Beginning July 1, 2023, all registration fees for ElectriCities conferences and trainings are due at the time of registration.

Substation Maintenance School (ELT 221)

Greenville Utilities Commission, Greenville, NC  
Monday, November 18, 2024 - Friday, November 22, 2024   Add to Calendar Eastern Standard Time


The Substation Maintenance School will provide participants with the important components of maintaining a substation’s transformers, relays, and breakers. This school will also provide information on SCADA and communication systems, and Thermography. As always, emphasis on safety and security will be covered.

  • AC and DC Theory
  • Power Transformers and Maintenance Testing
    • Why We Test
    • When We Test
    • What We Test
  • Transformer Oil Sampling and Analysis
  • DGA Sample Guide
  • LTC and Regulators Inspections and Maintenance
  • Protective Relay Fundamentals
  • Substation Circuit Breakers
  • Battery Maintenance and Troubleshooting
  • SCADA and Communications
  • Thermography
  • Substation Safety
  • Substation Security

Students are required to bring Required PPE (hard hat, work gloves, rubber gloves and protectors, ANSI Z87 safety glasses, work boots). Students are encouraged to bring a clean pair of shoes to wear inside the classroom. Those with damaged or defective equipment will be dismissed.


This school is not intended to certify an individual as outlined in (a) (2) (vii) of the 1910.269 Electrical Power Generation Transmission and Distribution Standard.


  • Monday: 1:00 p.m.– 5:00 p.m.
  • Tuesday – Thursday: 8:00 a.m.– 5:00 p.m.
  • Friday: 8:00 a.m.– 12:00 p.m.


  • Members: $849
  • Associate Members: $1199
  • Non-Members: $1749

Price includes workbook, snacks and lunch Monday – Thursday. Class size is limited to 25.

PREREQUISITES: Three years of experience in linework or substation operations.

NASH COMMUNITY COLLEGE: This course is part of the Nash Community College Electric Line Construction Technology Degree program. Successful completion of the ElectriCities Substation Maintenance School grants participants credit for Nash’s “Advanced Line Construction” (ELT 221).

CANCELLATION POLICY: If a course is cancelled by ElectriCities, all registrants will be notified with a full registration fee refund. A non-refundable registration fee will be charged for cancellations after the deadline of November 4, 2024.

Greenville Utilities Commission  

3355 NC Highway 43 N
Greenville, NC 27834-6134

Map & Directions
Total Spots: 25

By registering, you agree to follow the course payment and cancellation policies. You may view them here.

*Payment for all ElectriCities training and conferences are due at registration checkout starting July 1, 2023.*