APP 351: SEL-351 Protection System

APP 351 provides comprehensive application training for the SEL-351 Protection System, an extremely flexible protective relay used by utilities worldwide, in multiple applications. Working in groups of two, students gain hands-on experience in communicating, setting, metering, monitoring, retrieving event reports, and performing control functions by working directly with the SEL-351S Relay.

Audience

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

Agenda

Day 1

• SEL-351 Relay Family Overview
• SEL-4000 Relay Test System: SEL-AMS and SEL-5401 Software
• Using acSELerator QuickSet SEL-5030 Software With the SEL-351S
• Front-Panel Targets and Display
• SELogic Control Equations (includes a hands-on exercise)
• Relay Settings Overview
• Overcurrent Elements
• Best Choice Ground Directional Element
• Voltage and Frequency Elements
• Relay Logic and Settings

Day 2

• SEL-351S Front-Panel Large Operator Controls (includes a hands-on exercise)
• Hands-On Exercise: Part 1
• Breaker Monitor
• Retrieving, Understanding, and Analyzing Event Report Information
• Optional:
• Mirrored Bits Communications (includes a hands-on exercise)
• Data Acquisition and Control Via Distributed Network Protocol (DNP)
• SEL-351R Recloser Control
• Hands-On Exercise: Part 2

Learning Outcomes

At the conclusion of this course, students can:

• Apply the SEL-351S Relay protection, monitoring, and control features.
• Communicate with the relay through the front panel and serial port.
• Use QuickSet to apply relay settings, program SELogic control equations, and analyze fault records and the relay element response.
• Analyze Sequential Events Recorder (SER) reports.
• Implement relay-to-relay logic communications via the Mirrored Bits communications protocol.
• Identify multiple applications for the SEL-351 Relay family.
• Differentiate between SEL-351, SEL-351A, and SEL-351S Relay features.

Student Background and Knowledge

Before you attend this class, we recommend that you:

• Have basic familiarity with protective relaying, SELogic control equations, QuickSet, front-panel controls, and the SEL‑4000 Relay Test System.
• Have the ability to set up relay communications using acSELerator QuickSet SEL-5030 Software.
• Complete CBT 101: Introduction to SEL Relays (highly recommended).

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-351 instruction manual.
• SEL-5401 Software.

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