Applications of Universal Motors
The universal motor has the sharply drooping torque- speed characteristic of a dc
series motor, so it is not suitable for constant-speed applications. However, it is
compact and gives more torque per ampere than any other single-phase motor. It
is therefore used where light weight and high torq ue are important.
Typical applications for this motor are vacu um cleaners, dri lls, similar
portable tools, and kitchen appliances.