Generator Protective Relay Testing Class

Rated 5.00 out of 5 based on 5 customer ratings
(5 customer reviews)

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

Generator relays are probably the most complex protective relays installed on the electrical system because they have many different elements to protect the generator from various problems. Graduates of this Generator Protective Relay Testing Class will build on the Protective Relay Testing Fundamentals Class and/or Advanced Relay Testing Training Class topics to test these additional elements and relays:

  • Backup Impedance (21)
  • Undervoltage (27)
  • Volts per Hertz (24)
  • Reverse Power (32)
  • Loss of Field (40)
  • Backup Overcurrent (51V)*
  • Negative Sequence (46)
  • Overvoltage (59)
  • Under/Over Frequency (81)
  • Neutral Voltage (27TN/59N)
  • Inadvertent Energization (50/27)*
  • Breaker Fail (50BF)*
  • Synchro relays (25)* 
  • Schweitzer Engineering Laboratories SEL-300G
  • General Electric Multilin SR-489, G-x0
  • Beckwith M-34xx

* Indicates optional topics, depending on students and class requirements.

Who should take this class?

Relay technicians who are comfortable testing overcurrent (50/51), over/under voltage (27/59), over/under frequency (81), impedance (21), and differential (87) elements and want to test any generator relay.

Where do I take this class?

We can bring the Generator 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?

e strongly recommend that all students take the Protective Relay Testing Fundamentals Class and Advanced Relay Testing Training Class first because they contain techniques that even seasoned relay testers may not be familiar with. Otherwise, you should be pre-approved by a Valence instructor.

What topics will be covered?

Day 1 Topics

    • Introduction to generators
      • Testing overvoltage (59)
        • Testing undervoltage (27)
          • Testing under/over frequency (81)
            • Testing impedance (21)
              • Testing voltage controlled / restrained overcurrent (51V)

              Day 2 Topics

                • Testing negative sequence overcurrent (46)
                  • Testing reverse power (32)
                    • Testing loss of field (40)
                      • Testing volts/hertz (24)
                        • Testing inadvertent energization (50/27)

                        Day 3 Topics

                          • Testing differential (87)
                            • Testing neutral overvoltage (59N)
                              • Testing 100% ground protection (27TN)
                                • Testing breaker fail (50BF) * Optional
                                • Testing synchro relays (25) *Optional

                                What kind of credits do I get?

                                The Generator 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 $6,000 to $7,500 USD, depending on your location and number of workstations.

                                The tuition for regional class is $1,250.00-1,850.00 USD, 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.

                                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:

                                5 reviews for Generator Protective Relay Testing Class

                                1. Rated 5 out of 5

                                  Jeff Loy (Electrical Maintenance and Testing)

                                  Valence electrical training services instructors break every generator protection element down into manageable sections. The small classroom sizes make for a good learning environment

                                2. Rated 5 out of 5

                                  Frank Gonzalez, Electric Power Systems

                                  If you test relays, this class is a must. I lacked experience with generator relays and the combination of hands on testing and theoretical knowledge about the elements in test created a seamless transition from the classroom to the field. Outstanding professor with many ways to explain the same thing. I look forward to future classes!

                                3. Rated 5 out of 5

                                  Anonymous Student

                                  Wonderful course that really digs into generation protection while keeping it interesting and informative. The hands on approach really aids in the retaining of knowledge!

                                4. Rated 5 out of 5

                                  Branden – PCA Valence Engineering Technologies

                                  This course is extremely informative and helpful regardless of your relay testing level. 100% would recommend.

                                5. Rated 5 out of 5

                                  Bill @ Palisades Dam

                                  you cant go wrong with their training, it is amazing

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