Siemens siprotec 7SA6 User Manual

Functions
6-88 7SA6 Manual
C53000-G1176-C133-1
Figure 6-52 Logic diagram of the unblock scheme with Z1B (one line end)
Line Config.
 
Dis Z1B L1
&
Dis Z1B L2
&
Dis Z1B L3
&
Dis Z1B
&
Dis. forward

Send Prolong
 
T0
&
&
&
&
&
&
≥1
≥1
≥1
Dis Ena. Z1B/T1B L2
Dis Ena. Z1B/T1B L3
Dis Ena. Z1B/T1B L1
Three terminals
Two terminals
„1“
≥1
&
Trip command
&
&
&
&
T0
T0
T0
≥1
≥1
≥1
≥1
≥1
≥1
Dis. PICKUP
Unblock 1
Unblock 2
Unblock L1
Unblock L2
Unblock L3
T0
 79
from unblock logic Figure 6-53
from unblock logic Figure 6-53
Dis.Telep.OFF
Dis.T.SEND L1
Dis.T.SEND L2
Dis.T.SEND L3
Dis.T.SEND
&
&
Transient blocking
(section 6.4.1.10)
Echo function
Section 6.4.1.11
&
Two terminals
Three terminals
FNr 4052
FNr 4057
FNr 4058
FNr 4059
FNr 4056
Dis Telep. off
>Dis.Telep. Blk
≥1
FNr 4003
>Dis. RecFail
FNr 4005
Dis.T.Carr.Fail
FNr 4055

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English