control functionality. For purely protection applications, it is also enough to capture just one of the 2 circuit-
breaker positions.
[loauswer-230311-01.tif, 1, en_US]
Figure 5-83 Recommended Analysis of the Circuit-Breaker Switch Position when Used as a Protection and
Control Device
The following diagram shows the recommended routing, in which H stands for active with voltage.
[scpolg3p-230311-01.tif, 1, en_US]
Figure 5-84 Routing for Acquisition of the Circuit-Breaker Switch Position via 2 Auxiliary Contacts
The device can also function without the analysis from the circuit-breaker auxiliary contacts, that is, routing of
the auxiliary contacts is not absolutely necessary. However, this is a requirement for control functions.
Parameter: Output Time
•
Default setting (_:101) Output time = 0.10 s
The Output time parameter acts on the signals for tripping, opening, and closing of the circuit breaker.
CAUTION
Do not set a time that is too short.
If you set a time that is too short, there is a danger that the device contacts will interrupt the control
circuit. If this happens, the device contacts will burn out.
²
Set a time that is long enough to ensure that the circuit breaker reliably reaches its final position
(open or closed) after a control operation.
Parameter: Indicat. of breaking values
•
Default setting (_:105) Indicat. of breaking values = always
With the Indicat. of breaking values parameter, you define whether the measured values are to be
indicated if the circuit breaker is opened by way of the control function.
Function-Group Types
5.7 Function-Group Type Circuit Breaker
288 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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