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ELE 141

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ELE 141 Powered By Docstoc
					                  Des Moines Area Community College
                   Course Information – EFFECTIVE Aug. 2006

Acronym/Number                 ELE 141                         Historical Ref HTPC 368

Title                                    Advanced Motor Controls

Credit breakout 3                      2               2              0                     0
                     (credit         lecture           lab        practicum          work experience)

PREREQUISITE(S): ELT 303, ELT 134

COURSE DESCRIPTION:
During this course students will use electrical and mechanical components and how they are used to
control different types of motors. Various types of control circuits are illustrated and discussed.
Students learn theory and operation of AC and DC motors.

COURSE COMPETENCIES:
During this course, the student will be expected to:

1.      Electrical circuit layout, and symbols fundamentals review.
        1.1      Discuss the common symbols used in motor control diagrams.
        1.2      Analyze and illustrate symbols in various wiring diagrams.
        1.3      Analyze and illustrate wiring elementary diagrams.
        1.4      Discuss and illustrate various control devices.
        1.5      Analyze and illustrate differences between contactors, motor starters, and relays.
        1.6      Describe the operation of the common timing relays.
                 1.6.1       Determine the applications of several types of timing relays.
                 1.6.2       Analyze and illustrate on and off delay timing wiring symbols.
                 1.6.3       Draw simple circuit diagrams using timing relays.

2.      Identify and illustrate the construction, wiring, and installation of AC and DC industrial
        motors.
        2.1      Discuss the construction of three phase motors.
                 2.1.1       Determine the proper internal wiring of single voltage wye connected
                             three phase motors.
                 2.1.2       Determine the proper internal wiring of single voltage delta connected
                             three phase motors.
                 2.1.3       Determine the proper internal wiring of dual-voltage wye connected
                             three phase motors.
                 2.1.4       Determine the proper internal wiring of dual-voltage delta connected
                             three phase motors.
                 2.1.5       Analyze and illustrate the reversing of wye and delta connected three
                             phase motors.
        2.2      Discuss the construction of single-phase motors.
                                         ELE 141
             2.2.1     Determine the proper internal wiring for split phase motors.
             2.2.2     Determine the proper internal wiring for reversing split phase motors.
     2.3     Determine the proper internal wiring for capacitor motors.
             2.3.1     Discuss the internal wiring and operation of capacitor start motors.
             2.3.2     Discuss the internal wiring and operation of capacitor run motors.
             2.3.3     Analyze and illustrate the reversing of capacitor motors.
     2.4     Discuss the various types of DC motors.
             2.4.1     Discuss the construction, application and characteristics of DC series
                       motors.
             2.4.2     Discuss the construction, application and characteristics of DC shunt
                       motors.
             2.4.3     Discuss the construction, application and characteristics of DC
                       compound motors.
             2.4.4     Analyze and illustrate the reversing of DC motors.
     2.5     Analyze and illustrate the reversing of motors using manual starters.
             2.5.1     Illustrate the proper wiring sequence when reversing three phase motors
                       using manual starters.
             2.5.2     Illustrate the proper wiring sequence when reversing single phase motors
                       using manual starters.
             2.5.3     Illustrate the proper wiring sequence when reversing DC motors using
                       manual starters.
     2.6     Analyze and illustrate the reversing of motors using magnetic starters.
             2.6.1     Analyze and illustrate the difference of mechanical interlocking and
                       electrical interlocking.
     2.7     Discuss and illustrate the reversing of motors using motor drives.
             2.7.1     Review the programming sequences and functions of the interface
                       module.
     2.8     Discuss and illustrate techniques for troubleshooting reversing circuits.

3.   Discuss and analyze electrical power distribution systems.
     3.1     Discuss the various levels of distribution systems.
     3.2     Discuss the generator phase connections.
             3.2.1     Analyze wye connections.
             3.2.2     Analyze delta connections.
     3.3     Discuss the transformer theory of operation.
             3.3.1     Analyze the construction of various transformers.
             3.3.2     Analyze the voltages, currents and ratios of a step-up transformer.
             3.3.3     Analyze the voltages, currents and ratios of a step-down transformer.
     3.4     Discuss the various three phase transformer distribution systems.
             3.4.1     Analyze the wye and delta connected transformers.
             3.4.2     Analyze the wye to wye connected transformer.
             3.4.3     Analyze the delta to delta connected transformer.
     3.5     Discuss the installation of transformers.
     3.6     Discuss the layout and sections of the substation.
     3.7     Discuss the layout and operation of switchboards.
     3.8     Discuss the layout and operation of panelboards.
             3.8.1     Discuss the installation requirements for panelboards.
                                          ELE 141
     3.9     Discuss the layout and operation of motor control centers.
     3.10    Discuss the layout and operation of feeders and busways.
     3.11    Analyze and illustrate proper grounding techniques.
     3.12    Discuss and illustrate troubleshooting fuses and circuit breakers.

