钢轨打磨车隔离变压器铁心选材分析  

Material Selection Analysis of Rail Grinding Train Isolation Transformer Core

作　　者：陈湘令[1] 黄细友 CHEN Xiangling;HUANG Xiyou(Hunan Railway Professional Technology College,Zhuzhou,Hunan 412001,China;CRRC Zhuzhou Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]湖南铁道职业技术学院,湖南株洲412001 [2]中车株洲电机有限公司,湖南株洲412001

出　　处：《机车电传动》2019年第6期100-102,共3页Electric Drive for Locomotives

摘　　要：根据双动力钢轨打磨车打磨电机的供电系统电路,提出了供电电源对隔离变压器铁心选材的要求。通过实测30Q130 硅钢片在120 Hz 频率下,磁密为 1.2 T,1.3 T,1.4 T时的损耗值,分析了铁心损耗与磁密的关系。根据30Q130,23JGH100和B20R070等硅钢片的铁心损耗曲线,分析计算了采用3种不同硅钢片时的铁心表面温升。通过比较3种铁心材料的磁密、损耗与温升数值,确定了隔离变压器的铁心材料和磁密。According to the circuit of power supply system for grinding motor of double power rail grinding train,the requirement of selecting material for isolating transformer core was put forward.The relationship between core loss and magnetic density was analyzed by measuring the loss values of 30Q130 silicon steel sheet with magnetic density of 1.2 T,1.3 T and 1.4 T at 120 Hz frequency.Based on core loss curves of 30Q130 silicon steel sheet,23JGH100 silicon steel sheet and B20R070 silicon steel sheet,the surface temperature rise of iron core when three kinds of silicon steel sheet were used is analyzed and calculated.By comparing the values of magnetic density,loss and temperature rise of three kinds of core materials,the core materials and magnetic density of isolating transformer were determined.

关 键 词：隔离变压器 磁通密度 温升 铁心损耗 硅钢片 

分 类 号：U216.65[交通运输工程—道路与铁道工程] TM275[一般工业技术—材料科学与工程]