With raising general pickup, the action times of the configured automatic reclosing cycles start. The general
pickup is in this connection the group indication of all internal protection functions configured for starting the
automatic reclosing and the external binary input for general pickup
>Gen. pickup for start
.
Through the time between the raising general pickup and raising trip command, the automatic reclosing cycle
to be started will be determined. Here for multiple automatic reclosing cycles, the sequence of the expiring
automatic reclosing cycles is not fixed, like the operating modes without action time.
The following example shows a tripping that comes after expiration of the action time of cycle 1, but still
before the expiration of the action times from cycle 2 and cycle 3. Since it is a 2-phase pickup, cycle 2 is active
with the dead-time setting for 2-phase faults.
After reclosing, there will be another, this time 3-phase, pickup and tripping within the following reclaim time.
Since cycle 2 is already complete, these and all lower cycles are no longer able to expire. The trip command
comes during the current action time of cycle 3. Thus, cycle 3 is active, with the dead time setting for 3-phase
faults.
[dwarcbm2-190912-01.tif, 1, en_US]
Figure 6-294 Operating-Mode Signal Examples: With Pickup/With Action Time
Operating Mode 3: with op., w/o act. time
With the operating mode with op., w/o act. time, the respective dead time is started after each trip
command. The pickups are not considered. If more than one automatic reclosing cycle is configured, the
sequence of the expiring automatic reclosing cycles is identical with the cycle number (1, 2, and 3.).
[dwaweb3d-240810-01.tif, 1, en_US]
Figure 6-295 Operating-Mode Signal Examples: With Tripping/Without Action Time
Operating Mode 4: w.pickup, w/o act. time
With the operating mode w.pickup, w/o act. time, the automatic reclosing must be started with the
operate indications from the protection functions. It is only suitable and applicable for applications with 3-pole
tripping.
Protection and Automation Functions
6.45 Automatic Reclosing Function
SIPROTEC 5, Overcurrent Protection, Manual 889
C53000-G5040-C017-8, Edition 07.2017
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