110kV电力变压器绕组短路强度的计算与评估  

Calculation and Evaluation of Short-Circuit Strength for Power 110kV Transformer Winding

作　　者：敖志宁 孟天男 井永腾[1] 李岩[1] 邹德旭 AO Zhi-ning;MENG Tian-nan;JING Yong-teng;LI Yan;ZOU De-xu(National Engineering Research Center for REPM Electrical Machines,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学国家稀土永磁电机工程技术中心,辽宁沈阳110870

出　　处：《变压器》2021年第5期18-22,共5页Transformer

摘　　要：以一台40000k VA电力变压器为研究对象,建立了三维模型,对三相短路工况下电磁力进行计算,对绕组在遭受短路冲击下各线饼的位移及应力变化过程进行了瞬态动力学分析。Taking a 40000 k VA power transformer as the research object, a three-dimensional model is established. The electromagnetic force of the transformer under three-phase short-circuit conditions is calculated. Transient dynamic analysis of the displacement and stress variation of each disc in transformer windings under short-circuit impact is carried out.

关 键 词：电力变压器 有限元 短路强度评估 

分 类 号：TM401[电气工程—电器]