Settings; Information List - Siemens SIPROTEC 4 7SJ61 Manual

Address 8106 Σ I THRESHOLD determines the limit current above which the current sum monitoring is acti-
vated (absolute portion, only relative to Ι
current) for activating the current sum monitor is set at address 8107 Σ I FACTOR.
NOTE
i
i
Current sum monitoring can operate properly only when the residual current of the protected line is fed to
the fourth current input (Ι
(Ι ) may not be sensitive.
N
NOTE
i
i
The connections of the ground paths and their adaption factors were set when configuring the general
Power System Data. These settings must be correct for the measured values monitoring to function prop-
erly.
Measured value monitoring can be set to ON or OFF at address 8101 MEASURE. SUPERV.
2.8.1.6

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 secon-
dary nominal current of the current transformer.
Addr. Parameter
5308A FFM Idiff (3ph)
8101 MEASURE. SUPERV
8104 BALANCE I LIMIT
8105 BAL. FACTOR I
8106 Σ I THRESHOLD
8107 Σ I FACTOR
8109 FAST Σ i MONIT
8110A T BAL. V LIMIT
8111A T BAL. I LIMIT
2.8.1.7

Information List

No. Information
161 Fail I Superv.
162 Failure Σ I
163 Fail I balance
175 Fail Ph. Seq. I
197 MeasSup OFF
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016
). The relative portion (relative to the maximum conductor
Nom
) of the relay (see Power System Data 1). Furthermore, the fourth current input
N
C Setting Options
1A 0.05 .. 1.00 A
5A 0.25 .. 5.00 A
OFF
ON
1A 0.10 .. 1.00 A
5A 0.50 .. 5.00 A
0.10 .. 0.90
1A 0.05 .. 2.00 A; ∞
5A 0.25 .. 10.00 A; ∞
0.00 .. 0.95
OFF
ON
0 .. 100 sec
0 .. 100 sec
Type of Comments
Informa-
tion
OUT Failure: General Current Supervision
OUT Failure: Current Summation
OUT Failure: Current Balance
OUT Failure: Phase Sequence Current
OUT Measurement Supervision is switched OFF
Default Setting Comments
0.10 A Differential Current
Threshold (3phase)
0.50 A
ON Measurement Supervision
0.50 A Current Threshold for
Balance Monitoring
2.50 A
0.50 Balance Factor for Current
Monitor
0.10 A Summated Current Moni-
toring Threshold
0.50 A
0.10 Summated Current Moni-
toring Factor
ON Fast Summated Current
Monitoring
5 sec T Balance Factor for
Voltage Monitor
5 sec T Current Balance Monitor
Functions
2.8 Monitoring Functions
125