变压器和应涌流的产生机理及其影响因素研究

Principle and Influencing Factors of the Transformer Sympathetic Inrush

在等效电路的基础上,从磁通变化的角度出发,分析了单台变压器励磁涌流的衰减机理,并 给出相应的关系式;然后深入研究了变压器和应涌流的产生机理及其变化特点。最后,对系统等效 电阻、并联与串联以及运行变压器负载对和应涌流的影响进行了初步的分析。

The phenomenon of sympathetic interaction between transformers is very likely to occur when a transformer is energized onto a system to which other transformers are already connected. Based on the transformer equivalent circuit and the flux variation, the attenuation principle of the single transformer's inrush current is analyzed and the corresponding formula is obtained. Then the principle and characteristics of sympathetic inrush are studied. Finally, the influencing factors are investigated such as system resistance, parallel or series transformers and the load of a connected transformer.