大型变压器线圈短路电磁力的数值计算  

The Numerical Calculation of Short-Circuit Electromagnetic Force for Large Transformer Windings

作　　者：田立坚[1] 岳军[2] 张瑛[2] 

机构地区：[1]沈阳工业大学,110023 [2]沈阳电力高等专科学校,110036

出　　处：《东北电力技术》2000年第2期3-5,共3页Northeast Electric Power Technology

摘　　要：本文将有限元方法用于大型电力变压器突发短路时瞬态电磁场计算，推导了轴对称非线性瞬态涡流场的有限元计算公式。针对一台 ２４０ ０００ ｋＶＡ电力变压器线圈短路电磁力进行了计算分析，得出了电磁力的分布曲线和瞬变规律。The finite - element method is used in this paper for the calculation of transient electromagnetic field during the sudden short circuit of a large power transformer. Focusing the short - circuit electromagnetic force of the windings of a 240, 000kVA transformer, the calculation and analysis are carried out, the distribution curve and transient rule are obtained.

关 键 词：电力变压器 线圈电磁力 有限元方法 短路 计算 

分 类 号：TM410.2[电气工程—电器]