一种短路电动力分析及预防

The Analysis and Prevention of a Sort of Short Circuit Electric Dynamic Power

电力变压器运行过程中 ,短路事故是难以避免的 ,它将带来严重的经济损失 ,为提高短路变压器的抗短路能力 ,从分析变压器绕组产生的电磁力入手 ,探讨了设计、工艺、结构与装配等方面要考虑的问题 。

Short circuit process is a transient process.On the one hand,the temperature increase gives rise to both expansion of windings and reduction of the elastic modules of windings.In order to strengthen the ability to withstand short-circuit of transformer,some problems ,which need to be considered in design,technology,structure and assembly,etc.of transformer,were discussed through the analysis of electromagnetic force generated in windings of transformer.Corresponding proposals for materal were presented.