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Alamo Colleges District • St. Philip's College • - • INTC-Instrumentation & Control

AC/DC Motor Control INTC-1357

  • Full Term Spring 2016
  • Section 001.11231
  • 3-2-4 Credits
  • 01/19/2016 to 05/14/2016
  • Modified 04/07/2016

Meeting Times


Class will meet on Mondays from 12:10pm - 2:00-pm for lecture, and from 2:10pm - 6:00pm for laboratory studies.

All classes will meet at the SWC Industrial Tech Center, C157.

Contact Information

INSTRUCTOR:  Richard Ozuna

OFFICE:  Bldg. 1, A-171

PHONE:  (210) 486-7196 

E-MAIL:  [email protected]

OFFICE HOURS:  Call for appointment


Required Personal Protection Equipment:

     Safety Glasses with Side Shields


Electric Motors & Motor Controls, 2nd Edition

  • Author: Jeff Keljik
  • Publisher: Thomson Delmar Learning
  • Edition: 2nd
  • ISBN: 13: 978-1-4018-9841-0


A study of electric motors and motor control devices common to a modern industrial environment; a presentation of motor characteristics with emphasis on starting, speed control, and stopping systems.


CETT 1305 or CETT 1409


At the successful completion of this course, the student will be able to:

1. Describe the construction and operation of single-phase motors

2. Describe the construction and operation of three-phase motors and generators

3. Explain the operation of basic motor control circuits.

4. Describe the construction and function of controllers, relays and timers.

5. Describe the operation of three-phase motors, controls and full voltage starting.

6. Explain the principles of controlling motor acceleration and deceleration

7. Perform motor maintenance and installation.

8. Describe the characteristics of special motors.

9. Describe a motor control power distribution and monitoring system

10. Explain the operation of DC motors, generators, and controls


1 Describe the types of electric motors and explain the operation and function of various motor control devices.


Examinations will be announced by the instructor or as indicated in the class syllabus.

All tests,except the final examination, will be one (1) hour in length.

All quizzes, tests, and examinations for this course are closed book /closed notes as these will not be allow for taking entry level exams.

Student grades will be determined by the percentages as assigned below:

                    Attendance & Participation         10%

                    Work Sheets, Homework             15%

                    Laboratory Exercises                   20%

                    Unit Tests                                      20%

                    Final Project (QEP Project)          15%

                    Final Written Exam                        20%

                                                       TOTAL        100%



Grading system for all courses taught in the Department of Electronics and Information Technology:

                        A = 90 - 100%                                        D = 66    - 74%

                        B = 80 - 89%                                         F  = BELOW 66%

                        C = 75 - 79%


Section VII (Graduation) of the current College Catalog applies to all students.



1. Describe the various types of electric motors and the operating characteristics

2. Explain the operation and function of various motor control devices

3. Explain various method of motor braking and their applications

4. Demonstrate the ability to construct various motor control circuits related to industrial applications.


Course Policies

St. Philip's College : Applied Electrical & Manufacturing Technology

      Program Physical/Health Requirements:

  1. Finger and Manual dexterity
  2. Ability to climb a step ladder or use a step stool, balance, stoop, kneel, and lift heavy loads (20 lbs.), reach over objects.
  3. Near visual acuity and depth perception
  4. Visual Color Discrimination -- The ability to match or detect differences between colors, including shades of color and brightness.


Note:    Students with special needs must register with the Disability Resource Center prior to the beginning of classes.


