A-10 Firmware and Manual Versions Date Code 20080110
SEL-387E Instruction Manual
Revision
Date
Summary of Revisions
Section 9
− Removed remote bits from Table 9.6: Differential Event Report Element Columns.
Section 10
− Added harmonic restraint function necessitating changes to text.
− Corrected typographical errors.
Appendix A
− Updated for new firmware versions.
Appendix B
− Replaced the appendix with a revised, more comprehensive version.
Appendix D
− Corrected typographical errors.
Appendix G
− Added harmonic restraint function necessitating changes to Binary Input Table.
− Changed Relay Word bit !ALARM to NOTALM necessitating changes in the Binary Input Table.
This manual differs from the previous versions as follows:
20010906 Section 3
− Removed 32IOP as input to “REF Directional Element” logic AND gate. With 32IOP removed as an
input, the AND gate only uses 32IE and 50GC as inputs. Changed 50GP multiplier from 0.9 to 0.8 in
50GC logic (Figure 3.8 and Figure 3.9).
− Clarified voltage settings.
Appendix A
− Updated for new firmware versions information.
This manual differs from the previous versions as follows:
20010521 Manual reissue.
Section 1
− Made typographical changes under Model Options and in Specifications.
Section 2
− Updated front- and rear-panel drawings, rearranged some text, added description of a four-position
prewired connector for PT wiring.
Section 3
− Changed the title to Section 3: Differential, Restricted Earth Fault, Overcurrent, Voltage, and
Frequency Elements.
− Moved overcurrent element application guidelines and descriptions of differential and overcurrent
elements from Section 6 to Section 3.
− Rearranged order of text and figures.
Section 4
− Rearranged and renamed.
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