Protective Relay Maintenance, Solid-State (PRMSS)

Open Enrollment and Onsite Availability

Protective Relay Maintenance, Solid-State | Hands-On Certification Training Course

4.5-Day | 3.6 CEUs | $1,885 | Hands-on | Course #270 | 8 am-4:30 pm (final day ends at noon) 

Through proper maintenance and testing, technicians can help ensure the integrity of the protection system and ensure service continuity. This intensive hands-on course is designed specifically for test technicians responsible for the setting, testing, and calibration of solid-state protective relays. The somewhat specialized testing procedures used to test and calibrate these relays will be fully addressed through valuable theoretical operating explanations and rigorous lab exercises.

The participant will learn the basics of substation protection combined with hands-on, realistic training on actual relays.  Laboratory exercises will cover proper relay maintenance, specific test procedures, and detailed adjustment and calibration procedures utilizing state of the art relay test sets. Participants will understand applicable NETA testing standards, what test result information should be recorded, and what hand tools are necessary for proper relay adjustment and calibration.

Learning Objectives

  • Identify the type of relay and its functions
  • Interpret internal and external AC and DC schematics
  • Properly connect a relay test set to the relay for testing purposes
  • Perform the field tests and calibrate the tested relay as necessary
  • Properly interpret test results and take corrective action if necessary
  • Understand test forms and keep proper records

This course is an intensive, hands-on, lab oriented class covering:

  • Sync Check Relay (25)
  • Voltage Relays (27/59)
  • Directional Power (32R)
  • Overcurrent (50/51)
  • Directional Overcurrent (67)
  • Transformer Differential (87T)

The student should have basic knowledge of AC/DC electricity. In addition, students must bring a scientific calculator. Technicians that successfully complete this course will be certified to maintain solid-state relays. This certification is valid for 3 years from the date of issue.


This course is required for our Solid-State Protective Relay Maintenance Technician Certification Program.


Course Duration: 4.5 days
Credits: 3.6 CEUs
Level of Involvement: Hands-on
Schedule: 8:00am – 4:30pm, the final day ends at 12:00pm
Course Number: 270
Tuition USD: $1,885


Need more information or interested in an On-Site Quote for this course? 
CLICK HERE to contact your AVO Account Executive or you can call us directly at 877-594-3156

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