灵活接地技术在10 kV配网项目中的应用分析

Analysis of Application of Flexible Grounding Technology in 10 kV Distribution Network Project

电力系统的接地效率对配网的安全运行至关重要,为提高10 kV配网项目的接地效率,降低感应电压和接地电阻,分析灵活接地技术在10 kV配网项目中的应用。根据配网接地设计要求和实际情况确定装置规格及参数,选择不同的连接方式,在10 kV配网中安装接地装置,设计灵活接地技术方案及实施流程,确保接地线路和设备的连接并保持接地电阻符合要求。应用结果表明,10 kV配网的接地电阻、感应电压、雷击故障率的实测结果均在标准值范围内,表明灵活接地技术可满足10 kV配网项目的规范化施工。

The grounding utility of power system is crucial for safe operation of distribution networks.In order to improve the grounding utility of 10 kV distribution network projects,reduce the size of induced voltage and grounding resistance,this paper analyzes the application of flexible grounding technology in 10 kV distribution network projects.According to the grounding design requirements and actual situation,the device specifications and parameters are determined,and different connection methods are selected.Grounding devices are installed in the 10 kV distribution network,and flexible grounding technology schemes and implementation processes are designed to ensure the connection of grounding lines and equipment and maintain grounding resistance that meets the requirements.The application results show that the measured grounding resistance,induced voltage,and lightning fault rate of the 10 kV distribution network are all within the standard range,indicating that flexible grounding technology is competent in the standardized application and construction of 10 kV distribution network projects.