Exam 18: Single-Phase Motors
Exam 1: Introduction to Alternating Current15 Questions
Exam 2: Alternating-Current Circuits Containing Resistance15 Questions
Exam 3: Inductance in Alternating-Current Circuits15 Questions
Exam 4: Series Circuitsresistance and Impedance15 Questions
Exam 5: Capacitors and Rc Time Constants15 Questions
Exam 6: Capacitors in Alternating-Current Circuits15 Questions
Exam 7: Series Circuits: Resistance, Inductive Reactance, and Capacitive Reactance15 Questions
Exam 8: Ac Parallel Circuits15 Questions
Exam 9: Seriesparallel Circuits15 Questions
Exam 10: Three-Phase Systems15 Questions
Exam 11: Ac Instruments and Meters15 Questions
Exam 12: Alternating-Current Generators15 Questions
Exam 13: Transformers15 Questions
Exam 14: Transformer Connections for Three-Phase Circuits15 Questions
Exam 15: Special Transformer Applications15 Questions
Exam 16: Three-Phase Induction Motors15 Questions
Exam 17: The Synchronous Motor15 Questions
Exam 18: Single-Phase Motors15 Questions
Exam 19: Control Circuits15 Questions
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What are the two main types of single-phase induction motors?
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There are two main types of single-phase induction motors: the resistance-start, induction-run motor and the capacitor-start, induction-run motor.
When stepping motors are used as two-phase synchronous motors, they have the ability to virtually start, stop, or reverse direction of rotation instantly.
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What is the theory of operation for stepping motors?
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Stepping motors operate on the theory that like magnetic poles repel and unlike magnetic poles attract.
A(n) ____________________ network can be used to provide the 90° phase shift needed to change single-phase ac into two-phase ac.
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As the current in the stator circuit increases, the stator ____________________ also increases.
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Stepping motors are devices that convert mechanical movement into electrical impulses.
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The term ____________________ means that there are two windings wound together.
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The rotor of the resistance-start, induction-run motor is the same as that of a three-phase, squirrel-cage induction motor.
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In the ____________________ method, an additional compensating winding is placed in slots cut in the pole faces.
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Universal motors operate at different speeds on dc and single-phase ac.
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A repulsion-induction motor has nearly the same operating characteristics as a repulsion-start, induction-run motor, but this type of motor has no ____________________ mechanism.
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