Table Of Contents - Schweitzer Engineering Laboratories SEL-267D Instruction Manual

INTRODUCTION
Getting Started ......................................................................................................................... 1-1
Overview .................................................................................................................................. 1-1
Basic Protective Capabilities .................................................................................................... 1-2
General Information .................................................................................................................. 1-3
SPECIFICATIONS
Relay Standards and Input Parameters....................................................................................... 2-1
Detailed Specifications.............................................................................................................. 2-3
Hardware Description ............................................................................................................... 2-5
Signal Processing...................................................................................................................... 2-6
Inputs and Outputs.................................................................................................................... 2-6
Definition of Logic Variables ................................................................................................ 2-10
Logic Description.................................................................................................................. 2-11
Intermediate Logic ................................................................................................................ 2-13
Relay Word ......................................................................................................................... 2-14
Output Equations .................................................................................................................. 2-15
Reclosing Relay .................................................................................................................... 2-17
Targets ................................................................................................................................. 2-17
Self Tests ............................................................................................................................. 2-18
Setting Procedure.................................................................................................................. 2-20
Event Report ........................................................................................................................ 2-21
Fault Locator ....................................................................................................................... 2-21
Directional Elements ............................................................................................................. 2-24
Time-Overcurrent Elements and Curves................................................................................. 2-25
Time-Overcurrent Curve Equations ....................................................................................... 2-36
Logic Diagrams .................................................................................................................... 2-31
COMMUNICATIONS
Introduction .............................................................................................................................. 3-1
Serial Port Connections and Configurations ............................................................................... 3-2
Communications Protocol.......................................................................................................... 3-2
Command Characteristics.......................................................................................................... 3-4
Command Descriptions ............................................................................................................. 3-6
Command Summary.............................................................................................................. 3-23
Date Code 950829

TABLE OF CONTENTS

Table of Contents
SEL-267D Instruction Manual
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