Siemens 7UT51 Instruction Manual page 215

7UT51 v3
Addr LCD Line 1
WinDIGSI Description
1400 ADDITIONAL PROTECTED OBJECT DATA
In VIRT OB
1401
Nominal current of virtual object
In CT
1402
Rated primary current of CT
In CT STPT
1404
Rated primary current of star
CT STARPT
1405
Ground point of the CT currents
TRANSFORMER DIFFERENTIAL PROTECTION SETTINGS
1600
To configure 16xx settings, setting 7816 must first be set to "Existent.".
87 STATUS
Normal operational status of transformer
1601
differential protection function (87 and
87HS).
87 PICKUP
1603
- -
87 Pick Up value of diff protection
87HS RMS
1604 -
87HS Highset Pick
prot.
87SLOPE 1
1606
-
87 Slope 1 of operating characteristic
87BASE PT2
1607
-
87 Base point for slope 2 of operating
char.
87SLOPE 2
1608
-
87 Slope 2 of operating characteristic
HARMN RSTR
1610
-
87 State of 2nd harmonic restraint
%2nd HARMN
1611 -
87 2nd harm content in the different.
current
-
X BLK 2HRM
1612
- -
87 Time for cross
harmonic
n. HARMN
-
87 Choice a further (n
1613
%n. HARMN
1614
- -
87 n th harmonic content in the diff.
current
-
X BLK nHM
1615
-
87 Activ time for cross
harm
IDIFFmax n
1616
-
87 Limit IDIFFmax of n
restraint
- -
T SAT BLK
1617
-
87 Max. blocking time at CT saturation
-
SAT RESTR.
1618 -
87 Min. restr. current for blocking @CT
satur.
87 DELAY
1625
-
87 Trip time delay of diff. current stage
PRIM-2330C
1
1
1
-
point CT
Same side
Opposite sides
OFF
ON
Block Tripping
0.15
0.5
-
up RMS value of diff
0.10
0.0
0.25
ON
OFF
10
0
blocking with 2nd
5th harmonic
4th harmonic
-
th) harmonic restr
3rd harmonic
OFF
10
0
- -
blocking w/ n th
0.5
-
th harmonic
2
5.00
Trans
0.00
Options or
Default
Range and Unit
-
100000 A 2000
-
100000 A 2000
-
100000 A 2000
X
X
-
2.00 I/In 0.20
-
20.0 I/In 7.5
-
0.50 0.25
-
10.0 I/In 2.5
-
0.95 0.50
X
-
80 % 15
1000 cycles or ∞
-
0
X
-
80 % 80
1000 cycles or ∞
-
0
-
20.0 I/In Trans 1.5
250 cycles or ∞
-
8
-
15.00 I/In 7.00
60.00 s or ∞
-
0.00
Settings Record
Setting Setting Setting
Group A Group B Group C
20
Setting
Group D
215