Week 1-   Introduction to Motor Control

                1-1:  Basic Principles of Electric Motor Control  

                1-2:  Motor Starters                      

                1-3:  Protection of Devices


Week 2-  Control Pilot Devices

               2-1:  Pushbutton Control

               2-2:  Relays and Contactors

               2-3:  Timing Relays

               2-4:  Switches  


Week 3-  Circuit Layout - Connections and Symbols  

               3-1:  Abbreviations, Connections, and Symbols

               3-2:  Simple Wiring and Elementary Diagrams                                                                                                             

Week 4- Basic Control Circuits  

              4-1:  Two-Wire Controls

              4-2:  Three-Wire Controls

              4-3:  Separate Control

              4-4:  Hand-Off-Automatic Controls

              4-5:  Multiple Pushbuttons

              4-6:  Mechanical Interlock for Reversing Control

              4-7:  Pushbutton Interlocking

              4-8:  Sequence Control

              4-9:  Sequence Control Timers

              4-10: Drum Switch Control


Week 5- Reduced AC Voltage Starters      

              5-1:  Primary Resistor Starters

              5-2:  Autotransformer Starters

              5-3:  Part Winding Motor Starters

              5-4:  Automatic Starters for Wye-Delta Motors


Week 6- Three-Phase Multispeed Controllers   

              6-1:  Two-Speed, Two-Winding Motor Controllers

              6-2:  Two-Speed, One-Winding Motor Controllers

              6-3:  Two-Speed Starter with Reversing Controls


Week 7-  Wound Rotor Motor Controllers      

               7-1:  Manual Speed Control

               7-2:  Pushbutton Speed Selection

               7-3:  Automatic Acceleration

               7-4:  Automatic Speed Control  


Week 8-  Synchronous Machine Controls

               8-1:  Pushbutton Starting of a Synchronous Motor

               8-2:  Timed Semi-Automatic Synchronizing

               8-3:  Synchronizing Synchronous Alternators


Week 9-  MidTerm Exam (Chapters 1-8)


Week 10- Direct Current Controllers   

                9-1:  Across-the-Line Starting  

                9-2:  Definite-Time Motor Starter  

                9-3:  Drum Controller  

                9-4:  Series Starting Resistance

                9-5:  Three-Point DC Manual Starters  

                9-6:  Four-Point DC Manual Starters  

                9-7:  Counter EMF Controller  

                9-8:  Motor Driven Timer Controller


Week 11- Jogging (Inching) Control Circuits     

                10-1:  Jogging Using a Control Relay      

                10-2:  Jogging Using a Control Relay and a Reversing Starter      

                10-3:  Jogging Using a Reversing Starter and a Selector Swicth


Week 12-  Methods of Braking    

                11-1:  Plugging    

                11-2:  Plugging Using a Time Delay Relay    

                11-3:  Anti-Plugging Protecting  

                11-4:  Electromagnetic Brakes    

                11-5:  Dynamic Braking of DC Motors    

                11-6:  Dynamic Braking of a Synchronous Motor  

                11-7:  DC Injection Braking of a Squirrel Cage Motor    

                11-8:  DC Injection Braking of a Wound Rotor Motor


Week 13- Rectifier Circuits    

                12-1:  Silicon Diode Rectifier    

                12-2:  Half-Wave Rectification      

                12-3:  Full-Wave Rectification      

                12-4:  Bridge Rectifier      

                12-5:  Three-Phase Half-Wave Rectifier    

                12-6:  Three-Phase Bridge Rectifier


Week 14-  Electronic Power Controls  

                13-1:  Silicon Controlled Rectifier - Basic Operation    

                13-2:  Silicon Controlled Rectifier - Speed Regulation  

                13-3:  Saturable Reactor          

                13-4:  Magnetic Amplifier Control - AC Output      

                13-5:  Magnetic Amplifier Control - DC Control    

                13-6:  Solid-State Relays


Week 15-  Photoelectric and Proximity Switches

                14-1:  Photoelectric Switches - Basic Operation      

                14-2:  Photoelectric Switches - Application    

                14-3:  Proximity Switches


Week 16-  Final Exam (Chapters 9-14)



Institutional Policies


A. Attendance:

Effective Spring Term 2010, student absences will be recorded from the first day the class meets. Regular and punctual attendance in all classes and laboratories, day and evening, is required. Students who are absent for any reason should always consult with their instructors. Course syllabi must provide specific information regarding attendance, including, for courses involving the internet, online activity that constitutes “attendance.” Also, both tardiness and early departure from class may be considered forms of absenteeism. In all cases, students will be held responsible for completion of course requirements covered in their absence.

Additionally, it is the student’s responsibility to drop a course for nonattendance. Course instructors establish policy with regard to attendance in their respective syllabi and may drop a student for excessive absences. Absences are considered excessive when more than 12.5 percent of the total contact hours of instruction in a semester, including lecture and lab, are missed. For example, in a three-credit-hour lecture class, students may be dropped after more than six contact hours of absences. In a four-credit-hour lecture/lab class, students may be dropped after more than eight contact hours of absences. Absences are counted regardless of whether they occur consecutively.

