Settings - Siemens SIPROTEC 7SD610 Manual

Calculation example:
Transformer
This results in the following:
Rated current at rated voltage
Rated current at U
Rated current at U
The maximum deviation from this current is
This maximum deviation δ
and 254 E% K_ALF_N as determined above.
Please consider that this deviation through voltage control is referred to the mean current at rated apparent
power and not to the rated current at rated voltage. This requires an adequate correction of the setting values
as discussed in Section 2.1.4 under „Topological Data for Transformers (optional)".

2.1.2.2 Settings

Addresses which have an appended "A" can only be changed with DIGSI, under Additional Settings.
Addr. Parameter
201 CT Starpoint
203 Unom PRIMARY
204 Unom SECONDARY
205 CT PRIMARY
206 CT SECONDARY
207 SystemStarpoint
208A 1-1/2 CB
210 U4 transformer
211 Uph / Udelta
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
YNd5
35 MV
110 kV / 25 kV
Y-winding with tap changer ±10 %
I = 184 A
N
+ 10 % I = 167 A
N min
– 10 % I = 202 A
N max
[in %] has to be added to the maximum transformer errors 253 E% ALF/ALF_N
max
Setting Options
towards Line
towards Busbar
0.4 .. 1200.0 kV
80 .. 125 V
10 .. 10000 A
1A
5A
Solid Earthed
Peterson-Coil
Isolated
NO
YES
Not connected
Udelta transf.
Ux transformer
0.10 .. 9.99
Default Setting
towards Line CT Starpoint
400.0 kV Rated Primary Voltage
100 V Rated Secondary Voltage (Ph-Ph)
1000 A CT Rated Primary Current
1A CT Rated Secondary Current
Solid Earthed System Starpoint is
NO 1-1/2 Circuit breaker arrangement
Not connected U4 voltage transformer is
1.73 Matching ratio Phase-VT To
Open-Delta-VT
Functions
2.1 General
Comments
39