4.   Analyze and illustrate understanding of solid state control devices.
     4.1     Discuss semiconductor theory.
             4.1.1      Describe the basic construction of atoms.
     4.2     Discuss semiconductor doping theory.
             4.2.1      Analyze the construction of N-type material.
             4.2.2      Analyze the construction of P-type material.
     4.3     Analyze semiconductor devices.
             4.3.1      Describe the basic construction and operation of various diodes.
             4.3.2      Describe the basic construction and operation of various rectifications of
                        AC.
             4.3.3      Describe the basic construction and operation of various thermistors.
             4.3.4      Describe the basic construction and operation of various photo cells.
             4.3.5      Describe the basic construction and operation of various transistors.
             4.3.6      Describe the basic construction and operation of silicon controlled
                        rectifiers.
             4.3.7      Describe the basic construction and operation of triacs.
             4.3.8      Describe the basic construction and operation of diacs.
             4.3.9      Describe the basic construction and operation of various integrated
                        circuits.
             4.3.10     Describe the basic construction and operation of various 555 timer
                        circuits.
     4.4     Discuss and illustrate the troubleshooting techniques of solid state devices.
             4.4.1      Illustrate diode testing using multimeter.
             4.4.2      Illustrate testing photo cells using multimeter.
             4.4.3      Illustrate testing transistors using multimeter.
             4.4.4      Illustrate testing silicon controlled rectifiers using multimeter.
             4.4.5      Illustrate testing triacs using multimeter.
             4.4.6      Illustrate testing diacs using multimeter.

5.   Analyze construction and illustrate the operation of electromechanical and solid-state relays.
     5.1     Describe the basic construction and operation of various electromechanical relays.
     5.2     Describe the basic construction and operation of various general purpose relays.
     5.3     Describe the basic construction and operation of various machine control relays.
     5.4     Describe the basic construction and operation of various solid state relays.
     5.5     Discuss and illustrate various relay troubleshooting techniques.

6.   Analyze and illustrate proper installation and application of photoelectric and proximity
     controls.
     6.1      Discuss the various types of photoelectric switches.
     6.2      Discuss the various scanning techniques.
     6.3      Describe the different applications when installing photo switches.
     6.4      Discuss the various types of proximity switches.
                                           ELE 141
      6.5     Describe the different applications when installing proximity switches.
      6.6     Discuss and illustrate photoelectric switch troubleshooting techniques.
      6.7     Discuss and illustrate proximity switch troubleshooting techniques.

7.    Identify and illustrate the basic construction and operation of programmable logic
      controllers.
      7.1      Discuss the construction and sections of the programmable controller.
      7.2      Discuss the basic language used in PLC programming.
      7.3      Discuss the basics PLC communication networks.
      7.4      Discuss the basic PLC applications.
      7.5      Discuss and illustrate various troubleshooting techniques used with PLC.
      7.6      Discuss and illustrate troubleshooting the PLC.

8.    Analyze the operation methods for reduced voltage starting.
      8.1     Discuss the operation of reduced voltage starting.
      8.2     Discuss the load torque and starting requirements.
      8.3     Analyze and illustrate DC motor reduced voltage starting.
              8.3.1      Discuss and illustrate DC motor construction.
      8.4     Analyze and illustrate reduced voltage starting and squirrel-cage motors.
              8.4.1      Discuss and illustrate squirrel-cage motor construction.
              8.4.2      Analyze and illustrate AC motor operation.
              8.4.3      Analyze and calculate motor speed.
      8.5     Discuss and illustrate various reduced voltage starting troubleshooting techniques.

9.    Analyze and illustrate accelerating and decelerating methods.
      9.1     Discuss motor braking techniques.
              9.1.1      Analyze plugging switches and their operation.
              9.1.2      Analyze and illustrate various plugging diagrams.
      9.2     Analyze and illustrate the operation dynamic braking.
      9.3     Analyze and calculate speed control and the load requirements for AC and DC
              motors.
      9.4     Discuss and illustrate various speed control circuits.

10.   Identify and illustrate AC frequency motor drive set up.
      10.1     Discuss and illustrate motor stopping methods using frequency drive.
      10.2     Discuss and illustrate various types of acceleration and deceleration techniques
               using frequency drive.

11.   Analyze and illustrate troubleshooting techniques used for components and control devices.
      11.1    Analyze and illustrate testing procedures on industrial switches.
      11.2    Analyze and illustrate testing procedures on electric motors.
      11.3    Analyze and illustrate procedures for locating circuits in panelboards.
      11.4    Analyze and illustrate testing procedures on capacitors.
                                 ELE 141


COMPETENCIES REVIEWED AND APPROVED BY:

DATE: ________________________

FACULTY:
1.
2.
3.
4.
5.
6.




                                      Effective date:    August, 2005

                                      by:                Greg Bailey

                                      Campus:        A B C U N W OC

                                      extension:         1741

                                      Revision(s):

				
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