A.3
Date Code 20170927 Instruction Manual SEL-751 Relay
Firmware, ICD, and Manual Versions
Firmware
Table A.2 R100 Series Firmware Revision History (Sheet 1 of 5)
Firmware Identification (FID) Number Summary of Revisions
Manual
Date Code
SEL-751-R112-V3-Z006002-D20170922 Includes all the functions of SEL-751-R112-V2-Z006002-D20170814
with the following additions:
➤ Addressed an issue in the previous firmware that could cause
IEC 61850 GI buffered reports to be out of sequence when the number
of uncollected reports exceeded 200.
20170922
SEL-751-R112-V2-Z006002-D20170814 Includes all the functions of SEL-751-R112-V1-Z006002-D20160930
with the following additions:
➤ Resolved an issue where certain Ethernet traffic could cause diagnostic
restarts.
NOTE: When upgrading to the R200 series firmware from the R100 series
firmware, make sure to upgrade to firmware version R200-V3 or higher to
maintain the Ethernet traffic resolution of this R100 series firmware point
release.
20170814
SEL-751-R112-V1-Z006002-D20160930 Includes all the functions of SEL-751-R112-V0-Z006002-D20151112
with the following additions:
➤ Resolved a relay disabling issue when the setting EPMU was set to Y
and there was a corrupt IRIG signal.
20160930
➤ Resolved an issue where HIF event reports may not get triggered if
rising-edge triggered Relay Word bits are used in the HIFER setting.
➤ Resolved an issue causing HIF false alarms in the A-phase channel in
the HIF Detection Non-Harmonic Method algorithm.
➤ Modified GOOSE subscription to update data after the messages
transition from lower to better quality.
➤ Resolved an issue where the relay was not allowing access to the
settings using FTP protocol unless the relay part number included the
IEC 61850 protocol option.
SEL-751-R112-V0-Z006002-D20151112
➤ Enhanced the firmware to add directional control capability to support
high-impedance, ungrounded and Petersen coil-grounded systems in
relays with the 200 mA CT option. The 200 mA CT can also be used
for nondirectional sensitive earth fault (SEF) protection.
20151112
➤ Added 8 Vac rms Low-Energy Analog (LEA) ac inputs for system
voltages and synchronism-check input.
➤ Added IEC-60870-5-103 protocol.
➤ Added IEC 62439 Parallel Redundancy Protocol (PRP) for models
with the dual Ethernet port option.
➤ Increased the number of DNP sessions from 3 to 5.
➤ Updated IEC 61850 protocol implementation to IEC 61850 Edition 2.
➤ Added password authentication and session timeout for MMS services.
➤ Enhanced the CPU card design, including the addition of a GOOSE
port with a dedicated MAC address to improve GOOSE processing
performance. (Note: Relays with older CPU cards can be upgraded to
firmware versions R112 or higher, but the relay will not have the
GOOSE performance improvements.)
➤ Added file transfer support in IEC 61850 for CEV events,
COMTRADE events, MET reports, SER reports, BRE reports, CID
files, and Settings file.
➤ Added the inverse-time over- and undervoltage elements.
➤ Added IEC line/cable thermal overload protection elements to protect
the overhead lines and cables against thermal overloads.
➤ Added a vector shift protection function to detect a generator islanding
condition based on the phase shift of the voltage waveform.
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