Glossary of Motor Terms
Sinusoidal voltage
Voltages that can be expressed by cosωt, sinωt, or their total, the difference between them or the total of them multiplied together, are sinusoidal waves as seen in (a). Sinusoidal voltages are those ideally suited to being applied to the windings of an AC or brushless DC motor. However, the counter electromotive force (CEMF, back-emf) is not always sinusoidal and often includes higher harmonics, mainly the 5th, as shown in (b)
Term List (S)
- Salient-pole torque
- Salient-pole rotor-stator
- Sensorless drive
- Separately-excited DC motor
- Shaft, shapes of
- Simulation
- Sinusoidal voltage
- Skew，Skewed slots
- Slip ring
- Slot liner
- Slotless rotor
- Slot-pole combination
- Slots and teeth
- Small electrical motor
- Solenoid
- Space factor, Slot fill factor
- Speed control
- Speed variation rate
- Spindle motor
- Squirrel cage rotor
- Squirrel-cage induction motor
- Stall torque
- Starting torque
- Sturgeon's motor
- Switched reluctance motor
- Switched reluctance motor, Early
- Switching elements
- Synchronous speed
