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EASTERN ARIZONA COLLEGE AC Electrical Systems Course Design 2012-2013 Course Information Division Industrial Technology Education Course Number ELT 112 Title AC Electrical Systems Credits 3 Developed by Charles A. Smith Lecture/Lab Ratio 2 Lecture/3 Lab Transfer Status ASU NAU EET Dept Elective CTE Departmental Elective Activity Course No CIP Code 47.0105 Assessment Mode Pre/Post Test (57 Questions/100 Points) Semester Taught Fall GE Category None Separate Lab No Awareness Course No Intensive Writing Course No UA Non Transferable Prerequisites None Educational Value To General Education: Elective Credit Description This course is an introductory course of Alternating Current (AC) theory and systems with a heavy emphasis on industrial application and settings. The course will introduce the student to transformers, electrical measuring test equipment, single and polyphase motors, motor controls, AC generation, and troubleshooting skills. Supplies Scientific Calculator EASTERN ARIZONA COLLEGE Equal Opportunity Employer and Educator 1 AC Electrical Systems Competencies and Performance Standards 1. Examine the characteristics of Alternating Current Electricity Learning objectives What you will learn as you master the competency: a. Analysis of series RL, RC, RLC circuits b. Analysis of Parallel RL, RC, RLC circuits c. Analysis of Series Parallel RL RC, RLC circuits d. Identify characteristics of Inductance and Capacitance e. Analysis of Inductive Reactance and Capacitance Reactance f. Classification of Frequency, Cycle and Period g. Evaluate peak, rms and average values of sine wave h. Define and calculate Impedance i. Comprehend and calculate Phase angle and power factor j. Explore the use of polar and rectangular quantities l. Calculate resonant frequency m. Compare High, Low and band pass filters Performance Standards Competence will be demonstrated: o o o o in class discussion group practice using model electrical circuits written tests Criteria - Performance will be satisfactory when: o o 2. learner completes written test to 70% correct learner manipulates model circuit to accomplish assigned test Implementation of AC Test Equipment Learning objectives What you will learn as you master the competency: a. Demonstrate how to read Voltage, Current, and Resistance in an AC Circuit b. Explain the proper use of a Voltmeter c. Demonstrate the proper use of an Ammeter d. Demonstrate the proper use of an Ohmmeter e. Determine proper usage of AC and DC Power Supplies f. Explain use of a Megger g. Assess the use of an Oscilloscope h. Examine the use of Pulse and Signal Generators i. Describe the use of a frequency counter Performance Standards Competence will be demonstrated: o o o in class discussion in group practice using test equipment EASTERN ARIZONA COLLEGE Equal Opportunity Employer and Educator 1 AC Electrical Systems o written tests o as observed by the learner’s instructor/supervisor Criteria - Performance will be satisfactory when: o 3. learner correctly demonstrates correct and safe use of test equipment Transformers Learning objectives What you will learn as you master the competency: a. Analysis of Single phase stepup and stepdown transformers b. Explore the use of Polyphase stepup and stepdown transformers c. Assessment of Delta and Wye transform configuration d. Calculate turns ratio and primary or secondary voltages e. Calculate transform Power VA and KVA ratings f. Analysis of Instrument transformers Current (CT) and Potential (PT) g. Test transformer insulation using a Megger h. Analysis of transformer polarity i. Compare methods of transformer cooling systems Performance Standards Competence will be demonstrated: o o o o in class discussion group practice using model electrical circuits written tests Criteria - Performance will be satisfactory when: o o learner completes written test to 70% correct. learner manipulates model circuit to accomplish assigned task Types of Instruction Lecture / modeling Electrical lab assignments Group practice Individual projects / presentations Grading Information Grading Rationale Final Exam – 35% Chapter Exams – 35% Lab Assignments – 20% Attendance – 10% EASTERN ARIZONA COLLEGE Equal Opportunity Employer and Educator 1 AC Electrical Systems Grading Scale A 90-100% B 80-89% C 70-79% D 60-69% F 59% and below EASTERN ARIZONA COLLEGE Equal Opportunity Employer and Educator 1 AC Electrical Systems