Siemens siprotec 7SA6 - Page 332

Functions
6-142 7SA6 Manual
C53000-G1176-C156-2
Figure 6-79 Logic diagram of the directional comparison scheme (one line end)
For earth fault protection, only directional comparison pickup is offered for
transmission via protection interface. The directional comparison pickup scheme is
only effective if the parameter
132 Teleprot. E/F has been set to Direction
Comparison over Protection Interface
in all devices of the setup. In the
event of an error, the indication
Par. different is output.
Two terminals
EF Telep. off
EF TeleprotBLK
EF Pickup
&
EF forward
3203Send Prolong.
T0
&
EF Enable Trip
>EF Rec.Ch1
>EF Rec.Ch2
Three terminals
Two terminals
Three terminals
„1“
3202 Line Config.
≥1
&
Trip command
&
Transient blocking
≥1
&
≥1
EF Tele SEND
EF TeleprotOFF
≥1
&
≥1
Echo function
section 6.8.1.5
FNo 1313
FNo 1318
FNo 1319
FNo 1381
FNo 1384
Weak infeed
tripping
acc. Fig. 6-89
&
3208Release Delay
T0