闪络主要发生在132 kV线路上，由于线路绝缘水平的差异。所得结果用于设计适当的保护方案，以进一步提高输电线路的耐雷性能，主要是在减少双回线路停电方面。
Severe lightning environment has been the major cause of overhead transmission line outages. In order to minimise the impact of lightning overvoltage, it is necessary to further evaluate lightning performance of any line before implementing specific protection methods. Therefore, in this work, a thorough study on back flashover tripping patterns of a 275/132 kV quadruple steel monopole towers in Malaysia is presented. Several design parameters such as lightning current magnitude, tower footing resistance and power frequency voltage were varied to investigate their influences on the line performance associated with lightning events. The results show that each parameter gives a significant effect on the flashover patterns. For each case, no flashover was recorded on the higher voltage circuits (275 kV), even though the line consists of tall structures, which might be more susceptible to lightning strikes at the upper part. Regardless of the effect of tower height, flashovers occur mainly on 132 kV circuits due to difference in the line insulation level. The results obtained were then used in designing appropriate protection scheme to further improve the transmission line lightning performance, mainly in terms of reducing the double circuit line outages.