•
For 1-phase busbar protection:
Each input can be set individually. Only if measuring inputs Ι
1
to Ι
3
have the same rated current, X68 is
plugged to the same rated current. Only if measuring inputs Ι
4
to Ι
6
have the same rated current, X69 is
plugged to the same rated current.
If different rated currents are reigning within the input groups, the corresponding common jumper is
plugged to“undef”.
For interposed summation transformers with 100 mA output, jumpers of all measuring inputs, including
the common jumpers, are plugged to 0.1 A.
Table 3-11 Assignment of jumpers for the rated current to the measuring inputs
Application Jumpers
3-phase 1-phase individual common
Ι
L1S1
Ι
1
X61
X68
Ι
L2S1
Ι
2
X62
Ι
L3S1
Ι
3
X63
Ι
L1S2
Ι
4
X65
X69
Ι
L2S2
Ι
5
X66
Ι
L3S2
Ι
6
X67
Ι
Z1
Ι
7
X64
X70
Ι
Z3
Ι
8
– –
Input/Output Board(s) C-I/O-1 and C-I/O-10 (only 7UT633 and 7UT635)
The PCB layout for the C-I/O-1 input/output board is shown in Figure 3-9 and the input/output group C-I/O-10
as from release 7UT6../EE in Figure 3-10.
Mounting and Commissioning
3.1 Mounting and Connections
326 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
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