A.2
SEL-700G Relay
Instruction Manual
Date Code 20170814
Firmware and Manual Versions
Firmware
➤
Increased the resolution of the slip frequency and the fre-
quency of the VS channel to three decimal places in the
compressed generator synchronism report (CGSR).
➤
Added LOPBLKX and LOPBLKY SEL
OGIC
control equa-
tion settings to allow for blocking of the LOP logic under
user-defined conditions. Also raised the minimum thresh-
old for positive-sequence voltage V1 from 5 V to 10.5 V.
SEL-700G-R108-V0-Z004002-D20150410
➤
Enhanced the differential element (87) by adding a high
security mode of operation to improve the security of the
element for external events, such as faults or transformer
energization, when there is severe CT saturation. This
enhancement includes three new settings and twenty six
new Relay Word bits.
➤
Modified the differential element (87) setting CTCX to
make it user settable with the range of 0 or 12. In all previ-
ous firmware versions, CTCX was automatically set to 0
or 12, depending on the application, and hidden. Following
a firmware upgrade and settings conversion using
AC
SEL
ERATOR
QuickSet SEL-5030 Software, the user will
need to review the CTCX setting and manually update it to
suit the application.
➤
Modified the firmware to hide the X side directional
element settings if the setting ORDERX := OFF.
➤
Changed the minimum values of the FPLSMIND and
VPLSMIND settings from 0.1 to 0.02 to allow finer fre-
quency and voltage control pulses in the autosynchronizer
function.
➤
Revised the firmware to allow the user to set up to two
backup elements. The revised EBUP setting range allows
the user to choose distance (DC) and voltage restraint (V),
or distance (DC) and voltage controlled (C) overcurrent
elements.
➤
Revised the firmware for Trip Logic such that RSTTRGT is
processed on the rising edge.
➤
Addressed an issue in the firmware where the rotating dis-
play stops rotating when the setting RSTTRGT is set to 1 or
is asserted continuously.
➤
Revised the firmware to hide the Relay Word bits associ-
ated with overcurrent elements based on the part number of
the relay.
➤
Revised the REF element logic to improve the sensitivity
for applications with different neutral and phase CT ratings.
➤
Modified the firmware to reset Virtual Bits when a new
CID file is sent to the relay.
➤
Resolved an issue in R106 and R107 firmware revisions
with the relay becoming unresponsive on power-up if the
setting NETPORT was set to D in dual Ethernet models
with the setting NETMODE set to FIXED or FAILOVER.
20150410
SEL-700G-R107-V0-Z003002-D20140806
➤
Resolved an issue with R106 firmware in which the values
of V1 and I1 synchrophasor quantities were always
reported as zero.
➤
Resolved a synchrophasor voltage magnitude issue for
applied voltages of 200 V or higher with the settings com-
bination FNOM := 50, MRATE := 25, PHCOMP := Y, and
PMAPP := NARROW.
20140806
Table A.1
Firmware Revision History
(Sheet 2 of 5)
Firmware Identification (FID) Number
Summary of Revisions
Manual Date Code
Summary of Contents for SEL-700G Series
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