1. Part winding motors are different in construction from standard squirrel cage motors.
a. True
b. False
2. Part winding motor windings are intended to operate in series.
a. True
b. False
3. Part winding starters are designed to be used with squirrel cage motors having two separate and parallel stator
windings.
a. True
b. False
4. Part winding starting has many applications in air-conditioning systems.
a. True
b. False
5. Part winding starters can be used in as many applications as other, more expensive types of reduced voltage
starters.
a. True
b. False
Name: Class: Date:
Unit 28 Part Winding Motor Starters
6. In the part winding motor, the stator windings may be ____ connected or delta connected, depending on the motor
design.
a. A b. M
c. Y d. Z
7. Part winding starters are not suitable for use with delta-wound, ____ motors.
a. single-voltage b. single-phase
c. dual-voltage d. dual-purpose
8. One disadvantage of the two-step part winding starter is that ____.
a. it provides closed transition starting
b. it is almost always an incremental start device
c. it uses only half-size contactors
d. it requires additional voltage reducing elements
9. The thermal capacity of the motor limits the length of acceleration on the first winding to approximately ____
seconds, depending on the connected load.
a. 5 b. 15
c. 25 d. 45
10. When selecting heater elements for the overload relays, the electrician should remember that each of the relays
carries only ____ of the motor current.
a. a fifth b. a quarter
c. a third d. half
Name: Class: Date:
Unit 28 Part Winding Motor Starters