REFERENCES

Gussow, Milton, Schaum's Outline Series, Basic Electricity,McGraw-Hill.

Academic Projzram for Nuclear Power Plant Personnel,Volume II, Columbia, MD: General Physics Corporation, Library of Congress Card #A 326517, 1982.

Nasar and Unnewehr, Electromechanics and Electric Machines,John Wiley and Sons.

Van Valkenburgh, Nooger, and Neville, Basic Electricity,Vol. 5, Hayden Book Company.

Lister, Eugene C., Electric Circuits and Machines,5`''Edition, McGraw-Hill.

Croft, Carr, Watt, and Summers, American Electricians Handbook,10`''Edition, McGraw­Hill.

Mason, C. Russel, The Art and Science of Protective Relate,John Wiley and Sons.

Mileaf, Harry, Electricity One - Seven,Revised 2"d Edition, Hayden Book Company.

Kidwell, Walter, Electrical Instruments and Measurements,McGraw-Hill.

National Electrical Code,Batterymarch Park, Quincy, MA: National Fire Protection Association.

TERMINAL OBJECTIVE

1.0       Given the functional characteristics of an AC power source and the intended load, DESCRIBE the necessary components and the wiring scheme to provide a safe Electrical Distribution System.

ENABLING OBJECTIVES

1.1       EXPLAIN the following terms as they apply to Electrical Distribution Systems:

a.         Single (one-line) diagram

b.         Commercial or utility power

c.         Diesel power

d.         Failure-free power

e.         Neutral grounding

f.          Voltage class

g.         Protective relays

h.         Overlapping protective zones

1.2       DESCRIBE the protection provided by each of the following: a. Fuses

b.         Protective relays

1.3       STATE the purpose of circuit breakers.

1.4       Given a simple schematic of a circuit breaker control circuit, DESCRIBE the operation of that breaker during remote operation and automatic tripping.

1.5       LIST the three most widely-used protective features that may be incorporated into a circuit breaker control circuit.

1.6       STATE the function of motor controllers.

1.7       STATE three protective features (overloads) that may be incorporated into a motor controller.

1.8       Given a simplified drawing of a motor controller, DESCRIBE the operation of that motor controller.

1.9       DEFINE the following terms as they apply to wiring schemes used in power distribution systems:

a. Ampacity

b. Bond

c. Conductor

d. Ground

e.         Ground voltage

f. Leg

g. Neutral

h.         Phase voltage

1.10     DESCRIBE the two methods of connecting single-phase loads to a three-phase power source.

1.11     DESCRIBE the purpose of the following power distribution schemes.

a.         3-wire, single-phase Edison system

b.         3-wire, three-phase Delta system

c.         4-wire, three-phase Delta system

d.         4-wire, three-phase Wye system

SYSTEM COMPONENTS AND PROTECTION DEVICES

Nuclear facilities rely on dependable electrical distribution systems to provide power to key vital equipment. Knowledge of the basic electrical power distribution system and its components will help the operator understand the importance of electrical power distribution systems.

EO 1.1EXPLAIN the following terms as they apply to Electrical Distribution Systems:

a.         Single (one-line) diagram

b.         Commercial or utility power

c.         Diesel power

d.         Failure-free power

e.         Neutral grounding

f.          Voltage class

g.         Protective relays

h.         Overlapping protective zones

EO 1.2DESCRIBE the protection provided by each of the following:

a. Fuses

b.         Protective relays

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