1-4
Introduction and Specifications
Date Code 20011112
SEL-311L Instruction Manual
The Settings Sheets can be photocopied and filled out to set the SEL-311L Relay.
Note that these sheets correspond to the serial port
SET
commands listed in
Table 9.1.
See
Section 14
for a description of Application Settings APP = 87L, 87L21, and
87L21P.
•
Two terminal with tapped load settings example
Section 10: Line Current Differential Communications and Serial Port Communications and
Commands
describes:
•
87L communications interfaces, channel monitors, and associated settings
•
Serial port connector pinout/terminal functions
•
Communications cables
•
Communications protocol
•
Serial port commands
See
SHO Command (Show/View Settings)
in
Section 10
for a list of the
SEL-311L Relay factory default relay settings.
Section 11: Front-Panel Interface
describes the operation of:
•
Pushbuttons and correspondence to serial port commands
•
Local control switches (local bit outputs LB1 through LB16)
•
Rotating default displays and display points
Section 12: Standard Event Reports and SER
describes:
•
Standard 15-, 30-, and 60-cycle event reports for line current differential and
backup protection
•
Event summaries
•
Sequential events recorder (SER) report
Section 13: Testing, Troubleshooting, and Commissioning
describes:
•
General testing philosophy, methods, and tools
•
Alpha plane 87L element test procedures
•
Relay self-tests and troubleshooting
•
87L channel troubleshooting
•
Commissioning
Section 14: Applications Settings for SEL-311L Relays
•
Settings Sheets for the 87L, 87L21, and 87L21P applications
Summary of Contents for SEL-311L
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