In special programs with additional accreditation or certification standards, additional attendance requirements may be enforced but faculty must clearly explain these policies in their syllabi. Students who stop attending class for any reason should contact the instructor and the college registrar to officially withdraw from the class. Students may be required to consult with an advisor or designee before dropping.

Failure to officially withdraw may result in a failing grade for the course. It is the student’s responsibility to withdraw officially from a class by submitting a completed Withdrawal Form to the Admissions and Records Office.

B. Student Responsibility for Success (Alamo Colleges Policy F.6.2):

As members of the Alamo Colleges learning community, students, faculty, staff and administrators all share the responsibility to create an atmosphere where knowledge, integrity, truth, and academic honesty are valued and expected. A clear acknowledgment of the mutual obligations of all members of the academic community emphasizes this implicit partnership in fostering the conditions necessary for student success.

In this relationship, the Alamo Colleges provides institutional policies, procedures, and opportunities to facilitate student learning that encourage interaction, involvement and responsible participation. Inherent in the academic climate is the expectation that students will assume responsibility for contributing to their own development and learning. Academic success is directly tied to the effort students put into their studies, the degree to which they interact with faculty and peers, and the extent to which students integrate into the campus life.

1. Engagement

  1. Create connections and build relationships with faculty, staff and students (visit during office hours, join clubs and organizations, participate in student activities, etc.);
  2. Stay informed of policies, procedures, deadlines and events for academic and co-curricular activities;
  3. Complete all requirements for admission, registration, and payment by deadlines;
  4. Apply for financial assistance, if needed, complying with all federal, state and local regulations and procedures;
  5. Meet all federal, state and local health care regulations.

2. Communication

  1. Seek guidance from faculty, advisors or counselors for questions and concerns in regards to degree plans, major selection, academic status, grades, and issues impacting college success;
  2. Develop a peer support system to identify student contacts for questions, group assignments, etc. regarding academic and co-curricular activities;
  3. Communicate with College personnel promptly regarding academic or co-curricular concerns and assistance requests;
  4. Carefully consider the information provided by College personnel and make decisions using that information;
  5. Check the Alamo Colleges’ Web Services regularly for emails, holds, student records, financial aid status and announcements;
  6. Submit disability documentation if seeking services and request academic accommodations in advance of each semester.

3. Academic Success

  1. Complete courses with passing grades and maintain in good academic standing (2.0 GPA) status;
  2. Read and follow all syllabi;
  3. Purchase textbooks and required supplies in a timely manner;
  4. Attend classes regularly and on time, with as few absences, late arrivals, and early exits as possible;
  5. Arrive to class with all needed materials and completed assignments for that class period;
  6. Be attentive in class and actively participate as appropriate;
  7. Devote sufficient time for studying;
  8. Ensure integrity in all aspects of academic and career development;
  9. Accurately represent one’s own work and that of others used in creating academic assignments. Use information ethically and exercise appropriate caution to avoid plagiarism on all assignments;
  10. Notify faculty in advance or as soon as possible about absences and provide documentation as appropriate;
  11. Consult faculty members in advance when unable to complete projects, assignments, or take examinations as scheduled.

4. Self-Responsibility and Responsibility to Others

  1. Maintain accurate and complete degree/certificate major selection and contact information including name, address, phone number and emergency contact;
  2. Balance personal obligations and educational pursuits. Work with a counselor / advisor to design a realistic schedule that dedicates adequate effort to be successful in college studies;
  3. Know and follow the regulations and guidelines outlined in the Student Code of Conduct and Student Handbook;
  4. Maintain respectful and appropriate behavior within and outside the classroom;
  5. Ask for help when needed. Use all available resources and facilities provided by the College to enhance the learning experience;
  6. Attend scheduled advising sessions, tutorials, and other appointments. Cancel or reschedule only with good reasons as early as possible;
  7. Arrive prepared for tutorial sessions, bringing all needed materials (books, syllabi, rough drafts, calculators, assignment sheets, etc.).

