These signals are of the Double-point indication (DPC) type. A double-point indication can be routed to
2 binary inputs so that the open and closed circuit-breaker positions can be reliably acquired.
[loerfass-101210-01.tif, 1, en_US]
Figure 5-21 Acquisition of the Circuit-Breaker Information
Signal Type Description
Position
DPC Acquisition of the circuit-breaker position
The position 3-pole circuit breaker open and/or the position 3-pole
circuit breaker closed can be acquired by routing to 1 or 2 binary
inputs.
The signals must be routed to the binary input that is connected with the CB auxiliary contacts. The open and
closed signals do not necessarily have to be routed in parallel. The advantage of parallel routing is that it can
be used to determine an intermediate or disturbed position. On the other hand, this is not possible if only one
signal is routed.
In the monitoring direction, the position signals generate the following information when the open and
closed positions are acquired (see following table). This information is further processed by the Circuit-
breaker position recognition and Control function blocks.
Information
Type Description
Off SPS Circuit-breaker position is opened.
On SPS Circuit-breaker position is closed.
Intermediate position SPS Circuit-breaker position is in intermediate position.
Disturbed position SPS Circuit-breaker position is in disturbed position.
Not selected SPS The circuit breaker is not selected for a control operation.
Other input signals are:
Signal
Type Description
>Acquisition
blocking
SPS This is used to activate acquisition blocking of the circuit-breaker auxil-
iary contacts (see Other Functions 3.8.3 Persistent Commands for a
description of acquisition blocking).
>Reset
AcqBlk&Subst
SPS This is used to reset acquisition blocking and manual update of the
circuit breaker. Setting acquisition blocking and tracking is blocked with
the input activated.
Function-Group Types
5.5 Function-Group Type Circuit Breaker, 3-Pole
SIPROTEC 5, High-Voltage Bay Controller, Manual 217
C53000-G5040-C015-9, Edition 11.2017
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