数据中心接地方式、“断零”和四极开关选用问题的综合思考

成 光（新华三集团，天津市 300392）

汪 宏（新华三集团，北京市 100094）

Comprehensive Thinking on Grounding Mode,“Neutral Conductor Disconnection”

and Four‑pole Switch Selection for Data Center

CHENG Guang(New H3C Group,Tianjin 300392，China)

WANG Hong(New H3C Group,Beijing 100094，China)

Abstract：On the basis of the analysis of cases and architectures,the paper deals with and analyzes some difficult problems in the data center,such as power transformation and distribution system grounding mode,“neutral conductor disconnection”problem and four‑pole switch selection,and puts forward the idea that comprehensive thinking is needed to solve the interweaving problems related to electrical architecture of the data center,so as to find the best technical route and solution possible.

Key words：data center;neutral point;grounding mode;“neutral conductor disconnection”;stray current;four‑pole switch;reliability;comprehensive thinking

摘　要：通过对案例和架构的分析，探讨分析数据中心变配电系统接地方式、“断零”问题及四极开关选用等业界难点问题，提出数据中心电气架构相关难点问题交织情况的解决需要综合思考，从而找到最佳的技术路线及解决方案。

关键词：数据中心；中性点；接地方式；“断零”；杂散电流；四极开关；可靠性；综合思考

中图分类号：TU852                 　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2023.01.006