Electricity for Refrigeration, Heating, and Air Conditioning
9th Edition
ISBN: 9781285179988
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 11, Problem 3RQ
What is the major difference between a magnetic starter and a contactor?
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What happens when the low-voltage current flow in the coil primary winding is interrupted by the switching device?
The primary winding delivers a high-voltage spark to the plugs.
The magnetic field in the coil primary builds.
The secondary voltage drops to zero volts.
High voltage is induced in the secondary windin
State four advantages of a pre-engaged starter when compared with an inertia type.
Which of the following is not part of the starter motor circuit?
Chapter 11 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- A push button manual starter has tripped on overload. Explain how to reset the starter so themotor can be restarted.arrow_forwardExplain how to set the neutral plane position by using the compensating winding.arrow_forwardIs the resistance in the start winding greater or less than the resistance in the run winding?arrow_forward
- What type of armature winding is generally used for machines designed to operate on low voltage and high current?arrow_forwardTo answer the following questions refer to the circuit in Figure 416. When the pressure switch closes, which starter will energize first, 1M or 2M? Explain your answer.arrow_forwardWhat is the advantage of the capacitor-start induction-run motor over the resistance-start induction-run motor?arrow_forward
- What type of single-phase motor develops the highest starting torque?arrow_forwardRefer to Figure 211 to answer the following questions. How much voltage will be applied to coil 1CR when it is energized?arrow_forwardName two requirements that must be met before a motor can be used for wye-delta starting.arrow_forward
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