广东电力2017，Vol.30Issue(1)：98-102,5.DOI:10.3969/j.issn.1007-290X.2017.01.019
500kV曲江变电站2号主变压器低压侧三相对地电压不平衡的原因分析
Reason Analysis for Unbalance of Three-phase Voltage to Earth of No.2 Main Transformer Low Voltage Side in Qujiang Substation
徐兴发 1金滇黔1
作者信息
- 1. 广东电网有限责任公司韶关供电局,广东韶关512026
- 折叠
摘要
Abstract
Investigation is carried out in allusion to unbalance of three-phase voltage to earth at 35 kV low voltage side of No.2 main transformer in Qujiang substation.By establishing a theoretical analysis model and combining actual structure and measured data of the transformer,this paper calculates and analyzes reasons for causing unbalance of three-phase voltage to earth,and determines that causes are unbalance of equivalent capacitance to earth of 35 kV 2M bus and associated equipment,capacitance between transformer winding and winding ground capacitance.关键词
主变压器/电压不平衡/电容Key words
main transformer/voltage unbalance/capacitance分类
信息技术与安全科学引用本文复制引用
徐兴发,金滇黔..500kV曲江变电站2号主变压器低压侧三相对地电压不平衡的原因分析[J].广东电力,2017,30(1):98-102,5.
