Date Code 20011112 Manual Change Information i
SEL-311L Instruction Manual
MANUAL CHANGE INFORMATION
The date code at the bottom of each page of this manual reflects the creation or revision date.
Date codes are changed only on pages that have been revised and any following pages affected
by the revisions (i.e., pagination). If significant revisions are made to a section, the date code on
all pages of the section will be changed to reflect the revision date.
Each time revisions are made, both the main table of contents and the affected individual section
table of contents are regenerated and the date code is changed to reflect the revision date.
Changes in this manual to date are summarized below (most recent revisions listed at top).
Revision
Date
Summary of Revisions
The Manual Change Information section has been created to begin a record of revisions to
this manual. All changes will be recorded in this Summary of Revisions table.
20011112 Section 1:
− Updated Optoisolated Input Ratings information in Relay Specifications.
− Corrected references to figures in Section 3 in Relay Element Settings
Ranges and Accuracies.
Section 2:
− Updated table SEL-311L Relay Line Current Differential Electrical
Interface Cable Application.
Section 3:
− Added OPO Open Pole Option (52,27).
− Corrected ETAP setting indicated in Differential Element Settings and
Specifications.
− Updated the following figures: Phase Differential Element 87LA Processing
for Channel X. B and C Phases and Channel Y Are Similarly Processed;
Negative-Sequence Differential Element 87L2 Processing for Channel X.
Channel Y Processing Similar; and Ground Differential Element 87L2
Processing for Channel X. Channel Y Processing Similar.
Section 6:
− Corrected the ETAP setting indicated in Reclosing Relay Shot Counter.
Section 9:
− Updated ORDER default setting text in the Settings Sheets.
Section 10:
− Corrected names of the transmit bits in Front-Panel LED 87LCH FAIL.
− Updated table EIA- 422 Clock Polarity Settings for Popular
Communications Equipment.
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