Download AC/DC Theory - Mohave Community College

ELC 115
AC/DC Theory
Course Package
Presented and Approved
July 31, 2008
NEW COURSE PACKAGE FORM
Contact person(s)
Steven Seid/ Clayton Steenberg
Date of proposal to
July 31, 2008
Curriculum Committee
COURSE INFORMATION
Prefix &
ELC 115
Title AC/DC Theory
Number
Catalog Course Description: Examines the essential elements of alternating and direct
current electrical theory. Topics will include the atomic structure, the study of material
properties as conductors, semiconductors, and insulators, an in-depth exploration of
Ohm’s law and how it relates to voltage, current, resistance, and power. Three-phase
and single-phase circuitry will be covered as well as topics such as parallel and series
circuits, magnetism, transformers, and generators. Will focus on concepts that are
necessary for successful career as an electrician.
Credit hours
3
Prerequisite(s)
Lecture hours
Lab hours
3
0
Successful completion of ELC 110 and ELC 112
Co-requisite(s)
Does this course need a separately scheduled lab component? __ Yes
_X_ No
Proposed semester for
__ Fall
__ Spring
__ Summer
new course to start
2008___
20___
20___
Does this course need additional fees attached? If so, please explain.
Is there a similar course in
the college bank?
Articulation: Is this course
or an equivalent offered at
other two- and four- year
universities in AZ?
__ Yes _X_ No If yes, identify:
__ Yes __ No If yes, identify the college, subject, prefix,
number, and title:
Writing Across the Curriculum Rationale:
Mohave Community College firmly supports the idea that writing can be used to
improve education; students who write in their respective content areas will learn more
and retain what they learn better than those who don’t. Courses in the core curriculum
have been identified as “Writing Across the Curriculum” courses.
Suggested minimum standards for the Writing Across the Curriculum component are as
follows:
1. The writing assignments should total 1500 – 2000 words. For example, a single
report which is 1500 words in length could fulfill the requirement, or a series of
essay questions and short papers (example: four -375 word assignments) which
total 1500 words could meet the requirement.
2. The writing component will represent at least 10% of a student’s final grade in
the course.
Is this a course identified as a Writing Across the
Curriculum course?
__ Yes
X__ No
Intended Course Outcomes
By the end of the semester, students will be able to:
1. Understand the basics of the atomic structure and its effects on electricity.
2. Understand and apply basic mathematical formulas, such as Ohm’s law to electrical
circuits.
3. Recognize the differences between series and parallel circuits, and single and threephase electrical circuits.
4. Understand how magnetism affects electrical systems.
5. Understand how testing and measuring instruments are used to monitor and
troubleshoot electrical circuits.
6. Use proper safety procedures and personal protective equipment when working with
electricity and understand the risks of injury or death when working with electrical
systems.
Course Competencies and Objectives
Competency 1: Describe atomic structure as it pertains to basic electricity.
Objective 1.1 Identify the basic parts of an atom.
Objective 1.2 Describe the flow of electrons.
Objective 1.3 Discuss the various methods of producing electricity.
Competency 2: Determin various electrical measures.
Objective 2.1 Define amps, watts, and voltage.
Objective 2.2 Discuss Ohm’s law
Objective 2.3 Describe the various measures of amps, watts, and voltage.
Competency 3: Describe the basic concepts of series electrical circuits.
Objective 3.1 Discuss voltage and drops in a series circuit.
Objective 3.2 Describe resistances in a series circuit.
Objective 3.3 Evaluate voltage polarities.
Competency 4: Describe the basic concepts of parallel electrical circuits and compare
its properties with series circuits.
Objective 4.1 Describe the nature and use of parallel circuits.
Objective 4.2 Discuss parallel circuit values.
Objective 4.3 Identify resistance formulas for parallel circuits.
Competency 5: Identify the most common types of measuring devices used by
electricians.
Objective 5.1 Explain and demonstrate the safe and correct use of a voltmeter,
ampmeter, and ohmmeter.
Objective 5.2 Describe the differences between analog and digital meters.
Objective 5.3 Describe and analyze the conditions under which recording meters are
used.
Competency 6: Describe wire-sizing standards for electrical applications, as specified by
NEC code.
Objective 6.1 Describe how voltage drop is related to wire sizes.
Objective 6.2 Discuss wire size for circuits with known amp draws.
Objective 6.3 Describe the testing procedures to be performed for new installations.
Competency 7: Describe the use of batteries as a source of electricity.
Objective 7.1 Discuss the history of batteries.
Objective 7.2 Compare and contrast series and parallel battery circuits.
Objective 7.3 Describe how battery cells produce electricity.
Objective 7.4 Compare and contrast the most commonly used battery types,
including the chemicals and types of metals used.
Competency 8: Describe the advantages of three-phase circuits for commercial
applications.
Objective 8.1 Compare and contrast wye and delta connections.
Objective 8.2 Demonstrate the basic calculations need for three-phase circuit design
and installation.
Objective 8.3 Describe power factor and discuss its use.
Competency 9: Discuss the use of single-phase transformers.
Objective 9.1 Evaluate conditions that require the use of insulated transformers.
Objective 9.2 Describe how the relationship between voltage and current is used in
transformers.
Objective 9.3 Describe and demonstrate the testing procedures used for
transformers.
Competency 10: Discuss the use of three-phase transformers
Objective 10.1 Explain using delta-wye connections with neutrals.
Objective 10.2 Identify a closed delta transformer with center tap.
Objective 10.3 Describe the various voltage patterns from a three-phase transformer.
Teacher’s Guide
Course Materials and Equipment
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Delmar’s Standard Textbook of Electricity 4 e.
Stephen L. Herman
Cengage
13-978-1418065805
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Course Assessment Information
Description of Possible Course
Assessments
(Essays, multiple choice, etc.)
Exams standardized for this course?
Midterm
Final
Other (please specify):
Where can faculty members locate or
access the required standardized exams for
this course? (Contact person and location)
Example: NCK – Gen Ed Division Chair
Office
Are exams required by the department? __
Yes __ No
If Yes, please specify:
NCK___________________________________
BHC___________________________________
LHC___________________________________
NMC___________________________________
DE_____________________________________
Office of Instruction______________________