Siemens SIPROTEC 4 7UT6 Series Manual page 364

Mounting and Commissioning
3.3 Commissioning
Message No.
5131
Pf> VT error
5133
Pf> set error
BkrFail Not av. 047.2491
BkrFail2 Not av 206.2491
TripC ProgFail 6864
Check in the operational or spontaneous annunciations that there is not any information on inconsistencies.
The matching factors of all measured value inputs are indicated in the operational annunciations. It is recom-
mended to check these factors even if none of the above mentioned alarms is present. The indicated factors
are:
•
generally, the ratio of the rated current/voltage of the side referred to the rated current/voltage of the
instrument transformers at the measuring locations;
•
for differential protection, the ratio of the rated current of the protected object referred to the rated
current of the current transformers at the measuring locations;
•
for restricted earth fault protection, the ratio of the rated current of the assigned side of the protected
object referred to the rated current of the starpoint current transformer.
None of these factors should be greater than 8 or smaller than 0.125. Otherwise, the risk of higher measuring
errors could arise. If a factor is greater than 50 or smaller than 0.02, unexpected reactions of protection func-
tion may occur.
Table 3-30
Message No.
30060
Gen CT-M1:
to to
30064
Gen CT-M5:
30065
Gen VT-U1:
5733
Diff CT-M1:
to to
5737
Diff CT-M5:
5721
Diff CT-I1:
to to
5732
DiffCT-I12:
364
Meaning
Forward power supervision is not available without voltage connec-
tion
Forward power supervision setting not plausible
Breaker failure protection is not available for the configured protected
object
Breaker failure protection 2 is not available for the configured
protected object
For trip circuit supervision the number of binary inputs was set incor-
rectly
Indications on matching factors
General: Magnitude matching factor at the indicated measuring loca-
tion
General: Magnitude matching factor of 3-phase voltage input
Differential protection: Magnitude matching factor of the indicated
measuring location (3-phase protected objects)
Differential protection: Magnitude matching factor of the indicated
measuring location (1-phase busbar protection)
Description
C53000-G1176-C230-5, Edition 09.2016
see
Section
2.13 Forwar
d Power
Supervision
2.13 Forwar
d Power
Supervision
2.1.4 Power
System Data
1
2.1.4 Power
System Data
12.1.6 Powe
r System
Data 2
3.1 Mountin
g and
Connections
("Connec-
tion
Variants")")
see
section
2.1.4 Power
System Data
1
2.1.4 Power
System Data
1
2.1.4 Power
System Data
1
2.1.4 Power
System Data
1
SIPROTEC 4, 7UT6x, Manual