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       CODE: 729.281-038 Buy the DOT:Download/CD-ROM
TITLE(s): RELAY TESTER (utilities) alternate titles: network-relay tester; relay-shop tester
Tests, cleans, repairs, and adjusts relays used to protect and control functions of equipment,
such as circuit breakers, transformers, and automatic switches in generating stations, substations,
and distribution facilities: Connects relay to test board and adjusts test board controls to
simulate operating conditions. Observes ammeters, voltmeters, and related test board recording and
indicating instruments to determine if relay performs all functions correctly, according to
specifications of manufacturer and relay history card. Analyzes reactions of relay to tests to
identify cause of malfunction. Tightens bolts, springs, and electrical connections, and adjusts
screws to correct malfunction. Adjusts electrical, thermal, and timing elements to calibrate relay,
according to installation specifications. Dismantles, cleans, or replaces worn or defective relays,
using handtools and brush or feather. Records test results, repairs, adjustments, and related data
on relay history card. May periodically inspect and test relays at functioning points. May test and
repair related equipment, such as telemetering and supervisory-control devices.
GOE: 05.05.05 STRENGTH: L GED: R4 M3 L4 SVP: 7 DLU: 77
ONET CROSSWALK: 83002D Electrical and Electronic Inspectors and Testers
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