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旋转变压器的设计特点
引用本文:辛小南,贾生平. 旋转变压器的设计特点[J]. 郑州大学学报(工学版), 1999, 20(4): 44-47
作者姓名:辛小南  贾生平
作者单位:1. 郑州工业大学电气信息工程学院,河南,郑州,450002
2. 平顶山炼焦化学工业,集团,有限公司,河南平顶山,467021
摘    要:由于旋转变压器的输出电压与转速无关,且无电刷和滑环,故适用于可控硅调速的同步电动机的励磁系统.利用电路分析和磁路分析的方法,分析了旋转变压器的结构特点,推导出当定子铁心和转子铁心表面对轴心的夹角满足一定的条件,即可保证旋转变压器旋转时的磁阻不变;当气隙比k = 2 时,三相电压对称.

关 键 词:变压器  磁通  励磁电流
文章编号:1007-6492(1999)04-0044-04
修稿时间:1999-02-28

Characteristics of Design of Revolving - transformer
XIN Xiao-nan ,JIA Sheng-ping. Characteristics of Design of Revolving - transformer[J]. Journal of Zhengzhou University: Eng Sci, 1999, 20(4): 44-47
Authors:XIN Xiao-nan   JIA Sheng-ping
Affiliation:XIN Xiao-nan 1,JIA Sheng-ping 2
Abstract:The revolving-transform is suitable for exciting system of speed-changeable synchronous motors by conversing frequency because the output voltage of revolving-transformer has nothing to do with the motor's speed and it has no brush and sliding ring.This paper presents the designing characteristics of revolving-transformer with circuit analysis and magnetic flux analysis.It draws a conclusion that when the angle of the stator core surface to axle center or of the rotor core surface to axle center satisfies certain condition it is sure that the flux resistance of the revolving transformer does not change and when the air-gap rate k =2,the three-phase voltages are symmetrical.
Keywords:transformer  magnetic flux  exciting-current  
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