TERMINAL OBJECTIVE - h1016v1

ENABLING OBJECTIVES (Cont.) - h1016v1_96

Engineering Symbology Prints and Drawings Volume 1 of 2
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Electrical Diagrams and Schematics DOE-HDBK-1016/1-93 OBJECTIVES TERMINAL OBJECTIVE 1.0 Given an electrical print, READ and INTERPRET facility electrical diagrams and schematics. ENABLING OBJECTIVES 1.1 IDENTIFY the symbols used on engineering electrical drawings for the following components: a. Single-phase circuit breaker (open/closed) b. Three-phase circuit breaker (open/closed) c. Thermal overload d. "a" contact e. "b" contact f. Time-delay contacts g. Relay h. Potential transformer i. Current transformer j. Single-phase transformer k. Delta-wound transformer l. Wye-wound transformer m. Electric motor n. Meters o. Junctions p. In-line fuses q. Single switch r. Multiple-position switch s. Pushbutton switch t. Limit switches u. Turbine-driven generator v. Motor-generator set w. Generator (wye or delta) x. Diesel-driven generator y. Battery 1.2 Given an electrical drawing of a circuit containing a transformer, DETERMINE the direction of current flow, as shown by the transformer's symbol. 1.3 IDENTIFY the symbols and/or codes used on engineering electrical drawings to depict the relationship between the following components: a. Relay and its contacts b. Switch and its contacts c. Interlocking device and its interlocked equipment Rev. 0 Page v PR-03

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