html{display:none} CBT 351: Introduction to SEL-351 Relays | Schweitzer Engineering Laboratories

CBT 351: Introduction to SEL-351 Relays

Single-User Training

CEUs: 0.4
PDHs: 4

Course Base Fees: $240 USD*
* Plus Applicable Tax


Course Information

CBT licenses will expire one year from the purchase date.

Complete training when you want, where you want, without travel time or expenses. CBT 351 is a computer-based course offering out-of-the-box instruction, enabling you to successfully implement, operate, and communicate with SEL-351/S Relays.

CBT 351 is designed as a half-day program but is self-paced.


This course is intended for protection engineers and/or technicians.


  • Getting Started
  • Front- and Rear-Panel Navigation
  • Setting the SEL-351 Relay
  • Programming the Relay
  • Loading Settings
  • Event Reporting
  • Communications
  • Knowledge Check

Course Objectives

At the conclusion of this course, students can:

  • Properly configure relay current and voltage inputs and contact outputs.
  • Simulate SEL-351 front-panel operation using pushbuttons and the LCD display, and interpret the front-panel LEDs.
  • Determine relay settings for phase and ground overcurrent protection, load-shedding, and cold load pickup schemes.
  • Program SELogic control equations, and interpret logic diagrams for customized protection logic.
  • Enter settings using acSELerator QuickSet SEL-5030 Software.
  • Retrieve event data for post-fault analysis.
  • Diagnose problems using meter data and the Sequential Events Recorder.
  • Identify some of the industry-standard protocols used to communicate with the relay.

Student Background and Knowledge

Before you attend this class, we recommend that you have a basic knowledge of power systems.

Available Courses

Single-User Training

SEL University Training Question


Course Preparation

Additional information is on the Course Policies page.