TST 103: SEL Feeder Relay Testing

In this course, you will learn the skills required to enter settings, test, commission, and troubleshoot SEL relays.

You will:

• Review skills required to work with SEL relays.
• Learn about specific distribution relay testing considerations.
• Practice the acquired skills by working with different relays throughout the course.
• Gain familiarity with the operating principles of each type of relay.
• Explore the features of SEL relay technology to make appropriate choices when designing test routines.

A variety of SEL relays are used during TST 103, including feeder protection (SEL-751A), transformer protection (SEL-787), and directional overcurrent (SEL-351S) relays.

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Audience

TST 103 is intended for relay technicians or protection engineers and system consultants with an interest in relay testing.

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Agenda

Day 1

• Introduction to Relay Testing
• Overview of acSELerator QuickSet SEL-5030 Software
• SEL-751A Relay Overview
• Introduction to SELogic Control Equations
• SEL-751A Hands-On Testing
• Event Report Analysis

Day 2

• SEL-787 Relay Overview
• Introduction to Differential Testing
• SEL-787 Hands-On Testing
• SEL-787 Hands-On Analysis

Day 3

• SEL-351S Relay Overview (includes a hands-on exercise)
• SEL-351S Hands-On Testing: Part 2
• Negative-Sequence Impedance Directional Element (includes a hands-on exercise)
• SEL-351S Hands-On Analysis

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Learning Outcomes

At the conclusion of this course, students can:

• Establish communications with an SEL relay using QuickSet.
• Enter settings into an SEL relay.
• Equate Relay Word bits and SELOGIC control equations to traditional relay element outputs and discrete contact logic.
• Test, commission, and troubleshoot using metering, sequential events recording, and event reporting features of SEL relays.
• Calculate relay test points based on relay settings.
• Analyze relay response with information recorded by the relay using SEL software.
• Understand differential relay concepts and determine appropriate test values.

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Student Background and Knowledge

Before you attend this class, we recommend that you:

• Complete TST 101: SEL Relay Testing Basics OR have experience testing protective relays.
• Complete CBT 101: Introduction to SEL Relays OR have basic familiarity with protective relaying, SELogic control equations, front-panel controls, and the SEL-4000 Relay Test System.

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Course Preparation

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

• acSELerator QuickSet SEL-5030 Software (include all device drivers during installation).
• SEL-C662 USB driver.
• SEL-787, SEL-751A, and SEL-351S instruction manuals.
• SEL-5401 Software.

In addition, you will need a calculator capable of performing computations involving complex numbers (e.g., TI 30Xa or similar).

Please ensure that your laptop does not have any installation blocks before you come to class.