Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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一种直流系统接地故障排查方法的研究与分析

来源:电工电气发布时间:2017-06-20 12:20 浏览次数:3
一种直流系统接地故障排查方法的研究与分析
 
金宇1,邱凯翔2
(1 西安交通大学 电气工程学院,陕西 西安 710049;2 深圳供电局有限公司,广东 深圳 518001)
 
    摘 要:直流系统的可靠与否是变电站安全运行的重要保证,以500 kV 鲲鹏站直流系统为例,介绍了变电站直流系统的组成及其作用,通过二次图纸的分析阐述了直流系统接地故障排查的原则和方法,对直流系统接地选线装置的选线原理进行分析,并做了理论推导。这种理论分析与实际排查相结合的方法能够快速掌握现场工作方法,对现场工作具有指导意义。
    关键词:直流系统;接地故障;排查方法;接地选线
    中图分类号:TM862     文献标识码:A      文章编号:1007-3175(2017)06-0021-04
 
Analysis and Research of a Kind of Direct Current System Grounding Fault Detecting Method
 
JIN Yu1, QIU Kai-xiang2
(1 School of Electrical Engineering, Xi'an Jiaotong University, Xi’an 710049, China;
2 Shenzhen Power Supply Co., Ltd, Shenzhen 518001, China)
 
    Abstract: Whether the direct current system is reliable is the important guarantee of safe operation in transformer substation. Taking 500 kV Kunpeng direct current transmission (HVDC) system for example, this paper introduced the composition of HVDC and its functions. Via secondary blueprint analysis, this paper expounded the principles and methods of HVDC system grounding fault detection and carried out analysis of route selection principle of direct current system grounding line selection device, together with theoretical derivation. This kind of theoretical analysis, combined with the practical detecting method, could fast grasp the live working situation with guiding significance.
    Key words: direct current system; grounding fault; detecting method; ground wire
 
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