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Electrical & Electronics Repairers, Powerhouse, Substation, & Relay

Also called: Electrical and Instrumentation Technician (E & I Technician), Relay Technician, Substation Electrician, Substation Technician

Where in the Coast Guard? In the Coast Guard: CWO - Aviation Maintenance Technician; CWO - Electronics Technician, Surface; Electrical Power Production; Electrical Systems; LDO - Electronics, Surface

What they do:
Inspect, test, repair, or maintain electrical equipment in generating stations, substations, and in-service relays.
On the job, you would:
  • Construct, test, maintain, and repair substation relay and control systems.
  • Inspect and test equipment and circuits to identify malfunctions or defects, using wiring diagrams and testing devices such as ohmmeters, voltmeters, or ammeters.
  • Consult manuals, schematics, wiring diagrams, and engineering personnel to troubleshoot and solve equipment problems and to determine optimum equipment functioning.


Engineering and Technology
  • mechanical
  • design
Math and Science
  • arithmetic, algebra, geometry, calculus, or statistics
  • physics
Safety and Government
  • public safety and security
Arts and Humanities
  • English language


Basic Skills
  • thinking about the pros and cons of different ways to solve a problem
  • reading work related information
Problem Solving
  • noticing a problem and figuring out the best way to solve it


  • listen and understand what people say
  • communicate by speaking
Hand and Finger Use
  • keep your arm or hand steady
  • hold or move items with your hands
Ideas and Logic
  • notice when problems happen
  • order or arrange things


People interested in this work like activities that include practical, hands-on problems and solutions.
They do well at jobs that need:
  • Dependability
  • Analytical Thinking
  • Attention to Detail
  • Independence
  • Initiative
  • Stress Tolerance


You might use software like this on the job:

Analytical or scientific software
  • Fluke Corporation FlukeView Forms
  • OMICRON Test Universe
Spreadsheet software
  • Microsoft Excel
Word processing software
  • Microsoft Word


Education: (rated 3 of 5)
certificate after high school or
associate's degree
usually needed

Get started on your career:

Find Certifications Registered Apprenticeship

Job Outlook

Below Average Outlook
New job opportunities are less likely in the future.
per year, on average
Check out my state Local Salary Info Find Jobs

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See more details at O*NET OnLine about electrical and electronics repairers, powerhouse, substation, and relay.