某500kV变电站站内独立避雷针接地改造分析  

Independent Lightning Rod Grounding Transformation Analysis in 500 kV Substation

作　　者：王林[1] 宋雅楠[1] 赵啟旸 袁雪琼[1] 扈海泽 赵军[1] 付超[1] 黄帅[1] 禹荣勋 姜鹏[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,长沙410114 [2]黄河水利委员会河南黄河河务局,郑州450003

出　　处：《电瓷避雷器》2016年第2期85-89,共5页Insulators and Surge Arresters

摘　　要：变电站防雷接地好坏关系着整个变电站的安危,乃至整个电力系统的安全。目前部分变电站站内独立避雷针接地还存在很多问题,以某500 kV变电站站内独立避雷针接地存在的两个问题:避雷针接地与二次电缆沟距离太小、避雷针与道路距离太近为例,分析了变电站存在问题的危险性,并就存在问题提出了综合解决措施:将独立避雷针与主地网连接作为构架避雷针处理、二次电缆加装屏蔽保护、铺设砾石均压。通过计算、ATP-EMTP仿真等手段论证了解决措施的有效性。The quality of lightning protection and grounding have a deeply impact on the entire substation safety, even the whole power system. Currently there are lots of problems with independent lightning grounding in some substations, this paper discusses two issues within a 500 kV substation independent existence lightning rod： the lightning rod and the secondary cable channel distance is too small, the lightning rod and the road a short distance, for example, analysis of its the risk of problems. There is the problem to propose the integrated solutions： the independent lightning rod is connected to the main ground network architecture as a lightning rod handle, the second cable should be shielded and laying gravel equalizing. This article demonstrates the effectiveness of the corrective measures by calculating, ATP-EMTP simulation and other means.

关 键 词：500 KV变电站 独立避雷针 接地 改造分析 

分 类 号：TM63[电气工程—电力系统及自动化]