Discussion
A cumulatively compounded dc motor has a characteristic that lies
Answer: C
Correct answer: between those of the shunt and the series machine
A cumulative compound machine has a shunt field that fixes the no-load speed and a series field that strengthens the flux as load comes on. It therefore has a better starting torque than a shunt machine and a greater speed droop, but it will not run away on no load as a series machine does, because the shunt field holds the flux up. The result is a characteristic lying between the two, which suits presses, shears and rolling mills.
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