Protective Relay Testing Fundamentals Classes

5 out of 5 based on 22 customer ratings
(22 customer reviews)

3-Day Class (Tues, Wed, Thurs 8:00 am – 4:30 pm), 24 CEUs

Good relay testers need a solid foundation. Graduates from this Protective Relay Testing Fundamentals Class will understand, and be able to test, the most common functions enabled on any feeder relay such as:

  • Time Overcurrent (51)
  • Instantaneous Overcurrent (50)
  • Overvoltage (59) / Undervoltage (27)
  • CO-x or IAC-xx
  • Schweitzer Engineering Laboratories SEL-351
  • General Electric SR-750

You may think that you, or your team, have been testing relays for a while and will get more benefits from the advanced class, but most relay testers who skipped this class wished they would have started here.

Relay testers are often thrown into the fire with little-to-no training. They figure out a test procedure that works for them and share that knowledge with their colleagues and/or the next generation of relay testers. These test procedures may get the passes you need for your test sheets, but most of the test plans we’ve seen during our years of relay training have weaknesses that fail to find the most common problems that occur in modern relays. In fact, we often find problems with relay settings that are in-service and “tested” at our student’s facilities. We encourage you to honestly answer the questions in the “Who should take this class?” section to see if you are ready to skip this class.

Every class we offer is tailored to the students in the room, which means we don’t have a constant stream of PowerPoint presentations and pre-canned exercises! Every class is unique. You are guaranteed to come away from this class with more knowledge and skills to become a better relay tester. You can read some reviews of previous classes by clicking the Reviews tab above.

Who should take this class?

We recommend that all relay technicians take the Protective Relay Testing Fundamentals Class to ensure that they have a solid foundation before attending any of the other classes. We don’t just discuss the mechanics of the topics listed above; we will review all of the fundamentals that every relay tester should know.

If you can’t confidently answer the questions in the quiz below and apply them to your next relay testing project, you should take this class:

Relay Testing Fundamentals or Advanced Relay Testing Training Class

Where do I take this class?

We can bring the Protective Relay Testing Fundamentals Class to your location. Please request more information with this form.

Don’t have enough personnel to make it cost effective to bring our instructor to you? Contact us to see if we can minimize your costs by creating an open-registration, regional training class near your location.

We periodically offer classes at various locations across the USA with most classes held in Denver, CO. Check the pull-down list at the bottom of this page to see which classes are available for registration, or click here for a calendar of future classes and locations. Don’t see a class near you? Help us pick the best locations for training classes here.

What prerequisites are required?

Prospective students should have a basic understanding of the power system such as Watts, VARs, Ohm’s Law, etc.
If you can’t confidently answer the questions in the quiz below and apply them to your next relay testing project, you should take this class:
Relay Testing Fundamentals or Advanced Relay Testing Training Class

Which topics will be covered?

Day 1 Topics

  1. Introduction to relays
  2. Introduction to test-sets
  3. Introduction to the power system
  4. Overcurrent protection theory (51/51)
  5. How to prepare for relay testing
  6. Testing E-M overcurrent relays
    1. 51 overcurrent pickup testing
    2. 51 overcurrent time testing
    3. 50 overcurrent pickup testing
    4. Target testing

Day 2 Topics

  1. E-M relay target testing
  2. Review E-M relay testing
  3. Testing digital relays
  4. Understanding fault types
  5. Pickup testing options
  6. Testing ground time overcurrent (51N/51G/50N/50G)
  7. Testing phase time overcurrent (51P/50P)
  8. Dynamic testing principles

Day 3 Topics

  1. Digital relay testing review
  2. Digital relay testing practice
  3. Testing overvoltage elements (59)**Optional
  4. Testing undervoltage elements (27)**Optional
  5. Testing under/over frequency elements (27)**Optional
  6. Testing directional overcurrent elements (67) **Optional
  7. Testing synchronizing elements (25) **Optional

What kind of credits do I get?

The Protective Relay Testing Fundamentals Class is eligible for 24 NETA Continuing Technical Development Credits (CTDs). NETA Certified Technicians (Level III and Level IV) are required to earn a minimum of 48 CTDs every three years to maintain their certification. For more information about the CTD program and requirements, please contact the NETA office at or 888-300-6382.

How much does the class cost?

Class at your location ranges from $5,000 to $7,500 USD, depending on the number of workstations required.

The tuition for regional classes range from $1,250.00 to $1,850 USD, depending on your test-set requirements and includes all class materials and lab relays.

We do not charge tax on training classes.

Students are responsible for all travel, accommodation, and meal expenses.

Why are there so many options? / What option should I choose when I enroll?

All of our classes are organized by workstations that include:

  • A maximum of two students (We’ve found that two students working together learn more than a single student)
  • A relay that we supply
  • A test-set, test leads, communication cables, and tools supplied by one of the students for a workstation
  • A laptop and calculator supplied by each student at the workstation.

Some students have a test-set and prefer to work alone. We offer the “I’m bringing a test-set for my personal use” price option for those students. Their price is higher because we have a limited number of workstations and won’t be able to fill the class to capacity if no-one shares.

Some students have a test-set and are willing to share. We offer the “I’m bringing a test-set that I’m willing to share” price option for those students. Their price is lower because we will be able to enroll more students with people who pick this option.

Some companies want to send two students with a test-set to share a workstation. We offer the “Two students sharing a test-set” price for them.

