...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Science, Measurement & Technology, IET >Enhancing the lightning performance of overhead transmission lines with optimal EGLA and downstream shield wire placement in mountainous areas: a complete study
【24h】

Enhancing the lightning performance of overhead transmission lines with optimal EGLA and downstream shield wire placement in mountainous areas: a complete study

机译：山区最佳EGLA和下游屏蔽线放置的架空传输线的闪电性能：完整的研究

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Service unavailability of transmission lines, particularly in mountain areas due to the direct and indirect lightning strikes, is considered as a challenging issue within electric companies. Therefore, the efforts to mitigate the power outages caused by this phenomenon have been introduced. In this study, an attempt has been made to study the different types of externally gapped line arresters (EGLAs) considering the Pinceti model and discharge voltage curve. Based on the best selected EGLA, the installation effect of EGLA on the possibility of instance back-flashover in different phases of the transmission line is investigated in the presence of downstream shield wire. For assessment, a double-circuit 400 kV transmission line in a mountainous area is modelled in EMTP-RV software. Then, an extensive analysis is carried out to verify the effectiveness of this method. The obtained results show the acceptable transmission line direct lightning protection can be achieved by four EGLAs in upper and middle phases with downstream shield wire. Although employing the downstream shield wires in the transmission line imposes more costs, but by using them, the scale and capability of EGLAs can be reduced.
机译：由于直接和间接的雷击导致的山区的运输线路，特别是在山区的服务不可用被认为是电气公司内有挑战性的问题。因此，已经介绍了减轻这种现象引起的停电的努力。在本研究中，考虑到Pinceti模型和放电电压曲线，已经尝试研究不同类型的外部覆盖线避雷器（EGLAS）。基于最佳选择的EGLA，在下游屏蔽线的存在下，研究了EGLA对传输线的不同阶段的实例反闪光装置的可能性。对于评估，在山区中的双电路400 kV传输线在EMTP-RV软件中建模。然后，进行广泛的分析以验证该方法的有效性。所获得的结果表明，可接受的传输线直接雷电保护可以通过下游屏蔽线的上部和中间阶段中的四个EGLA实现。尽管在传输线中采用下游屏蔽电线施加了更多的成本，但通过使用它们，可以降低EGLAS的规模和能力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号