一种新的变压器励磁涌流抑制技术

在探讨变压器励磁涌流的产生原理及其影响因素的基础上．分析现有励磁涌流抑制技术的优缺点．提出了一种抑制变压器励磁涌流的新技术．该技术将选相位关合法和串联电阻法相结合，考虑了剩磁的影响．在应用选相位关合法的基础上，通过设置适当的电阻及其切除时间来进一步降低励磁涌流．仿真实验表明．该技术能有效降低变压器空载合闸时的励磁涌流．

A New Restraint Technique of Transformer Inrush Current

A new restraint technique of transformer inrush current is proposed based on studying the generation mechanism and influence factors of transformer inrush current and comparing the advantage and disadvantage of technologies existed now. Considering the influence of residual flux and applying controlled closing technology, transformer inrush current is reduced by combing controlled closing technology and series resistance, setting proper resistance and cut time. The simulation results show that the technology could reduce the closing inrush current of transformer effectively.