Date Code 20020501 SEL-421/SEL-421-1 Relay
Table of Contents
List of Tables ....................................................................................................................................................... ix
List of Figures.................................................................................................................................................xxiii
List of Equations..........................................................................................................................................xxxiii
List of Examples..........................................................................................................................................xxxvii
Manual Change Information.................................................................................................................... xxxix
Preface..................................................................................................................................................................xli
User’s Guide
Section 1: Introduction and Specifications
Features........................................................................................................................................................ U.1.2
Models and Options..................................................................................................................................... U.1.5
Applications................................................................................................................................................. U.1.6
Specifications ............................................................................................................................................ U.1.11
Section 2: Installation
Shared Configuration Attributes.................................................................................................................. U.2.2
Plug-In Boards........................................................................................................................................... U.2.12
Jumpers...................................................................................................................................................... U.2.17
Front-Panel Labels..................................................................................................................................... U.2.26
Relay Placement ........................................................................................................................................ U.2.31
Connection................................................................................................................................................. U.2.33
AC/DC Connection Diagrams................................................................................................................... U.2.47
Section 3: PC Software
Installing the Computer Software................................................................................................................ U.3.2
Communications Setup................................................................................................................................ U.3.4
Settings Database Management and Drivers............................................................................................... U.3.6
Create and Manage Relay Settings.............................................................................................................. U.3.9
Expression Builder .................................................................................................................................... U.3.13
Analyze Events.......................................................................................................................................... U.3.15
HMI Meter and Control............................................................................................................................. U.3.19
Section 4: Basic Relay Operations
Inspecting a New Relay............................................................................................................................... U.4.2
Connecting and Applying Power................................................................................................................. U.4.4
Establishing Communication....................................................................................................................... U.4.5
Changing the Default Passwords................................................................................................................. U.4.8
Checking Relay Status............................................................................................................................... U.4.12
Making Simple Settings Changes.............................................................................................................. U.4.15
Examining Metering Quantities ................................................................................................................ U.4.31
Reading Oscillograms, Event Reports, and SER....................................................................................... U.4.39
Operating the Relay Inputs and Outputs ................................................................................................... U.4.52
Configuring High-Accuracy Timekeeping................................................................................................ U.4.66
Readying the Relay for Field Application................................................................................................. U.4.72
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