【摘要】 对交流发电机内腔体积基本确定后的激磁系统进行了设计，对激磁绕组的各个技术参数进行了精确计算，并推导出了磁轭外径与激磁绕组的最大外径之比约０．６１８的最佳值更多还原

【Abstract】 This paper discusses the principle of three brush wiper moter working at high speed,deduces a formula of induction electric potential and electromagnetic moment,probes into the effect of armature reaction on motor function.The bigger the angle of brush rocker in three brush wiper moter is,the bigger its rate of runway speed at hight speed to low is,and the softer mechanical character is.According to practical demand,design example of the three brush is given.更多还原