CBT 751: Introduction to the SEL-751/A Feeder Protection Relays

Course Length: 3 Hours (PDHs: 3)
Course Based Fees: $180*
* Plus Applicable Tax


CBT 751 provides training for the SEL-751 and SEL-751A Feeder Protection Relays, which are extremely versatile protective relays used worldwide for industrial and utility feeder protection. This self-paced training provides an introduction to feeder protection using the SEL-751, including front-panel navigation and displays, acSELerator QuickSet SEL-5030 Software, relay logic, and arc-flash detection. Learn basic feeder protection principles, and apply recommended settings for comprehensive overcurrent protection.

Use CBT 751 as standalone training covering the basics of SEL-751 Feeder Protection Relay operations, protection functions, and settings. This training also prepares you for attending APP 751, a two-day, hands-on application course.


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


  • Relay Overview and Front-Panel Menu Practice
  • Using acSELerator QuickSet Software
  • Feeder Protection Principles, Device Coordination, Phase and Neutral Overcurrent, and Underfrequency Protection Settings
  • Arc-Flash Detection
  • Relay Logic Introduction, Using Expression Builder, Creating Display Points
  • Protocols and Remote Communications
  • Knowledge Assessment

Learning Outcomes

At the conclusion of this course, students can:

  • Demonstrate navigation of relay settings and features.
  • Enter power system protection and logic settings using QuickSet.
  • Apply neutral overcurrent protection settings.
  • Implement a secure arc-flash detection system.
  • Apply and practice SELogic using best practices.
  • Create a settings file, and send settings to the relay.
  • Retrieve event report data.

Student Background and Knowledge

Before you attend this class, we recommend that you have a basic familiarity with SEL relays and electric power system protection.

Additional information is on the Course Policies and FAQ pages.

Available Courses