再论变电所的接地和杂散电流来源于: 发表时间:2011-04-01 13:04 编辑:fzy
王厚余(中国航空规划建设发展有限公司,北京市 100011)
Further Discussion on Grounding and Stray Current in Substation
Wang Houyu(China Aviation Planning and Construction Development Co.,Ltd.,Beijing 100011,China)
Abstract This paper states that the main purpose of performing one -point grounding in the low -voltage distribution cabinet of substation in accordance with IEC standards is to prevent the stray current from forming stray electromagnetic field that will disturb the normal operation of the vital information system. It illustrates the existence of stray electromagnetic field and its hazards,and brings forward opinions on the meaning of neutral point and neutral conductor in building electricity.
Key words Grounding in substation Stray current Stray electromagnetic field Neutral point Neutral conductor Anti -electromagnetic interference