电力变压器承受短路能力的比较研究(下)  

Comparative Study on Ability to Withstand Short Cricuit of Power Transformer(Ⅱ)

作　　者：刘军[1] 张安红[1] 

机构地区：[1]杭州钱江电气集团股份有限公司,浙江杭州311243

出　　处：《变压器》2015年第4期41-44,共4页Transformer

摘　　要：以110k V、220k V电力变压器为例,给出了突发短路试验的评估方法及校核计算公式,利用漏磁场软件计算了绕组短路电磁力及应力,为对比验证在运变压器短路能力提供了依据。Based on the example of 110 k V and 220 k V power transformers in short circuit test, The estimation method and the verification formula are presented. The short circuit electromagnetic force and stress of windings are calculated with leakage flux software.The comparative results of the ability to withstand short circuit of transformers in operation are given.

关 键 词：电力变压器 短路电流 电磁力 应力 

分 类 号：TM41[电气工程—电器]