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Motors ch 19

Special Application Motors

QuestionAnswer
No pictures. Don't Worry About Math on Test
1. A ___ universal motor has extra windings added to the field poles to reduce sparking compensated
2. Universal motors operate on the same principles as ___ motors DC series
3. A ___ motor is an AC motor that uses induction to create linear movement linear induction
4. Both reversing and nonreversing universal motors have two power leads and a ground wire coming out of the motor. True or False True
5. A rotary phase converter is a 3-phase power source consisting of a standard 3-phase induction motor, which is energized by another 3-phase power source. True or False False powered by single phase
6. A rotary phase converter should be sized for at least ___ times the motor horsepower if the motor is to be started under load. 1.5
7. A ___ motor uses voltage and current pulses to control rotor movement and position. stepper
8. A ___ drive uses feedback from an encoder mounted on the motor or load, along with a closed-loop control system. servomotor
9. ___ are often used in residential applications and portable hand tools. Universal motors
10. The main parts of a universal motor are the field windings and the ___ armature
11. Linear motors have low maintenance costs because there are no contacting parts. True or False True
12. Most stepper motors used in industrial applications have ___ steps per revolution. 200 to 500
13. A common design for stepper motors has 50 teeth on the inside of the stator and outside of the rotor. True or False True
14 ___ rely on electric commutation (pulses) to provide motion control. Stepper motor
15. Single-step profile mode and ___ profile mode are two modes of stepper motion control. continous
16. Microstepping is stepper motor control that multiplies the standard stepper control pulse intervals into larger intervals to increase the resolution of a stepper motor system. True or False False
17. A ___ can be reversed by changing the order in whih the control switches are opened and closed stepper motor
18. ___ is the predictable path of speed and position changes of a load caused by a stepper motor. Trajectory control
19. ___ are used for motion control of reciprocal-motion machines, people movers, and monorail trains. Linear-induction motors
Created by: JoshHampton
 

 



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