The cycle availability is influenced through the parameterization of the dead time and through a binary input.
In this way, setting the parameter Dead time aft.1ph. pickup to invalid avoids an automatic
reclosing after 3-pole tripping due to 1-phase short circuits. This also applies to Dead time aft.2ph.
pickup and Dead time aft.3ph. pickup. If all 3 dead times are set to invalid, the respective
reclosing cycle will be completely blocked. With the binary input
>Block 79 cycle
, you can block the asso-
ciated automatic reclosing cycle.
[loanowrk-100611-01.tif, 1, en_US]
Figure 7-38
Cycle Control with Operating Mode: With Pickup/Without Action Time
Stage Release
The function block Stage release creates output indications for the release or switching over of special stages
for protection functions (stage release in the 1st cycle or stage release in the n. cycle). Examples for this are
the release of overreaching zones with distance protection and the dynamic adjustment of delays or threshold
values with overcurrent protection.
7.2.4.10
Protection and Automation Functions
7.2 Automatic Reclosing Function
SIPROTEC 5, High-Voltage Bay Controller, Manual 559
C53000-G5040-C015-9, Edition 11.2017
To Next Page
Loading...
