Sel -351S Instruction Manual page 603

Table A.1 Firmware Revision History (Sheet 3 of 5)
Firmware Identification (FID) Number
This firmware differs from the previous version as follows:
SEL-351S-x-R113-V0-Z005005-D20030908
This firmware differs from the previous version as follows:
SEL-351S-x-R112-V0-Z005005-D20030714
This firmware differs from the previous version as follows:
SEL-351S-x-R111-V0-Z005005-D20030212
This firmware differs from the previous version as follows:
SEL-351S-x-R110-V0-Z005005-D20021106
This firmware applies to the manual date code listed:
SEL-351S-x-R110-V0-Z005005-D20020725
This firmware differs from the previous version as follows:
SEL-351S-x-R109-V0-Z005005-D20020725
This firmware differs from the previous version as follows:
SEL-351S-x-R108-V0-Z005005-D20020711
Date Code 20080103
Description of Changes
➤
CT saturation protection was enhanced to improve security with
low-set instantaneous values.
➤
Corrected rounding error in breaker wear monitor.
➤
Optimized calibration settings for Petersen Coil units to
improve the factory calibration process.
➤
Corrected improper metering and protection on 0.05 A neutral
CT for secondary currents in the range of 0.045–0.120A. This
affects firmware versions R108–R110 with part numbers
0351Sxxxxxx(8 or 9)xxx.
➤
Added CT Saturation Protection.
➤
Limited TCLOSD setting step size to 0.25 cycle increments.
➤
Added Rollover feature for all Energy Values (MWhA
MWhA , MWhB , etc.). All Energy Values will rollover at
OUT IN
100000.
➤
Manual update only. See Table A.2
updates.
➤
Updated the calibration settings for manufacturing. (This is the
first shipping released that includes all of the changes listed
under R108 below, which was never shipped.)
➤
Added global setting PTCONN to allow the relay VA, VB, VC, and
N input terminals to be connected to wye-connected PTs (as
before), or open-delta connected PTs.
➤
Added global setting VSCONN to allow the relay VS-NS termi-
nals to be connected to a synchronism check voltage source (as
before), or a broken-delta zero-sequence voltage source.
➤
Added ground directional element options for low-impedance,
Petersen coil, and ungrounded/high-impedance grounded sys-
tems (expanded setting options for setting ORDER [S, P, and
U]). These new directional element options require the new
option of a 0.2 A nominal neutral channel (IN) current input.
➤
Supervising LOP (loss-of-potential) logic is removed from
directional element logic (with outputs F32x and R32x) and put
into preceding internal enable logic (with outputs 32xE).
➤
Extended the lower end of the pickup setting range of the resid-
ual ground instantaneous/definite-time overcurrent elements
50G1–50G6/67G1T–67G6T (from 0.05 A to 0.01 A for 1 A
nominal phase current inputs; from 0.25 A to 0.05 A for 5 A
nominal phase current inputs). Also, an intentional 2-cycle
built-in delay is added to the residual ground instantaneous/ def-
inite-time overcurrent elements—this delay is active for the new
extended lower range only.
➤
Extended the lower end of the pickup setting range of the resid-
ual ground time-overcurrent elements 51G1T and 51G2T (from
0.1 A to 0.02 A for 1 A nominal phase current inputs; from
0.5 A to 0.1 A for 5 A nominal phase current inputs).
Instruction Manual
Firmware and Manual Versions
Manual Date
,
IN
for a summary of manual
A.3
Firmware
Code
20030908
20030714
20030212
20021106
20021009
20020725
20020711
SEL-351S Relay