• Powerhouse, Substation, and Relay Electrical and Electronics Repairers
  • Manufacturing
  • Powerhouse, substation, and relay electrical and electronics repairers inspect, test, repair, or maintain electrical equipment in generating stations, substations, and in-service relays.

What do they typically do

  • 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 staff to troubleshoot and solve equipment problems and to determine best equipment functioning
  • Notify facility personnel of equipment shutdowns
  • Open and close switches to isolate defective relays, performing adjustments or repairs
  • Prepare and maintain records detailing tests, repairs, and maintenance
  • Analyze test data to diagnose malfunctions, determine system performance characteristics, or evaluate effects of system modifications
  • Test insulators and bushings of equipment by inducing voltage across insulation, testing current, and calculating insulation loss

Number of Jobs

Average Annual
Job Growth +0.5%
Job Opening 123

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Education & Training


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Video:Powerhouse, Substation, and Relay Electrical and Electronics Repairers

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