Standard |
DDS 238 - Electrical Distribution
Provides theory and practical application needed to draft high and low voltage power distribution systems. Topics include: plant line distribution, sub station distribution, service entrance distribution, mapping, plant distribution branching circuits, and balancing 2 phase/3 phase systems loads.
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Competency Areas |
Hours
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Plant Line Distribution |
Class |
3 |
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Sub Station Distribution |
D. Lab |
7 |
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Service Entrance Distribution |
P. Lab/O.B.I. |
0 |
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Mapping |
Credit |
6 |
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Plant Distribution Branching Circuits |
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Balancing 2 Phase/3 Phase Systems Loads |
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Prerequisite: |
ELC 100, ELC 101 |
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Corequisite: |
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Course Guide |
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Competency |
After completing this
section, the student will: |
Hours |
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Class |
D.Lab |
P.Lab/ O.B.I. |
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PLANT LINE DISTRIBUTION |
5 |
10 |
0 |
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Electric generator transmission circuits |
Draw the circuits associated with and originating at the power generating stations. |
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Distribution to high, medium, and low substations |
Draw the distribution of electrical power transmission lines from the power plant to the appropriate substations. |
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5 |
12 |
0 |
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Radial systems |
Identify and draw the radial form of substation distribution. |
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Ring systems |
Identify and draw the ring form of substation distribution. |
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Network |
Identify and draw the network form of substation distribution. |
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SERVICE ENTRANCE DISTRIBUTION |
5 |
12 |
0 |
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Feeders |
Draw the interconnect wiring between the service entrance and branch circuits. |
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Branch circuits |
Draw the interconnect wiring of the branch circuits. |
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Panel boards |
Draw the wiring associated with overcurrent devices and distributed to a load or outlet. |
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MAPPING |
5 |
12 |
0 |
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Territorial |
Draw territorial maps with appropriate symbols, location coordinates, and proper scale sizes. |
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Key |
Draw key maps with appropriate symbols, location coordinates, and proper scale sizes. |
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PLANT DISTRIBUTION BRANCHING CIRCUITS |
5 |
12 |
0 |
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120/240 volt single phase systems |
Draw and diagram 120/240 volt single phase 3-wire systems. |
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277/480 volt three phase systems |
Draw and diagram 277/480 volt three phase 4-wire systems. |
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240/480 volt three phase systems |
Draw and diagram 240/480 volt three phase 3-wire systems. |
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BALANCING 2 PHASE/3 PHASE SYSTEMS LOADS |
5 |
12 |
0 |
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2 phase systems |
Identify and draw the windings, interconnects, and loads of a 2 phase alternator. |
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3 phase |
Identify and draw the windings, interconnects, and loads of Delta and Wye 3 phase systems. |
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Balanced |
Draw balanced 2 phase/3 phase systems |
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Suggested Resources |
Duncan, C., & Stocks, E. G. (1988). Systems
of electrical supply & distribution. New York: State Mutual.
IEEE Power Engineering Society Transformers Committee.
(Eds.). (1990). C57: Distribution, power & regulating transformers,
Winter 1992 (rev ed.). Piscataway, NJ: IEEE Standards.
Knable, A. H. (1982). Electrical power systems
engineering: Problems & solutions (repr. of 1967 ed.). Melbourne, FL:
Krieger.
Qayoumi, M. H. (1989). Electrical distribution
& maintenance. Alexandria, VA: Assn Phys Plant Admin.
Wilhoite, G. M. (Ed.). (1986). Innovations in the design of electrical transmission structures. {Proceedings of a conference sponsored by the structural division.} New York: American Society of Civil Engineers.