四极串激起动机在汽车、拖拉机中获得了广泛应用。按照激磁绕组连接方式不同,可将这些四极串激起动机分作两类:一类是完全串联起动机,所有激磁绕组串联后再和电枢串联,如2201、315B等起动机,线路连接如图1所示。另一类是四个激磁绕组串并混联后再和电枢串联,即串并混联起动机,如321、QDl24F、ST614等起动机,其线路连接如图2所示。 Quadruple sparks motivation in the car, tractor has been widely used. In accordance with the different excitation winding connection, these four-pole series can be divided into two types of excitement motivation: one is the complete series starter, all the excitation windings in series and then armature in series, such as 2201, 315B and other starters, line connections As shown in Figure 1. The other is the series of four excitation windings and then in series with the armature in series, that is, series and hybrid starter, such as 321, QDl24F, ST614 and other starters, the line connection shown in Figure 2.