Siemens siprotec 7SA522 User Manual page 237

Dis Telep. off
4003 >Dis.Telep. Blk
Transiente Block.
I , I , I
L1 L2 L3
U , U , U
L1 L2 L3
Dis. PICKUP
Dis. forward
Dis.Pickup L1
Dis L1 forw.
Dis.Pickup L2
Dis L2 forw.
Dis.Pickup L3
Dis L3 forw.
„1"
4006
>DisTel Rec.Ch1
4010
>DisTel Rec.Ch2
4007
>Dis.T.RecCh1L1
4008
>Dis.T.RecCh1L2
4009
>Dis.T.RecCh1L3
Dis. PICKUP
Figure 6-53 Logic diagram of the blocking scheme (one line end)
7SA522 Manual
C53000-G1176-C119-2
≥1
≥1
d
(u,i)
dt
40 ms
! " TrqÃQ…‚y‚t
0 T
&
0 T
&
0 T
&
0 T
&
GvrÃ8‚svtÃ
! !
Three terminals
Two terminals
! ( U…7yxÃXhv‡ÃUv€r
Three terminals
Two terminals
Three terminals
Two terminals
Three terminals
Two terminals
Three terminals
Two terminals
&
!  U…7yxÃ7y‚pxUv€rÃ
≥1
T T
≥1
≥1
≥1
Sryrh†rÃ9ryh’
2108
T 0
Functions
4052
Dis.Telep.OFF
4060
Dis.Jump Blocking
&
4056
Dis.T.SEND
&
4070
Dis.T.BL STOP
&
Dis.T.SEND L1
4057
&
4082
Dis.T.BL STOPL1
&
4058
Dis.T.SEND L2
&
4083
Dis.T.BL STOPL2
&
4059 Dis.T.SEND L3
&
4084
Dis.T.BL STOPL3
&
Dis.T.Trans.Blk
4068
Transient Block.
&
Dis Enable Z1B/T1B L1
&
Dis Enable Z1B/T1B L2
&
Dis Enable Z1B/T1B L3
6-89