冯志文（陕西省建筑设计研究院有限责任公司，西安市　710003）

李建云（天津泰达电力公司，天津市　300457）

 

Selection of the Grounding Conductor Cross Section of Neutral Point at

Transformer Low-voltage Side

Qian Zhongyang（Beijing Branch, CSCEC AECOM Consultants Co., Ltd., Beijing 100037，China）

Feng Zhiwen（Shaanxi Architectural Design & Research Institute Co.，Ltd., Xi’an 710003，China）

Li Jianyun（Tianjin TEDA Electric Power Company，Tianjin 300547，China）

 

Abstract Based on analysis of the present documentation and combined with calculation example, grounding conductor cross section of neutral point at low-voltage side of transformer 10 / 0 . 4 kV is validated, and some issues to which attention shall be paid during selecting cross section are discussed.

Key words　Neutral point grounding Single-phase short circuit Selection of cross section Validation

 

摘　要　通过对现有文献资料的分析研究，配以计算实例，对　10　/　0 . 4　kV　变压器低压侧中性点接地导体截面进行校验，并对截面选择应注意的一些问题进行了探讨。

关键词　中性点接地　单相短路　截面选择　校验