In addition, the field poles can be excited by two fieldwindings, a shunt field winding and a series field winding.
除此之外，励磁可以使用两种不同的励磁绕组：并励和串励。
2
The commutator motor includes a stator and an armature. The stator includes a stator iron core having the main poles and slots and the fieldwindings disposed in the slots.
The outstanding advantages of DC machines arise from the wide variety of operating characteristics which can be obtained by selection of the method of excitation of the fieldwindings.