内蒙古电力技术2015，Vol.33Issue(3)：89-91,95,4.DOI:10.3969/j.issn.1008-6218.2015.03.016
发电厂主变压器直流偏磁原因分析
Cause Analysis of Direct Current Magnetic Bias of 500 kV Main Transformer in Power Plant
车传强 1郭金刚 2杨东其3
作者信息
- 1. 内蒙古电力科学研究院,呼和浩特 010020
- 2. 国网内蒙古东部电力有限公司电力科学研究院,呼和浩特 010020
- 3. 呼和浩特供电局,呼和浩特 010050
- 折叠
摘要
Abstract
In a region of Inner Mongolia, ± 500 kV dc transmission line under the condition of monopole operation mode and taking the earth as a loop, DC magnetic bias occured in main transformer 2 in near E power plant. The test to Dc current, noise and vibration of the main transformer 2 showed that the DC current in transformer neutral point, noise and vibration exceeded the standard requirements, which has disadvantageous affect on the normal operation of transformer. As well as technical and economic aspects of the various solutions DC bias of schemes are compared, it is recommended blocking capacitor method for two main transformer neutral point for technological innovation, to ensure the safe and stable operation of the transformer.关键词
直流输电线路/主变压器/直流偏磁/电容隔直法/变压器中性点Key words
direct current transmission line/main transformer/DC Bias/Capacitance separation method/transformer neutral point分类
信息技术与安全科学引用本文复制引用
车传强,郭金刚,杨东其..发电厂主变压器直流偏磁原因分析[J].内蒙古电力技术,2015,33(3):89-91,95,4.