Students who can’t bring their own test-set should choose the “I don’t have a test-set” option. We’ll arrange the class so that you can share a workstation with another student using the same brand of test equipment. Their price is higher to make the “bring a test-set and share” option more attractive.

We will look at all of the student enrollments and contact each of you to confirm your selections before we finalize the class. Feel free to contact us if you have a special situation.

Can I cancel?

You can cancel with no penalty up to 60 days before the class start date. Substitutions may be made at no charge. We can work with you to find a substitution, if you require one.

What should I bring?

Students should treat this class as an actual relay testing job and bring all of the equipment they would normally use on the job, including:

  • their laptop computer
  • up-to-date test-set software
  • up-to-date SEL software
  • test-set
  • test leads
  • tools
  • communication cables to talk to the test-set
  • communication cables to talk to SEL relays
  • their favorite calculator

We can supply some of these items upon request, but we strongly recommend that you bring the equipment you will use in the real world to be sure that you can apply what you learn with us during your day-to-day activities. We also recommend bringing example drawings and relay settings to use in class.

When do I make my travel arrangements?

We reserve the right to cancel or change any class before an official confirmation notice is sent to you. Do not make any fully non-refundable travel arrangements until you receive a confirmation from us, usually 4 weeks from the first day of class.

We also have the following protective relay testing classes available. Click on any link to learn more:

22 reviews for Protective Relay Testing Fundamentals Classes

  1. 5 out of 5


    Best relay testing courses out there I know of. The instructor have extensive field experience, thorough understanding of power system theories and years of teaching experience. For someone with power system fundamentals but new to the relay testing field, the “Basic Protective Relay Testing Course” would be a very good starting point. You could learn not only how to conduct a relay test but also the ins and outs behind each step/setting/parameter etc.

  2. 5 out of 5


    Take the time to utilize this small class setting and ask as many questions as possible.

  3. 5 out of 5


    I would recommend taking the course at your work site in small groups as the one on one instruction was very valuable and the course was able to be tailored to our specific company needs. This also allowed plenty of time for questions and open discussion.

  4. 5 out of 5


    Absolutely take advantage of this course as there is a wealth of information to be obtained not only from the course material but the instructor as well.

  5. 5 out of 5


    This is a great class; even if you have little to no experience with relays. Chris can really break things down to the most basic level. Great instruction. Great class.

  6. 5 out of 5


    Anyone needing to test relays will benefit from this course. The instructor is very knowledgeable about all relays and test sets. He teaches you how to use the equipment you will use in the real world, and any possible issues that may arise from a particular test set.

  7. 5 out of 5


    Chris has an incredible amount of knowledge and experience which he shares as he teaches the theory and practical methods of Relay testing. These experiences are so valuable weather you are new or an experienced veteran of relay testing. You get theory and then the opportunity to set up different testing situations to apply and prove the lessons, you can experiment with the circuits and tester until you are proficient. Regardless of the brand of tester, Chris is there to assist and offer advice until you comfortable with the testing circuit and the testers available functions. Excellent opportunity to learn the strengths and weaknesses of different brands of relay test sets. Chris has a natural talent for teaching!

  8. 5 out of 5


    This course is fantastic for all who look to gain a better understanding of how relays work, as well as how to test these relays.

  9. 5 out of 5


    Chris was an excellent instructor. For an inexperienced tester like myself, he made it easy to follow and understand. I was never bored once in the 3 days. I had never used the doble or the software before, and now I’m confident I have a great base to continue my learning.

  10. 5 out of 5


    This class was a very good mix of the theory behind relay testing and hands on application. I would recommend this course to anyone who is interested in learning about relay testing or anyone who is looking for a refresher course in the basics.

  11. 5 out of 5


    Great hands on training with a detailed visual guide. Chris’ experience in the field allows him to bring real world application to the classroom. The hands on training keeps you engaged and helps you understand the theory of operation. I can’t wait to participate in the advanced course in the upcoming weeks.

  12. 5 out of 5


    Take this course to get familiar with testing relays.

  13. 5 out of 5


    Chris does a great job ! It is very obvious he has a lot of knowledge, backed up by experience. His patience, and dynamic personality, made for a comfortable learning environment.

    I would definitely recommend his classes.

  14. 5 out of 5


    This course is a vital look into not just relay testing, but how the relay operates in a system. The information offered in this course will cut time spent researching relays and developing test plans.

  15. 5 out of 5


    an introductory course in relay testing and calibration, the topics covered provide clear understanding and methodology involved in testing older electromechanical relays as well as newer, more advanced relays.

  16. 5 out of 5


    Learn how to properly test relays to operate as anticipated for the intended protection scheme.

  17. 5 out of 5


    If you are having trouble understanding basic fundamentals of relays , this class is taught by an experienced engineer who can succesfully explain what is going on and how to understand it

  18. 5 out of 5


    Chris is extremely knowledgeable and experienced. He has seen almost every mistake that can be made in the protection and control game. This course will provide you with a great step by step guide to testing. Not only will you have a good guide, but you will understand WHY you are doing that step.

  19. 5 out of 5


    I would advise future prospective students to at least review the online courses outline but most of all to complete the online courses prior to attending the hands on training as you may think you are further advanced than you really might be. It holds up other students who are more experienced and advanced even if only after following the systematic layout of how the online courses roll into the hands on training.

  20. 5 out of 5



  21. 5 out of 5


    Come prepared to relay learn how to test relays manually!

  22. 5 out of 5


    I’ve taken many relay courses around the country and your courses are by far the best one I’ve been in.

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