Substation Test Technician

Substation Test Technicians inspect, test, repair, or maintain electrical equipment in generating stations, substations, and in-service relays.

Personal requirements of a Substation Test Technician may include:

  • Ability to problem solve
  • Excellent communications and interpersonal skills
  • Good maths and science
  • Excellent computer skills

Substation Test Technicians may complete the following tasks:

  • 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 in order to troubleshoot and solve equipment problems and to determine optimum equipment functioning
  • Prepare and maintain records detailing tests, repairs, and maintenance
  • Repair, replace, and clean equipment and components such as circuit breakers, brushes, and commutators
  • Open and close switches to isolate defective relays; then perform adjustments or repairs
  • Analyze test data in order to diagnose malfunctions, to determine performance characteristics of systems, and to evaluate effects of system modifications
  • Notify facility personnel of equipment shutdowns
  • Test insulators and bushings of equipment by inducing voltage across insulation, testing current, and calculating insulation loss
  • Construct, test, maintain, and repair substation relay and control systems
  • Disconnect voltage regulators, bolts, and screws, and connect replacement regulators to high-voltage lines
  • Schedule and supervise the construction and testing of special devices and the implementation of unique monitoring or control systems
  • Run signal quality and connectivity tests for individual cables, and record results
  • Maintain inventories of spare parts for all equipment, requisitioning parts as necessary
  • Schedule and supervise splicing or termination of cables in color-code order
  • Test oil in circuit breakers and transformers for dielectric strength, refilling oil periodically
  • Set forms and pour concrete footings for installation of heavy equipment

This job requires an electrical apprenticeship or traineeship.