Siemens siprotec 7SA522 - Page 237

Functions
6-897SA522 Manual
C53000-G1176-C119-2
Figure 6-53 Logic diagram of the blocking scheme (one line end)
≥1
&
≥1
Dis L1 forw.
Dis. PICKUP
Dis.Pickup L1
 6HQG3URORQJ
T0
&
&
&
&
&
&
&
&
T0
T0
T0
≥1
I
L1
, I
L2
, I
L3
d
dt
40 ms
(u,i)
U
L1
, U
L2
, U
L3
Dis.Pickup L2
Dis.Pickup L3
Dis L2 forw.
Dis L3 forw.
Dis. forward
&
&
&
&
&
&
&
Dis. PICKUP
2108
5HOHDVH'HOD\
0T
/LQH&RQILJ

Two terminals
>DisTel Rec.Ch1
Three terminals
Two terminals
Three terminals
„1“
≥1
≥1
≥1

7U%ON:DLW7LPH
TT

7U%ON%ORFN7LPH
Transiente Block.
Transient Block.
&
Dis.T.Trans.Blk
Two terminals
Three terminals
Two terminals
Three terminals
Two terminals
Three terminals
Dis Telep. off
4003 >Dis.Telep. Blk
4006
>DisTel Rec.Ch2
4010
>Dis.T.RecCh1L1
4007
>Dis.T.RecCh1L2
4008
>Dis.T.RecCh1L3
4009
Dis.Telep.OFF
4052
Dis.T.SEND
4056
Dis.T.BL STOP
4070
Dis.T.SEND L1
4057
Dis.T.BL STOPL1
4082
Dis.T.SEND L2
4058
Dis.T.BL STOPL2
4083
Dis.T.SEND L3
4059
Dis.T.BL STOPL3
4084
Dis Enable Z1B/T1B L1
Dis Enable Z1B/T1B L2
Dis Enable Z1B/T1B L3
4068
Dis.Jump Blocking
4060