首页> 外文会议>International Conference on Lightning Protection >New spark-gap technology with efficient line-follow current suppression for the protection of powerful LV distribution systems
【24h】

New spark-gap technology with efficient line-follow current suppression for the protection of powerful LV distribution systems

机译:具有高效线路的新的火花间隙技术,遵循电流抑制,以保护强大的LV分配系统

获取原文

摘要

The electrical properties of low-voltage power systems (LVPS) can have a strong effect on the operational behavior of surge protective devices (SPDs) to be used for protection purposes. Besides the right selection, the qualification-testing of SPDs connected these systems has to be carried out under test conditions which meet the real operating conditions of the power systems in which these SPDs should be installed. In this regard, the “class I and Π operating duty tests” according to IEC 61643-11, chapter 8.3.4.3 is an essential test for the qualification of SPDs connected to LVPS. In this test the SPD is stressed with defined surge-current impulses while it is connected to a power system simulating the characteristic of the real LVPS in which the SPD should be installed. The focus of the work presented is laid on class I SPD based on a newly developed “line-follow current free” spark-gap technology. Fundamental aspects, like basic functional principles, construction details, the performance and also the advantages of this new class I SPD technology are presented and discussed in detail. A special focus is set on the performance of this technology in case of use in powerful LVPS with short-circuit currents up to 100 kA rms.
机译:低压电力系统(LVPS)的电性能可以对用于保护目的的浪涌保护装置(SPD)的操作行为产生强烈影响。除了正确的选择外,还必须在符合应安装这些SPD的功率系统的实际操作条件的测试条件下进行这些系统的SPDS连接这些系统的资格测试。在这方面,根据IEC 61643-11,第8.3.4.3章的“I和π实用占空比”,是对连接到LVPS的SPD的资格的重要测试。在该测试中,SPD通过限定的浪涌电流脉冲强调,同时连接到模拟应安装SPD的真实LVP的特性的电力系统。提出的作品的重点是基于新开发的“线路电流免费”的Spark-Gap技术,奠定了I类SPD。基本方面,如基本功能原则,施工细节,性能以及这种新型I类SPD技术的优势,并详细讨论。在强大的LVPS中使用高达100 kA rms的短路电流的情况下,可以采用特殊重点。

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