ELET 1520 - AC Electricity

Academic Division: Business, Industry and Technology
Academic Discipline: Electronic Engineering Technology

Assistant Dean: Vincent Palombo PhD

3 Credit(s)
A course covering alternating circuit theory including basic concepts of voltage, current, resistance, impedance, inductance, capacitance, phase angle, and their relationships to each other in an AC circuit. Transformers, resonance and use of AC instruments is also included. OET 003 UG OET003

2 Lab Hour(s)

2 Lecture Hour(s);

Required Prerequisite Course(s): Take ELET 1510

College Wide Outcomes

College-Wide Learning Outcomes	Assessments - - How it is met & When it is met
Communication – Written
Communication – Speech
Intercultural Knowledge and Competence
Critical Thinking
Information Literacy
Quantitative Literacy

Student Learning Outcomes for Course

Outcomes	Assessments – How it is met & When it is met
1. Sinusoidal wave properties: Safely measure the RMS values of voltage and current of an AC sine wave using both digital and analog multimeters or clip-on ammeters.	Lecture, Labs, and Quizzes during week 1 and throughout the remainder of the semester.
2. Safely measure AC sine wave voltages and phase shifts of voltage and current in RLC circuits on an oscilloscope.	Lecture, Labs, and Quizzes during weeks 3 and 4 and throughout the remainder of the semester.
3. Compute the peak voltage, peak-peak voltage, RMS voltage, frequency and cycle time period from a calibrated oscilloscope display of an AC sine wave.	Lecture, Labs, and Quizzes during week 2 and throughout the remainder of the semester.
4. Behavior of transformers: Describe the electromagnetic principles of transformer action: a. The pulsating magnetic field in the primary. b. The induced voltage in the secondary. c. The use of high permeability cores to maximize coupling. d. The techniques used to minimize core losses.	Lecture, Labs, and Quizzes during week 5 and throughout the remainder of the semester.
5. Compute the following transformer parameters: a. Turn ratio (given primary and secondary voltages) b. Turns ratio (given primary and secondary currents) c. Secondary voltage (given turns ratio and primary voltage) d. Secondary voltage (given rated VA and secondary current) e. Secondary current (given turns ratio and primary current) f. Secondary current (given rated VA and secondary voltage) g. Power losses and efficiency (given power input and output) h. h. Volt-ampere rating (given rated secondary voltage and current)	Lecture, Labs, and Quizzes during week 6 and throughout the remainder of the semester.
6. Complex numbers and phasors: Analyze RC, RL, and RLC circuits and state the results in rectangular and polar form.	Lecture, Labs, and Quizzes during weeks 10 and 11 and throughout the remainder of the semester.
7. AC network theorems such as Superposition, Thevenin’s and Norton’s theorems.	Lecture, Labs, and Quizzes during weeks 7 and 8 and throughout the remainder of the semester.
8. Power factor analysis, Three-phase and/or poly-phase systems Compute the per-phase voltage, current, volt- amps, power and power factor for both wye-connected and delta-connected loads on balanced three-phase line when given line voltage, line current and total load power.	Lecture, Labs, and Quizzes during weeks 8 and 9 and throughout the remainder of the semester.
9. Steady-state behavior of RC circuits under AC conditions, Steady-state behavior of RL circuits under AC conditions, Steady-state behavior of RLC circuits under AC conditions: Describe graphically the relative frequency response at the output of simple R-C, R-L and R-L-C networks for changing frequency.	Lecture, Labs, and Quizzes during weeks 12 and 13 and throughout the remainder of the semester.
10. Analysis of basic filter circuits: Be able to determine resonant frequency and Q of series/parallel resonant circuits.	Lecture, Labs, and Quizzes during weeks 14 and 15.

Standard Grading Scale
93-100 A

90 - 92 A-

87- 89 B+

83 - 86 B

80 -82 B-

77- 79 C+

73 - 76 C

70 -72 C-

67- 69 D+

63 - 66 D

60 -62 D-

00- 59 F

Statement on Diversity
North Central State College believes that every student is a valued and equal member of the community.* Every student brings different experiences to the College, and all are important in enriching academic life and developing greater understanding and appreciation of one another. Therefore, NC State College creates an inclusive culture in which students feel comfortable sharing their experiences. Discrimination and prejudice have no place on the campus, and the College takes any complaint in this regard seriously. Students encountering aspects of the instruction that result in barriers to their sense of being included and respected should contact the instructor, assistant dean, or dean without fear of reprisal.

*Inclusive of race, color, religion, gender, gender identity or expression, national origin (ancestry), military status (past, present or future), disability, age (40 years or older), status as a parent during pregnancy and immediately after the birth of a child, status as a parent of a young child, status as a foster parent, genetic information, or sexual orientation,

Standard NCSC Course Policies
Important information regarding College Procedures and Policies can be found on the syllabus supplement located at this link