| 3/12/2025 4:53:01 PM |
| New Course (First Version) |
| CATALOG INFORMATION
|
| Discipline and Nbr:
ELEC299.43 | Title:
BASIC ROTATING MACHINERY |
|
| Full Title:
Basic Rotating Machinery for Maintenance Technicians |
| Last Reviewed:1/31/2005 |
| Units | Course Hours per Week | | Nbr of Weeks | Course Hours Total |
| Maximum | 2.00 | Lecture Scheduled | 4.00 | 8 max. | Lecture Scheduled | 32.00 |
| Minimum | 2.00 | Lab Scheduled | 0 | 8 min. | Lab Scheduled | 0 |
| | Contact DHR | 0 | | Contact DHR | 0 |
| | Contact Total | 4.00 | | Contact Total | 32.00 |
| |
| | Non-contact DHR | 0 | | Non-contact DHR Total | 0 |
| | Total Out of Class Hours: 64.00 | Total Student Learning Hours: 96.00 | |
Title 5 Category:
AA Degree Applicable
Grading:
P/NP Only
Repeatability:
04 - Different Topics
Also Listed As:
Formerly:
Catalog Description:
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Basics of rotating machinery including both DC and AC motors and generators. Includes 3 phase and single phase rotating machinery.
Prerequisites/Corequisites:
Recommended Preparation:
Limits on Enrollment:
Schedule of Classes Information
Description:
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Basics of rotating machinery including both DC and AC motors and generators. Includes 3 phase and single phase rotating machinery.
(P/NP Only)
Prerequisites:
Recommended:
Limits on Enrollment:
Transfer Credit:CSU;
Repeatability:04 - Different Topics
ARTICULATION, MAJOR, and CERTIFICATION INFORMATION
| Associate Degree: | Effective: | | Inactive: | |
| Area: | | |
| |
| CSU GE: | Transfer Area | | Effective: | Inactive: |
| |
| IGETC: | Transfer Area | | Effective: | Inactive: |
| |
| CSU Transfer: | Transferable | Effective: | Spring 2004 | Inactive: | Spring 2012 |
| |
| UC Transfer: | | Effective: | | Inactive: | |
| |
| C-ID: |
Certificate/Major Applicable:
Not Certificate/Major Applicable
COURSE CONTENT
Outcomes and Objectives:
At the conclusion of this course, the student should be able to:
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Upon completion of the course the student will be able to at a beginning
to intermediate level:
1. Explain the operating principles of several different types
of AC and DC motors
2. Identify proper safety procedures when working around motors and
rotating machinery
3. Use proper tag-out procedures when working on electrical equipment
4. Troubleshoot and repair commutator and slip ring problems
5. Troubleshoot & repair defective rectifiers in alternators
6. Identify and troubleshoot various motor starting problems
7. Describe the operation and principles of squirrel cage rotators
in induction motors.
Topics and Scope
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1. Safety
2. Magnetism
poles
fields
repulsion
attraction
permeability
residual magnetism
3. Electromagnetism
flux density
field strength
hysterisis
effect of current increase and decrease
4. Counter current generation back EMF, Lenz's Law connection
5. Generators, basics of generating electric current, effects of magnetic
field strength, speed of magnetic field cutting with a conductor,
number of wires cut by magnetic fields
6. AC generation, (alternators) single phase machines
slip rings-brushes
rotating armature, stationary fields
rotating fields, stationary armature
self excitation
external excitation
7. AC generation, (alternators) poly phase machines
rotating armature, stationary fields
rotating fields, stationary armature
self excitation
external excitation
8. Alternators with DC outputs
rectification, single phase and poly phase
9. Types of machines
series wound
-adding fields
-opposing fields
shunt wound
compound wound
-series-parallel
-parallel-series
10. DC Motors
Series motors characteristics
Shunt motor characteristics
Compound motor characteristics
11. AC Motors, series (universal motors)
characteristics
comparison to DC series motors
12. AC Motors, induction
Rotating magnetic fields-generation of
Single phase rotating fields-generation of
Poly-phase rotating fields-generation of
Transformers and transformer action
Eddy currents
Stators
Rotors
Squirrel cage rotors
Starting current
Stall current
Run current
13. Starting Single Phase Motors
Synchronous motors
Shaded pole motors
Capacitor start
Resistance start
14. Motor Controllers
DC
AC
Assignments:
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Application of concepts and problem solving in the following areas:
1. Compare, in writing, the operating principles of AD and DC motors.
2. Demonstrate and utilize proper safety techniques when working with
motors.
3. Inspect and repair commutators, slip rings and rectifiers.
4. Assess the operation of squirrel cage rotators use in induction motors.
Methods of Evaluation/Basis of Grade.
| Writing: Assessment tools that demonstrate writing skill and/or require students to select, organize and explain ideas in writing. | Writing
5 - 10% |
| Lab reports | |
| Problem solving: Assessment tools, other than exams, that demonstrate competence in computational or non-computational problem solving skills. | Problem Solving
20 - 50% |
| Homework problems, Quizzes, Exams | |
| Skill Demonstrations: All skill-based and physical demonstrations used for assessment purposes including skill performance exams. | Skill Demonstrations
20 - 50% |
| Class performances, Performance exams, Written laboratory reports | |
| Exams: All forms of formal testing, other than skill performance exams. | Exams
10 - 30% |
| Multiple choice, True/false, Matching items, Completion | |
| Other: Includes any assessment tools that do not logically fit into the above categories. | Other Category
0 - 0% |
| None | |
Representative Textbooks and Materials:
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Representative Texts:
1. Industrial Motor Control Fundamentals (current edition), Robert L.
McIntyre and Rex Losee, Glenco, McGraw-Hill.
2. Electric Machines and Power Systems, Syed A. Nasar and S. A. Nasar,
1999, McGraw-Hill.
3. Rotating Electrical Machines and Power Systems, Dale R. Patrick
and Stephen W. Fardo, 2000, Prentice-Hall.
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