So from what I can see based on stuff published online:
Series wound motors:
- Are not good for variable speed applications
- Can achieve very high starting torque
- Speed is almost entirely dependent on load
- Are great for variable speed applications
- Have lower starting torque
- Can maintain speeds, to some degree, under varying loads
For a short shunt motor, the series field comes first, then the armature and shunt field come after it. For a long shunt motor, the shunt field is in parallel to the series field and armature.
My question is: How do long-shunt compound wound motors compare to (straight) shunt motors in terms of speed control characteristics? Assuming that the shunt field is larger than the series field, can a long shunt motor work well in a variable speed/torque application?