Question

A cumulatively compounded motor does not run at dangerous speed at light loads because of the presence of compensating winding interpoles

Answer 1

In DC machine One way to reduce the effects of armature reaction is to place small auxiliary poles called "interpoles" between the main field poles. in Generators the interpoles have a few turns of large wire and are connected in series with the armature. Interpoles are wound and placed so that each interpole has the same magnetic polarity as the main pole ahead of it, in the direction of rotation.