Siemens SIPROTEC 7SJ61 Manual page 164

Functions
2.11 Automatic Reclosing System 79
Figure 2-57
Initiation
Initiation of the automatic reclosing function can be caused by internal protective functions or externally using
a binary input. The automatic reclosing system can be programmed such that any of the elements of Table 2-
10 can initiate (Starts 79), not initiate (No influence), or block reclosing (Stops 79):
Table 2-10
Start Time Overcurrent Protection
On initiation, the automatic reclosure function is informed that a trip command was issued and the respective
reclosing program is now being executed.
The binary input messages 2715 „>Start 79 Gnd" and 2716 „>Start 79 Ph" for starting an automatic
reclosure program can also be activated via CFC (fast PLC task processing). Automatic reclosure can thus be
initiated via any messages (e.g. protective pickup) if address 7164 BINARY INPUT is set to Starts 79.
164
Timing diagram showing two unsuccessful reclosing shots
Initiating automatic reclosure
50-1
50N-1
50-2
50N-2
50-3
50N-3
51
51N
Start Other
SENS. GROUND FLT (50Ns, 51Ns)
46
BINARY INPUT
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008