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Function-Group Types
5.6 Function-Group Type Circuit Breaker, 1-/3-Pole
No.
_:315
_:316
_:322
_:323
Circuit-Breaker Position Recognition for Protection-Related Auxiliary
5.6.6
Functions
5.6.6.1
Overview
This function block calculates the position of the circuit breaker from the evaluation of the auxiliary contacts
and the current flow. The determination is performed phase-segregated.
This information is needed in the following protection-related additional functions:
•
Trip logic (see
•
Detection of manual closing (see
•
Process monitor (see
Its use is described in the respective chapters.
The control does not use this information. It evaluates the circuit-breaker auxiliary contacts.
[lozust1p-170611-01.tif, 1, en_US]
Figure 5-49
Based on the connection between the information from the auxiliary contacts and the current flow, the
circuit-breaker condition can assume the following conditions separately for each phase:
Circuit-Breaker Condition,
Phase-Segregated
Open
Closed
Possibly open, possibly closed
246
Information
Circuit break.:Break. voltage phs B
Circuit break.:Break. voltage phs C
Circuit break.:CB open hours
Circuit break.:Operating hours
5.6.4.1 Function Description
5.6.7.1 Function
5.8.1 Overview of
Overview of the Circuit-Breaker Position Recognition Function
Description
The circuit-breaker pole is detected unambiguously as open
according to both criteria.
The circuit-breaker pole is detected unambiguously as closed
according to both criteria.
These conditions can occur if the information is incomplete due to
the routing of the auxiliary contacts and the condition can no longer
be determined reliably. These uncertain conditions are evaluated
differently by certain functions.
)
Description)
Functions)
SIPROTEC 5, High-Voltage Bay Controller, Manual
Data Class
Type
(Type)
MV
O
MV
O
INS
O
INS
O
C53000-G5040-C015-9, Edition 11.2017
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