KERN COMMUNITY COLLEGE DISTRICT – CERRO COSO COLLEGE

RET C211 COURSE OUTLINE OF RECORD

  1. DISCIPLINE AND COURSE NUMBER:
    RET C211
  2. COURSE TITLE:
    Principles of Transformers, Motors, Generators, and Controls
  3. SHORT BANWEB TITLE:
    Prin of Transformers
  4. COURSE AUTHOR:
    Buxamusa, Adnan
  5. COURSE SEATS:
    -
  6. COURSE TERMS:
    70 = Fall; 30 = Spring; 50 = Summer
  7. CROSS-LISTED COURSES:
  8. PROPOSAL TYPE:
    CC New Course
  9. START TERM:
    70 = Fall, 2012
  10. C-ID:
    N
  11. CATALOG COURSE DESCRIPTION:
    This course provides students with principles of electromagnetic energy conversion as applicable to transformers and AC/DC motors and generators, with emphasis on those used in the wind energy industry and with a view toward safety. Students learn characteristics and applications of each type of motor and generator. Students also gain an understanding of concepts of controlling the motor or generator in an industrial system, such as wind turbine generators. Topics also include single and three phase units and connectivity. Students obtain hands-on experience wiring and controlling motors and generators, some basic troubleshooting skills, and safe practices.

  12. GRADING METHOD

    Default:
    S = Standard Letter Grade
    Optional:
    A = Audit;P = Pass/No Pass
  13. TOTAL UNITS:
    3

  14. INSTRUCTIONAL METHODS / UNITS & HOURS:

    Method
    Min Units
    Min Hours
    Lecture
    2
    36
    Lab
    1
    54
    Activity
    0
    0
    Open Entry/Open Exit
    0
    0
    Volunteer Work Experience
    0
    0
    Paid Work Experience
    0
    0
    Non Standard
    0
    0
    Non-Standard Hours Justification:

  15. REPEATABILITY

    Type:
    Non-Repeatable Credit
  16. MATERIALS FEE:
    No
  17. CREDIT BY EXAM:
    No
  18. CORE MISSION APPLICABILITY:
    Associate Degree Applicable (AA/AS);Certificate of Achievement (COA);Career Technical Education (CTE)
  19. STAND-ALONE:
    No

  20. PROGRAM APPLICABILITY

    Required:
    Renewable Energy Technology (AS Degree Program)
    Renewable Energy Technology - Entry Level Wind Energy Technician (Certificate of Achievement)
    Elective:

  21. GENERAL EDUCATION APPLICABILITY

    Local:
    IGETC:
    CSU:
    UC Transfer Course:
    CSU Transfer Course:

  22. STUDENT LEARNING OUTCOMES Upon completion of the course, the student will be able to

    1. Describe the workings of and compare the differences among the motor, generator, and alternator and the different types of each found in the renewable energy industry.
    2. Identify correct wiring to a motor and explain its start/stop operation.
    3. Explain how transformers are used in the renewable energy industry.
    4. Identify primary and secondary windings on industrial transformers and their connections.
    5. Explain torque and mechanical advantage.
    6. Explain the difference between single and three phase circuits and where they may be used.

  23. REQUISITES

    Prerequisite:

    RET C101
    and
    RET C115
    and
    INSF C070

  24. DETAILED TOPICAL OUTLINE:

    Lecture:

    A.  Electromagnetism
            1.  Magnetism and lines of force
            2.  Magnetic flux
            3.  Link between electricity and magnetism
            4.  Right hand rule for Electromotive Force (EMF)
            5.  Magnetic induction

    B.  Direct and alternating currents — Brief review with emphasis on safety
            1.  The difference between voltage and current
            2.  What is Direct Current (DC)
            3.  What is Alternating Current (AC)
            4.  Differences between 1Ø, 2Ø, 3Ø AC
            5.  Safety around energized DC and AC circuits

    C.  Generation of DC and AC voltages
            1.  Generation of DC
            2.  Generation of single phase AC
            3.  Generation of 3Ø AC

    D.  Transformers
            1.  Principles of operation [primary and secondary windings]
            2.  Electrical isolation and grounding
            3.  Isolation transformer
            4.  Autotransformer
            5.  Step-up transformer
            6.  Step-down transformer