C.  Textbook Availability

A student of this institution is not under any obligation to purchase a textbook from a university-affiliated bookstore. The same textbook may also be available from an independent retailer, including an online retailer.


While other exams are given at the discretion of the instructor, a final assessment is given at the end of each semester for each course. The Final Exam Schedule changes with each term and differs from normal class meeting dates and times. See the Final Exam Schedule in the Catalog/Schedule of Classes in the left hand navigation bar.

A student who must be absent from a final evaluation should petition that instructor for permission to postpone the evaluation. A student absent without permission from a final evaluation is graded "0" on the exam.

Incomplete Grades.  The conditional grade of “I” may be issued to a student having a passing average on all completed coursework but for a justified reason, such as illness or death in the family or by providential hindrance, has been prevented from taking the final examination or completing other required coursework. The “I” becomes an “F” in one hundred twenty (120) calendar days from the end of the term unless the student completes the balance of the coursework with a performance grade of “D” or higher. Re-enrollment in the course will not resolve the “I.”  The student and faculty must fill out an Incomplete Contract, clearly defining the work remaining to be finished.

College Policies

St. Philip’s College Mission Statement 

St. Philip's College, founded in 1898, is a comprehensive public community college whose mission is to empower our diverse student population through personal educational growth, ethical decision-making, career readiness, and community leadership. As a Historically Black College and Hispanic Serving Institution, St.Philip's College is a vital facet of the community, responding to the needs of apopulation rich in ethnic, cultural, and socio-economic diversity. St. Philip's College creates an environment fostering excellence in academic and technical achievement while expanding its commitment to opportunity and access.

The college fulfills its mission by offering:

1) General courses in arts and sciences leading to an associate degree.

2) Transfer education for students desiring to attend senior institutions.

3) Developmental courses that improve the basic skills of students whose academic foundations require strengthening.

4) Applied Science and technical programs leading to an associate degree or certificate designed to prepare students for employment and/or to update crucial skills.

5) Workforce and Career development training programs for business, industryand government.

6) Continuing education programs for occupational and educational enrichment or certification.

7) Counseling and guidance designed to assist students in achieving their educational and professional goals.

8) Educational support services including library services, tutoring, open usecomputer labs and writing center.

9) Services and appropriate accommodations for special populations, to include adult literacy and distance education.

10) Quality social, cultural, and intellectual enrichment experiences for the community.

11) Opportunities for participation in community service and economic development projects.

St. Philip’s College Quality Enhancement Plan: Ethical Decision Making

St. Philip's College is committed to quality education, as such the focus of the 2016 Quality Enhancement Plan is ethical decision-making which is the ability to connect values and choices to actions and consequences.

QEP Student Learning Outcomes:

    • Values: Students gain skills to assess their own values.
    • Ethical Issues: Students identify and are knowledgeable of ethical issues.
    • Perspectives: Students analyze various ethical perspectives.

 For more information on the Quality Enhancement Plan,

click HERE



Policies for St. Philip's College:

A. All of the Alamo Colleges are tobacco free.

B. Alamo Colleges DPS Emergency Phone Numbers:

Emergency Phone (210) 485-0911

General Phone (210) 485-0099

Weather Phone (210) 485-0189 (For information on college closures)

C. Disability Access Statement – In accordance with the Americans with Disabilities Act (ADA) and Section 504 of the Rehabilitation Act, it is the responsibility of the student to self-identify with the campus Disability Support Services office. Only those students with appropriate documentation will receive a letter of accommodation from the Disability Support Services office. Instructors are required to follow only those accommodation and/or services outlined in the letter of accommodation. For further information, please contact the Disability Support Services office at (210) 486-2295 / (210) 486-2199 or SWC (210) 486-7175 or visit the office located:

MLK Campus – Located at the Sutton Learning Center, Ste. 102

SWC – Located in the LIFEspace office, Bldg. 1, A-135

Web -

If you have specific needs, please discuss them privately with your instructor.

D. Mandatory Student Training for Online Classes:

**Note** If you are new to online classes, it is MANDATORY to take the Orientation to Online Learning course, OLRN 0001, CRN #18893 or 20359. This course familiarizes students with navigating through the online system for a successful start. Register for the free, self-paced OLRN course the same way as any other course. See or call (210) 486-2239 for more information