Official Course Description: MCCCD Approval: 07/22/08
ELC220 19896-20086	L+L	3 Credit(s)	3 Period(s)
Electrical Power Systems
Generation, transmission and distribution of electric power. Single and three phase, wye-delta, transformers, switchgear. Voltage control, power factor adjustment, overcurrent protection, metering, grounds. System operation and equipment. Prerequisites: ELE112.

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MCCCD Official Course Competencies:
ELC220   19896-20086	Electrical Power Systems

1.	Apply one-line diagrams to a power system and describe symbols used. (I)
2.	Identify and describe functions of parts of a power system. (II)
3.	Perform voltage, current and power calculations for various wye-delta configurations. (III)
4.	Compare and contrast single phase and three phase systems. (IV)
5.	Describe the functions of transformers and substations. (V)
6.	Demonstrate regulator and capacitor sizing requirements. (VI)
7.	List methods and describe devices for overcurrent protection. (VII)
8.	Describe function of breakers and other switchgear. (VIII)
9.	List voltages encountered throughout a power system. (IX)
10.	Describe functions and levels of primary distribution systems. (X)
11.	Identify the requirements for specific users of a secondary distribution system. (XI)
12.	Demonstrate voltage drop and power factor correction calculations. (XII)
13.	Perform loading calculations and selection of service entrance section. (XIII)
14.	Describe electrical equipment and system grounding requirements. (XIV)
15.	Identify factors of power system operation. (XV)
16.	Describe features expected in future power systems. (XVI)

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MCCCD Official Course Outline:
ELC220   19896-20086	Electrical Power Systems

I. Electric Power System Fundamentals A. AC circuits and power B. Three-phase systems C. One-line diagram II. Power System Overview A. Generation B. Transmission C. Distribution III. Wye and Delta Systems A. Configurations B. Phase and line voltages C. Phase and line currents D. Power calculations IV. Single Phase and Three Phase Power A. Calculations B. Metering C. Power factor V. Transformers and Substations A. Configurations B. Ratings and selection C. Buss arrangements D. Protective relaying VI. Voltage control A. Regulators B. Capacitors VII. Overcurrent Protection A. Short circuit calculations B. Fuses and fuse selection C. Switch and breaker selection VIII. Breakers and Switchgear A. Characteristics B. Requirements C. Types of breakers D. Arc interruption IX. Electric Power System A. Generation B. Transmission C. Distribution X. Primary Distribution System A. Distribution substation B. Configuration C. Apparatus XI. Secondary Distribution System A. Circuitry and equipment B. Commercial and industrial C. Suburban, residential and rural D. Service considerations XII. Voltage Variation and Power Factor Adjustment A. Effect of low voltage B. Voltage drop considerations C. Calculating voltage drop D. Power factor improvement XIII. Power Meters and Service Entrances A. General requirements B. Low voltage systems C. Medium voltage systems XIV. Electrical Equipment and System Grounding A. Types of grounds B. System grounds C. Equipment and grounding D. Step and touch potential E. Grounding practices XV. System Operations A. Control B. Maintenance C. Communication D. Automation E. Security XVI. Future Power Systems A. High voltage DC B. AC voltage systems C. Power generation

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