Substation Maintenance Technician

Substation Maintenance Technician


Substation maintenance is a key part of any plant's maintenance program. Failures in key components such as racking mechanisms, meters, relays and busses are the most common cause of unplanned outages. Transmission, distribution and switching substations generally have switching, protection and control equipment and one or more transformers. Having skilled substation maintenance technicians is essential to equipment reliability. This certification program will qualify technicians to safely maintain the wide array of equipment in a substation. What is certification? Certification means you have achieved certain performance criteria - knowledge, skills and abilities through training. Certifications prove your skills, and their value is the recognition of customers, coworkers and employers. This certification also meets the requirements of OSHA 29 CFR 1910.269(a)(2)(vii).


  • Substation types, applications, components and safety procedures
  • Medium-voltage circuit breaker maintenance and testing methods
  • Perform insulation resistance, contact resistance on air, oil and vacuum breakers, and tank loss index on oil circuit breaker and vacuum bottle integrity tests on vacuum breaker
  • Switchgear arrangement, torque requirements, insulation systems and maintenance intervals
  • Perform switchgear inspection and maintenance in lab
  • Battery types, applications, systems and components
  • Perform battery maintenance and testing in lab
  • Air and disconnect switch fundamentals, maintenance and testing methods
  • Perform air disconnect maintenance and testing in lab
  • Ground testing fundamentals, maintenance and testing methods
  • Perform ground resistance testing in lab
  • Transformer fundamentals, maintenance and testing methods
  • Perform insulation resistance, transformer turns ratio (TTR), power/dissipation factor, core excitation, winding resistance and a wide range of insulating liquid tests in lab
  • Electrical hazards and safety procedures for working on/around metal-clad switchgear, substations, motor control centers and facility electrical systems
  • In-service care and use of required personal protective equipment
  • Energized and de-energized work procedures such as minimum approach distances and lockout/tagout requirements
  • Temporary and permanent grounding systems and specific equipment hazards
  • Overview of OSHA 29 CFR 1910.331-335, .269, .303, .137 and .147


This certification requires completion of 3 of the 4 courses listed below which may be completed in any order within an 18 month period. The certification will be valid for 3 years from the date of issue. In order to meet the safety requirements, this certification requires completion of the electrical safety for utilities OR industrial facilities course - not both. Substation Maintenance I 4.5 days, 3.2 CEUs Substation Maintenance II 4.5 days, 3.2 CEUs Electrical Safety for Industrial Facilities 4 days, 2.8 CEUs Electrical Safety for Utilities 4 days, 2.8 CEUs

Electrical Safety for Industrial Facilities
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Electrical Safety for Utilities
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Substation Maintenance I
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Substation Maintenance II
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