    E.  Conversion of AC to DC and vice versa
            1.  Rectification (AC to DC conversion)
            2.  What is a switcher power supply
            3.  What is an inverter
            4.      Converting AC to DC and back to AC using switchers and inverters
            5.  Other methods of AC to DC conversion and vice versa

    F.  Generators and alternators
            1.  Principles of operation
            2.  DC generators
            3.  Single phase alternators
            4.  3Ø alternators
            5.  Asynchronous generators
            6,  Brushless wound-rotor doubly-fed generators
            7.  Applications

    G.  Motors
            1.  Principles of operation
            2.  DC motors
            3.  Single phase AC induction motors
            4.  3Ø AC induction motors
            5.  Overview of start/stop controls

    H.  Basics of control circuitry for industrial rotating machines
            1.  SCR inverter circuit for AC induction motor
            2.  Torque versus slip profile for operating AC motors and generators

    Lab:

    A.      Safety — A re-iteration
                1. Proper test equipment selection and usage
                2. Proper personal protective equipment (PPE) selection and usage
                3. Safe operating procedures (SOPs)

    B.      DC Circuit Measurements
                1. Resistive loads
                2. Reactive loads

    C.      AC Circuit Measurements
                1. Resistive loads
                2. Reactive loads
                3. Power Factor

    D.      Transformers
                1. Primary winding identification and measurements of electrical input parameters
                2. Secondary winding identification and measurements of electrical output parameters

    E.      Motor and generator operation
                1. Wiring and controls
                2. Identifying shorts and opens

  25. METHODS OF INSTRUCTION--Course instructional methods may include but are not limited to

    1. Audiovisual;
    2. Demonstration;
    3. Discussion;
    4. Group Work;
    5. In-class writing;
    6. Instruction through examination or quizzing;
    7. Lecture;
    8. Library;
    9. Outside reading;
    10. Peer analysis, critique & feedback;
    11. Peer-to-peer instruction;
    12. Problem Solving;
    13. Project-based learning;
    14. Skills Development and Performance;

  26. OUT OF CLASS ASSIGNMENTS: Out of class assignments may include but are not limited to

    • Study personal notes taken during classroom lecture. • Study classroom handouts and textbook material covered in class. • Review on-line videos on topics covered in class. For example, review video and associated explanation on how motors work at http://www.animations.physics.unsw.edu.au/jw/electricmotors.html#schematics . • Research difference between generator and an alternator as individual (non-group) assignment and present in class. • Research varios type of high-power transformers and present finding to class.

  27. METHODS OF EVALUATION: Assessment of student performance may include but is not limited to

    • Class discussion (Be active listener and participant in discussing lecture topics as needed for best learning comprehension. This includes discussion of assigned reviews of on-line and handout materials given as "out-of-class assignments.")
    • Quizzes on topics covered in class &/or assigned study topics and homework.
    • Projects. For example, wire a transformer as a step-up transformer and verify the voltage and current ratios of the primary and secondary windings. This is assessed by verifying output voltage and current parameters for given electrical input.

  28. TEXTS, READINGS, AND MATERIALS: Instructional materials may include but are not limited to

    Textbooks
    Herman, S. (2011) Delmar's Standard Textbook of Electricity, 5th Ed., Cengage
    Manuals
    Periodicals
    Software
    Other
  29. METHOD OF DELIVERY:
    Online with some required face-to-face meetings (“Hybrid”);Face to face;
  30. MINIMUM QUALIFICATIONS:
    Engineering (Masters Required);Engineering Technology (Masters Required);Industrial Technology;Technology (Masters Required);

  31. APPROVALS:

    Origination Date
    09/30/2011
    Last Outline Revision
    02/24/2012
    Curriculum Committee Approval
    02/24/2012
    Board of Trustees
    05/03/2012
    State Approval
    UC Approval
    UC Approval Status
    CSU Approval
    70 = Fall 2012
    CSU Approval Status
    Approved
    IGETC Approval
    IGETC Approval Status
    CSU GE Approval
    CSU GE Approval Status