This Electrical Substation Maintenance training course will cover the maintenance and testing requirements for common substation devices, including power transformers, oil, air and vacuum circuit breakers, switchgear, ground grid systems, batteries, chargers and insulating liquids. This course focuses on what to do, when to do it and how to interpret the results from testing and maintenance.

Electrical Substation maintenance is a key component of any substation owner’s electrical maintenance program. It has been well
documented that failures in key procedures such as racking mechanisms, meters, relays and busses are among the most common source of unplanned outages. Electrical transmission, distribution and switching substations generally have switching, protection and control equipment and one or more transformers. Our electrical substation maintenance course focuses on maintenance and testing of switchgear, circuit breakers, batteries and protective relays.


  • Session 1: Substation Overview
  • Session 2: Air and Disconnect Switches
  • Session 3: Circuit Breaker Maintenance and Testing
  • Session 4: Switchgear Maintenance and Testing
  • Session 5: Transformer DC and AC Testing
  • Session 6: Transformer Oil Testing
  • Session 7: Transformer Gas Testing
  • Session 8: Current and Voltage Transformers
  • Session 9: Ground Testing
  • Session 10: Battery Maintenance and Testing
  • Session 11: Overview of Protective Relays

• Substation types, applications, components and safety procedures
• Maintenance and testing methods for medium-voltage circuit Breakers
• How to 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
• How to perform switchgear inspection and maintenance in lab
• Battery types, applications, systems and components
• Perform battery maintenance and testing in lab

• Utility and Industrial Electrical Engineers and Engineering Technicians
• Transmission planning engineers
• Distribution planning engineers
• Substation Design Engineers
• Consulting Electrical Engineers
• Substation network management engineers
• Substation maintenance and construction engineers & technologists

Program Details: