• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Information Science and Control Engineering >The engineering practice and case analysis of substation grounding grid design
【24h】

The engineering practice and case analysis of substation grounding grid design

机译：变电站接地网设计的工程实践与案例分析

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

摘要

To meet the requirement of developing electric power grid, safety performance of substation grounding grid becomes one of the most common focused issue of substation grounding grid design. Characteristic parameters is the key to achieve an accurate evaluation for substation grounding grid. Several measures such as formula calculation, simulation, and actual test were utilized to compare the accuracy in grounding grid characteristic parameters evaluating, taking one typical 500kV substation with high soil resistivity for instance. Analysis of problem existing and factor contributing is also involved in this article. The analysis results show that the depth of the grounding grid soil resistivity is not enough and the influence of the fault current provided by the substation lines on the shunt coefficient is not the main factor of the accuracy of the grounding grid design. In the substation grounding project design stage, test the depth of the soil resistivity of at least 2/3 diagonal substation system, maximum operating mode and through the scheduling of parts of the single phase grounding short circuit current grounding shunt coefficient calculation, can significantly improve the accuracy of design parameters of grounding grid.
机译：为了满足发展电网的要求，变电站接地网的安全性能成为变电站接地网设计中最普遍关注的问题之一。特性参数是对变电站接地网进行准确评估的关键。以某典型的500kV高土壤电阻率变电站为例，通过公式计算，仿真，实测等方法比较了接地网特征参数评估的准确性。本文还涉及对存在的问题和因素促成的分析。分析结果表明，接地网土壤电阻率的深度不够，变电站线路提供的故障电流对分流系数的影响并不是接地网设计精度的主要因素。在变电站接地工程设计阶段，测试至少2/3对角变电站系统土壤电阻率的深度，最大工作模式并通过调度零件的单相接地短路电流接地​​分流系数的计算，可以显着提高接地网设计参数的准确性。

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