Siemens SIPROTEC 4 7SJ61 User 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
Nom
). The relative portion (relative to the maximum conductor
current) for activating the current sum monitor is set at address 8107 Σ I FACTOR.
i
i
NOTE
Current sum monitoring can operate properly only when the residual current of the protected line is fed to
the fourth current input (Ι
N
) of the relay (see Power System Data 1). Furthermore, the fourth current input
(Ι
N
) may not be sensitive.
i
i
NOTE
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.
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 C Setting Options Default Setting Comments
5308A FFM Idiff (3ph) 1A 0.05 .. 1.00 A 0.10 A Differential Current
Threshold (3phase)
5A 0.25 .. 5.00 A 0.50 A
8101 MEASURE. SUPERV OFF
ON
ON Measurement Supervision
8104 BALANCE I LIMIT 1A 0.10 .. 1.00 A 0.50 A Current Threshold for
Balance Monitoring
5A 0.50 .. 5.00 A 2.50 A
8105 BAL. FACTOR I 0.10 .. 0.90 0.50 Balance Factor for Current
Monitor
8106 Σ I THRESHOLD 1A 0.05 .. 2.00 A; ∞ 0.10 A Summated Current Moni-
toring Threshold
5A 0.25 .. 10.00 A; ∞ 0.50 A
8107 Σ I FACTOR 0.00 .. 0.95 0.10 Summated Current Moni-
toring Factor
8109 FAST Σ i MONIT OFF
ON
ON Fast Summated Current
Monitoring
8110A T BAL. V LIMIT 0 .. 100 sec 5 sec T Balance Factor for
Voltage Monitor
8111A T BAL. I LIMIT 0 .. 100 sec 5 sec T Current Balance Monitor
Information List
No.
Information Type of
Informa-
tion
Comments
161 Fail I Superv. OUT Failure: General Current Supervision
162 Failure Σ I OUT Failure: Current Summation
163 Fail I balance OUT Failure: Current Balance
175 Fail Ph. Seq. I OUT Failure: Phase Sequence Current
197 MeasSup OFF OUT Measurement Supervision is switched OFF
2.8.1.6
2.8.1.7
Functions
2.8 Monitoring Functions
SIPROTEC 4, 7SJ61, Manual 125
C53000-G1140-C210-6, Edition 05.2016

Siemens SIPROTEC 4 7SJ61 Specifications

General

Brand	Siemens
Model	SIPROTEC 4 7SJ61
Category	Relays
Language	English