Electrical and Electronics Repairers, Powerhouse, Substation, and Relay: Career & Application Guide

What do electrical and electronics repairers, powerhouse, substation, and relay do?

Inspect, test, repair, or maintain electrical equipment in generating stations, substations, and in-service relays.

This describes a U.S. occupation, not a live vacancy. Individual employers may use different titles and requirements.

Job titles to recognize in your search

O*NET reports these titles for this occupation. Compare the responsibilities in each posting before treating titles as equivalent.

Electrical and Instrumentation Technician (E and I Technician)
Electrical Technician
Instrument and Control Technician (I and C Technician)
Instrumentation and Control Technician (I and C Technician)
Relay Technician
Substation Electrician
Substation Mechanic
Substation Technician

Core tasks to compare with a job posting

Inspect and test equipment and circuits to identify malfunctions or defects, using wiring diagrams and testing devices such as ohmmeters, voltmeters, or ammeters.
Prepare and maintain records detailing tests, repairs, and maintenance.
Consult manuals, schematics, wiring diagrams, and engineering personnel to troubleshoot and solve equipment problems and to determine optimum equipment functioning.
Analyze test data to diagnose malfunctions, to determine performance characteristics of systems, or to evaluate effects of system modifications.
Open and close switches to isolate defective relays, performing adjustments or repairs.
Notify facility personnel of equipment shutdowns.
Repair, replace, and clean equipment and components such as circuit breakers, brushes, and commutators.
Run signal quality and connectivity tests for individual cables, and record results.
Maintain inventories of spare parts for all equipment, requisitioning parts as necessary.

Prepare an application for this occupation

Check the employer’s requirements, location, schedule and any licenses against your situation.
Choose two or three tasks above that match the posting and your actual experience.
Build a resume evidence worksheet using the skills and software relevant to that employer.
Practice explaining your contribution, decisions and results before an interview.

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