Settings
Addr.
Parameter
C
Setting Options
Default Setting
Trip logic
_:101
Trip logic:Trip at 2ph short
circuit
•
3-pole
•
1-pole, leading phase
•
1-pole, lagging phase
3-pole
_:102
Trip logic:3-pole coupling
•
with pickup
•
with trip
with trip
_:103
Trip logic:Reset of trip
command
•
with I<
•
with I< & aux.contact
•
with dropout
with I<
Information List
No.
Information
Data Class
(Type)
Type
Trip logic
_:300
Trip logic:Trip indication
ACT
O
Circuit Breaker
Overview
The Circuit-breaker function block represents the physical switch in the SIPROTEC 5 device.
The basic tasks of this function block are the operation of the circuit breaker and the acquisition of the circuit-
breaker auxiliary contacts and other circuit-breaker information.
The Circuit-breaker function block also provides information about:
•
Number of switching cycles
•
Breaking current, breaking voltage, and breaking frequency
•
Summation breaking current
Tripping, Opening, and Closing the Circuit Breaker
The circuit breaker is operated in the following situations:
•
Tripping of the circuit breaker as a result of a protection trip command
•
Opening of the circuit breaker as a result of control operations
•
Closing of the circuit breaker as a result of automatic reclosing or control operations
Tripping is always the result of a protection function. The operate indications of the individual protection func-
tions are summarized in the Trip logic function block. The trip command that causes the tripping in the
Circuit breaker function block is generated there. 1-pole or 3-pole tripping is possible depending on the
configuration, parameterization or even the protection function (see also
To operate the circuit breaker, the Circuit-breaker function block provides the output signals (see
)
that must be routed to the corresponding binary outputs of the device.
5.6.4.3
5.6.4.4
5.6.5
5.6.5.1
5.6.5.2
Function-Group Types
5.6 Function-Group Type Circuit Breaker, 1-/3-Pole
236
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Summary of Contents for 6MD85
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