Motor Protective Relay Testing Class

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

Motor protective relays could be the most common relay found at any industrial site and they have very specific protection features because of the induction motor’s unique operating characteristics. Graduates of this class will build on the Protective Relay Testing Fundamentals Class and/or Advanced Relay Testing Training Class topics and will be able test these additional elements and relays:

  • Overload (49)
  • Start Blocking
  • Mechanical Jam
  • Acceleration Trip
  • Unbalanced Overcurrent
  • RTD Testing
  • Schweitzer Engineering Laboratories SEL-701 or SEL-749
  • General Electric Multilin SR-x69

Who should take this class?

Relay technicians that are comfortable testing overcurrent (51/51), over/under voltage (27/59), and over/under frequency (81) elements who want to test motor protection relays. We strongly recommend that all students take the Protective Relay Testing Fundamentals Class first because it contains techniques that even seasoned relay testers may not be familiar with.

Where do I take this class?

We can bring the Motor Protective Relay Testing 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.

What prerequisites are required?

Prospective students should have completed the Protective Relay Testing Fundamentals Class, or have been approved by a Valence instructor.

What topics will be covered?

Day 1 Topics

  1. Introduction
  2. Meter testing
  3. Overload trip protection (49T)
  4. Overload alarm protection (49A)
  5. Starts per hour/time between starts blocking
  6. Mechanical jam protection
  7. Acceleration trip protection

Day 2 Topics

  1. Previous day review
  2. Unbalance alarm
  3. Unbalance trip
  4. Short circuit protection (50)
  5. Ground fault alarm protection (50G)
  6. Ground fault trip protection (50G)

Day 3 Topics

  1. Previous days review
  2. Differential protection (87)
  3. Overvoltage protection (59)
  4. Undervoltage protection (27)
  5. Over frequency protection (81)
  6. Under frequency protection (81)
  7. RTD protection

What kind of credits do I get?

The Motor Protective Relay Testing 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 [email protected] or 888-300-6382.

How much does the class cost?

Classes at your location range from $5,000 to $7,500 USD, depending on your location and number of workstations.

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:


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