Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 3SQ
To determine
Explain the reason for not including armature and crossbar or the over-load reset
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
List the probable causes if the armature dos notable release after the magnetic starter is de - energized .
Industrial Motor Controls
8.a. A typical motor speed control circuit that is controlled by an analog current loop will have a current ofA. 4-20 mA.B. 2-20 mA.C. 5-50 mA.D. 0-10 mA.8.b. Which one of the following statements is true of a disabled contact or coil?A. The disabled element has been automatically disabled due to module failure.B. The disabled element is held false by the PLC.C. A disabled contact or coil is caused by a faulty memory location in the PLC.D. A contact must be in the disabled state before it can be forced ON or OFF.
Explain with the aid of a drawing or hand sketch how a bimetallic overload relay operates?
Chapter 5 Solutions
Electric Motor Control
Ch. 5 - In which diagram do the physical locations of the...Ch. 5 - Which diagram conveys as much information as...Ch. 5 - Prob. 3SQCh. 5 - Which control wiring scheme can cause damage to...Ch. 5 - In developing line or wiring diagrams, in which...Ch. 5 - In which control circuit wire are the overload...Ch. 5 - The control circuit is connected to which lines...Ch. 5 - Prob. 8SQCh. 5 - The contactor coil is connected to which line of a...Ch. 5 - What does the X or 1 mean on a target table?
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The figure below shows the closed loop position control block diagram of a spring mass damper system. Based on this figure , answer the following questions (13-21) 13. Block number 3 represents.. . function * ...transfer 6 20s+50 2 2s $2+8s+4 (4) (5) (1) (2) (3) 10 Position Sensor Controller Process O Actuatorarrow_forwardWhat are typical uses for control relaysarrow_forwardAdvance Motor Control 1. Why are contacts often disconnected in series when controlling small motors 2. Why are clapper type contactors generally used to control DC device 3. What is the purpose of FCR (field current relay)arrow_forward
- How does an intermediate switch work?arrow_forwardexplain open loop control system and closed loop control systemarrow_forward6.a. Arcing in manual starters is eliminated by the use ofA. overload relays.B. nonconductive contacts.C. blowout coils.D. spring-loaded handles.6.b. Chattering of AC contactors is prevented byA. blowout coils.B. air gaps.C. secondary windings.D. shading poles.arrow_forward
- Which of the following is incorrect for a close loop system ? a. Automatic Control system b. Use feedback element c. No comparison element d. Have feedbackarrow_forwardWhat is synchro? Explain how it is controlled with respect to control systemarrow_forwardHow does a clamper circuit perform clamping action?arrow_forward
- 1. It is a machine that converts mechanical energy to electrical energy. 2. It is a machine that converts electrical energy to mechanical energy. 3. It is cylindrical or drum-shaped where the coils are placed and can either be lap wounded or wave wounded. 4. It connects the commutator to the other parts of the DC machine. 5. It serves as the housing of the dc machine. 6. True or False: The shunt field winding is part of the armature. 7. True or False: The long shunt compound generator is when the armature is in series with the series field winding and parallel to the shunt field winding. 8-10. Your newly built house needs an elevator. Which from the following will be best to use- series, shunt or compound motor and why?arrow_forward20.a. A capacitive sensor is used to detect the presence of _______ objects.A. ferrousB. nonmovingC. nonconductiveD. magnetic20.b. A three-phase motor can be made to run backwards byA. connecting a resistor in series with the armature.B. reversing the control voltage connections.C. reversing three of its power leads.D. reversing two of its power leads.arrow_forward2. Assume that when the START button is pressed M starter does not energize. List seven possible causes for this problem.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning