APP 651R: SEL-651R Advanced Recloser Control

Course Length: 2 Days (PDHs: 15)
Course Based Fees: $1,000*
* Plus Applicable Tax


APP 651R is designed to empower students to apply SEL-651R-2 and SEL-651RA Advanced Recloser Controls for distribution system protection. At the end of this course, students will be able to set and test the SEL-651R for typical distribution protection schemes and use SELogic control equations to customize the operator interface and build advanced protection schemes. Students (in groups of two) will work directly with the SEL-651R, performing hands-on communications, settings, and testing.


This course is designed for utility and industrial protection engineers and power system consultants.


Day 1

  • SEL-651R Advanced Recloser Control Overview
  • Front-Panel Human Machine Interface (HMI)
  • 32-Pin Design Template
  • Class Exercise: Single- and Three-Pole Tripping
  • Protection Elements and Logic
  • Class Exercise: Reclosing

Day 2

  • Class Exercise: Adding Instantaneous Tripping to Hot Line Tag Logic
  • Voltage-Based Protection
  • Commissioning
  • Recloser Interface and Troubleshooting
  • Battery Monitoring and Troubleshooting (with exercise)
  • OPTION A: Logic Track*
    • Detecting High-Side Blown Fuse Conditions (with exercise)
    • Class Exercise: Enhanced Close Pushbutton Logic
    • Concurrent Curves and Second-Harmonic Blocking (with exercise)
  • OPTION B: Distributed Energy Resource (DER) Track*
    • Advanced Voltage-Based Protection
    • Class Exercise: Developing SEL-651R-2 Settings for Distributed Generation Protection at the Point of Common Coupling

*The instructor will select Option A or Option B based on the audience.

Learning Outcomes

At the conclusion of this course, students will be able to:

  • Use acSELerator QuickSet SEL-5030 Software and Design Templates to build protection and automation schemes.
  • Explain how individual protection elements work.
  • Describe how to test individual protection elements.
  • Implement SELogic elements and syntax in the testing of custom logic schemes.
  • Commission a new SEL-651R.
  • Troubleshoot the SEL-651R battery and recloser interface systems.

Student Background and Knowledge

To be prepared for APP 651R, please complete the free online course CBT 101: Introduction to SEL Relays before attending class. It will introduce how an SEL relay processes digital inputs, analog inputs, digital outputs and targets; how to use QuickSet configuration software; and how SELogic control equations are used for basic relay settings and behavior.

We also recommend that you:

Course Preparation

Install or update the following software/files on the laptop you are bringing to class:

Please work with your company's IT resources to ensure that these updates are made prior to class so that you will be able to participate with the class exercises.

Additional information is on the Course Policies and FAQ pages.

Available Courses

Request onsite training for your company.