有关低压配电系统接地设计的几个问题

Several Questions about the Grounding Design of Low Voltage Distribution System

随着科技的进步,电网系统变得越来越复杂,接地故障频繁发生,甚至直接威胁到设备和人身的安全,因而接地故障保护越来越引起电气设计人员的重视。然而现阶段一些电气设计人员对规范的理解、设计手册的应用仍存在许多偏差,导致设计缺陷,给整个工程带来安全隐患。本文仅从实际出发,对污水处理工程设计中常出现的低压配电系统接地故障保护问题进行阐述,供广大电气设计人员正确理解和应用规范条文及设计手册做参考。

With the advancement of technology,grid systems have become more and more complex,and ground faults have occurred frequently,directly threatening the safety of equipment and personnel.Therefore,ground fault protection has increasingly attracted the attention of electrical designers.However,at this stage,some electrical designers have many deviations from the understanding of the specifications and the application of the design manual,resulting in design defects and bringing security risks to the entire project.The article only starts from the actual situation,expounds the problem of ground fault protection of low-voltage distribution system often appear in the design of sewage treatment engineering,for the majority of electrical designers to correctly understand and apply the specification and design manual for reference.