• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2019 72nd Conference for Protective Relay Engineers >A Tutorial on Optical Ground Wire Ratings Analysis for Protection Engineers
【24h】

A Tutorial on Optical Ground Wire Ratings Analysis for Protection Engineers

机译：保护工程师的光学接地线额定值分析教程

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Installation of an Optical Ground Wire (OPGW) is an increasingly common upgrade when replacing shield wire(s) on a transmission line, as it provides the added benefit of broadband communications capability. Utilizing such fiber installed inside the shield conductor comes with a substantial risk of damaging the communications circuit from annealing of the shield conductor due to ground fault current flow. The transient current-induced temperature rise on an OPGW is a simple calculation in itself, but sizing of an OPGW for adequate thermal capability requires careful consideration of numerous and often overlooked factors characterizing the total heating energy, many of which fall on the protection engineer to calculate. This paper provides a detailed overview of the principles and process to determine the required thermal withstand capacity of an OPGW and discusses a particularly complex case study with a novel mitigation solution.
机译：当替换传输线上的屏蔽线时，安装光学接地线（OPGW）是一种越来越普遍的升级，因为它提供了宽带通信功能的额外好处。使用安装在屏蔽导体内部的这种光纤存在很大的风险，即由于接地故障电流的流动，屏蔽导体的退火会损坏通信电路。 OPGW上由瞬态电流引起的温度升高本身是一个简单的计算，但是要确定OPGW的尺寸以使其具有足够的热容量，则需要仔细考虑表征总加热能量的众多且通常被忽略的因素，其中许多因素都需要保护工程师来解决。计算。本文详细介绍了确定OPGW所需热承受能力的原理和过程，并讨论了采用新型缓解解决方案的特别复杂的案例研究。

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