Schweitzer Engineering Laboratories SEL-311C - Table of Contents

Date Code 20060320 Instruction Manual SEL-311C Relay
Table of Contents
List of Tables ....................................................................................................................................................... xi
List of Figures.................................................................................................................................................... xv
Preface................................................................................................................................................................. xxi
Manual Overview ............................................................................................................................................ xxi
Page Numbering .................................................................................................................................... xxiv
Conventions .................................................................................................................................................... xxv
Typographic Conventions ....................................................................................................................... xxv
Examples ................................................................................................................................................ xxv
Safety Information ................................................................................................................................. xxvi
Section 1: Introduction & Specifications
Overview ......................................................................................................................................................... 1.1
SEL-311C Models ........................................................................................................................................... 1.2
Applications..................................................................................................................................................... 1.3
AC/DC Connections ........................................................................................................................................ 1.4
Dual Terminal Labels .............................................................................................................................. 1.4
Output Contacts ....................................................................................................................................... 1.6
Communications Connections......................................................................................................................... 1.8
Specifications ................................................................................................................................................ 1.10
Section 2: Installation
Relay Mounting............................................................................................................................................... 2.1
Front- and Rear-Panel Diagrams ..................................................................................................................... 2.2
Making Rear-Panel Connections................................................................................................................... 2.12
Wire-Alike Screw Terminal Connections .............................................................................................. 2.12
Power Supply ........................................................................................................................................ 2.12
Output Contacts ..................................................................................................................................... 2.12
Optoisolated Inputs ............................................................................................................................... 2.14
Current Transformer Inputs ................................................................................................................... 2.14
Potential Transformer Inputs ................................................................................................................. 2.14
Wye-Connected Voltages ...................................................................................................................... 2.14
Serial Ports ............................................................................................................................................ 2.14
IRIG-B Time-Code Input ...................................................................................................................... 2.15
SEL-311C AC/DC Connection Diagrams for Various Applications............................................................. 2.16
Circuit Board Connections ............................................................................................................................ 2.19
Accessing the Relay Circuit Boards ...................................................................................................... 2.19
Output Contact Jumpers ........................................................................................................................ 2.23
“Extra Alarm” Output Contact Control Jumper ....................................................................................2.23
Password and Breaker Jumpers ............................................................................................................. 2.24
EIA-232 Serial Port Voltage Jumpers ................................................................................................... 2.25
Clock Battery ......................................................................................................................................... 2.25
Section 3: Distance, Out-of-Step, Overcurrent, Voltage, Synchronism Check, and
Frequency Elements
Distance Elements ........................................................................................................................................... 3.1
Mho Phase Distance Elements ................................................................................................................ 3.1
Ground Distance Elements .................................................................................................................... 3.10
Distance Element Operating Time Curves at Nominal Frequency ............................................................... 3.16
Additional Distance Element Supervision ............................................................................................ 3.19
Zone 1 Extension ................................................................................................................................... 3.19
Zone Time Delay Elements ................................................................................................................... 3.20