Functions
2.24 Monitoring Functions
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
437
2.24.1.7 Settings
Addresses which have an appended "A" can only be changed with DIGSI, under Additional Settings.
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding second-
ary nominal current of the current transformer.
Addr.
Parameter
C
Setting Options
Default Setting
Comments
2901
MEASURE. SUPERV
ON
OFF
ON
Measurement Supervision
2902A
BALANCE U-LIMIT
10 .. 100 V
50 V
Voltage Threshold for
Balance Monitoring
2903A
BAL. FACTOR U
0.58 .. 0.95
0.75
Balance Factor for Voltage
Monitor
2904A
BALANCE I LIMIT
1A
0.10 .. 1.00 A
0.50 A
Current Balance Monitor
5A
0.50 .. 5.00 A
2.50 A
2905A
BAL. FACTOR I
0.10 .. 0.95
0.50
Balance Factor for Current
Monitor
2906A
Σ
I THRESHOLD
1A
0.10 .. 2.00 A
0.25 A
Summated Current Moni-
toring Threshold
5A
0.50 .. 10.00 A
1.25 A
2907A
Σ
I FACTOR
0.00 .. 0.95
0.50
Summated Current Moni-
toring Factor
2908A
T BAL. U LIMIT
5 .. 100 sec
5 sec
T Balance Factor for
Voltage Monitor
2909A
T BAL. I LIMIT
5 .. 100 sec
5 sec
T Current Balance Monitor
2910
FUSE FAIL MON.
ON
OFF
ON
Fuse Failure Monitor
2911A
FFM U>(min)
10 .. 100 V
30 V
Minimum Voltage Thresh-
old U>
2912A
FFM I< (max)
1A
0.10 .. 1.00 A
0.10 A
Maximum Current Thresh-
old I<
5A
0.50 .. 5.00 A
0.50 A
2913A
FFM U<max (3ph)
2 .. 100 V
15 V
Maximum Voltage Thresh-
old U< (3phase)
2914A
FFM Idelta (3p)
1A
0.05 .. 1.00 A
0.10 A
Delta Current Threshold
(3phase)
5A
0.25 .. 5.00 A
0.50 A
2915
V-Supervision
w/ CURR.SUP
w/ I> & CBaux
OFF
w/ CURR.SUP
Voltage Failure Supervi-
sion
2916A
T V-Supervision
0.00 .. 30.00 sec
3.00 sec
Delay Voltage Failure Su-
pervision
2921
T mcb
0 .. 30 ms
0 ms
VT mcb operating time
2931
BROKEN WIRE
ON
OFF
Alarm only
OFF
Fast broken current-wire
supervision
2933
FAST
Σ
i SUPERV
ON
OFF
ON
State of fast current sum-
mation supervis