LI De-jia1, WANG Wei-jian2, BI Da-qiang2. Analysis of Transient Saturation and Sympathetic Inrush of Transformers[J]. High voltageapparatus, 2005, (1): 12-15.
LI De-jia1, WANG Wei-jian2, BI Da-qiang2. Analysis of Transient Saturation and Sympathetic Inrush of Transformers[J]. High voltageapparatus, 2005, (1): 12-15.DOI:
变压器暂态饱和与和应涌流实例分析
摘要
通过一现场具体实例
探讨了和应涌流产生的机理及和应涌流与变压器暂态饱和的关系
分析了三相变压器励磁涌流波形、和应涌流波形与变压器暂态饱和的特征
探讨了和应涌流与变压器的暂态饱和对变压器差动保护的影响
提出了防止变压器差动保护误动的新方法。
Abstract
By analyzing a case in practice
this paper discusses the mechanism of sympathetic inrush and the relationship between sympathetic inrush and transient saturation in transformer. The characteristics of initial inrush current waveform
sympathetic inrush waveform and transient saturation of a three-phase transformer are analyzed. By studying the effects of sympathetic inrush and transient saturation on the differential protection of transformer
a new method is proposed to prevent the differential protection from mal-operation.