CBT 104: Understanding SEL Relay Logic

This complimentary eLearning course teaches you how to read, set, and test SEL relay logic as you identify Relay Word bits and SELogic operators and visually interpret diagrams. You will learn to equate relay protection functions with logic diagrams and see how relay logic assigns protective elements to output contacts for control, monitor, and trip functions.

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Audience

This course is intended for engineers, technicians, and consultants new to SEL relays or logic programming.

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Agenda

• Introduction
• Relay Logic Basics
• Visualizing Logic
• Settings and Logic
• Testing Relay Logic
• Event Analysis and Logic
• Knowledge Check

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Learning Outcomes

At the conclusion of this course, students can:

• Correlate Relay Word bits with settings and protection functions.
• Visually identify logic components.
• Differentiate between settings and logic.
• Analyze logic diagrams.
• Interpret logic using a relaying schematic.
• Use acSELerator QuickSet SEL-5030 Software to convert and visualize logic.
• Diagnose problems using event data and logic.

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Student Background and Knowledge

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