A.2
SEL-311C Relay Instruction Manual Date Code 20060320
Firmware and Instruction Manual Versions
Firmware
SETTINGS
➤ Added access to Global Settings PHROT, NFREQ, LER, and
PRE to all APP setting parameters.
➤ Lowered minimum pickup setting for time-overcurrent elements
to 0.05 • I
NOM
.
➤ Added DNP3 analog and binary setting maps to the file transfer
system to provide complete
ACSELERATOR
®
QuickSet SEL-5030 compatibility.
➤ Corrected inconsistency in hide rules when enabling
compensator-distance elements.
➤ Corrected issue where, when ECOMM was enabled, the relay
did not confirm that three levels of directional overcurrent were
enabled, and that Zone 3 was set to reverse.
➤ Corrected substation battery monitor implementation to allow
both Relay Word bits DCLO and DCHI to assert when DCLOP
is set higher than DCHIP.
REPORTING
➤ Changed default event report and compressed event report com-
mand length to follow Global Setting LER.
➤ Power Factor values found in DNP and ASCII communication
now match in resolution when polled simultaneously.
➤ Changed Digital Input Data for regular and compressed Event
Reports. Now Digital Data corresponds to raw or filtered analog
values displayed.
➤ Added Rollover feature for all Energy Values when accessed
through the front panel or ASCII port. All Energy Values
rollover at 100000.
COMMUNICATION
➤ Lowered Port 1 maximum speed from 38.4 kbps to 19.2 kbps.
➤ Added new Protocol settings MBGA and MBGB, which when
set, move M
IRRORED BITS
®
related settings into Group settings
structure for more flexible operation, such as in bus-transfer
schemes
➤ Improved password security.
This firmware differs from the previous versions as follows:
SEL-311C-R109-V0-Z004003-D20050114
➤ Manual Update Only—See Tabl e A.3 for summary of manual
updates.
20051215
This firmware differs from the previous versions as follows:
SEL-311C-R109-V0-Z004003-D20050114
➤ Manual Update Only—See Tabl e A.3 for summary of manual
updates.
20050415
This firmware differs from the previous versions as follows:
SEL-311C-R109-V0-Z004003-D20050114
➤ Corrected issue where elements in compensator distance
protection may not properly operate for high-impedance lines
under high fault current conditions.
➤ Corrected issue where event summaries do not report the
correct fault current if LER is 30 cycles or more, and PRE is 15
cycles or more.
20050114
This firmware differs from the previous versions as follows:
SEL-311C-R108-V0-Z004003-D20030725
➤ Corrected problem where Quadrilateral distance element
may overreach under specific conditions.
20030728
Table A.1 Firmware Revision History (Sheet 2 of 3)
Firmware Part/Revision No. Description of Firmware
Manual
Date Code
To Next Page
