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Protection and Automation Functions
6.45 Automatic Reclosing Function
[lolsbere-130511-01.tif, 1, en_US]
Figure 6-315
6.45.4.17
Blockings
The Automatic reclosing function differentiates between 2 types of blockings, see
•
Static blocking
•
Dynamic blocking
Static Blocking
The Automatic reclosing function is statically blocked if the function is switched on, but is not ready for
reclosing and also cannot be started as long as this blocking is present. The dynamic blocking is signaled with
the indication
Inactive .
The following conditions lead to the static blocking:
Condition
Manual closing of the circuit breaker, recognition through binary
input or internal device control.
The blocking is temporary, the duration can be set with the
parameter Block. time aft. man.close.
Circuit breaker not available for automatic reclosing function,
recognition through binary input. This cause can be switched on
or off through the parameter CB ready check bef.close.
Circuit breaker of non-closed 3-pole, recognition through binary
input.
This criteria is used if the circuit-breaker auxiliary contacts are
connected.
910
Cyclic Reclosing Function: Logic for the Circuit-Breaker Readiness
Figure
6-316:
Indication
Inactive
Inactive
Inactive
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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