Siemens siprotec 7SA6 User Manual

Functions
6-94 7SA6 Manual
C53000-G1176-C156-2
Sequence Figure 6-53 shows the logic diagram of the permissive underreach transfer trip
scheme for one line end.
Figure 6-53 Logic diagram of the permissive underreach transfer trip (PUTT) scheme using
Z1B (one line end)
The permissive transfer trip only functions for faults in the forward direction. Accord-
ingly, the first zone Z1 and the overreaching zone Z1B of the distance protection must
definitely be set to
Forward:address1301 Op. mode Z1 and 1351 Op. mode Z1B,
refer also to Sub-section 6.2.4.2 under the margin heading “Independent Zones Z1 up
to Z5” and “Controlled Zone Z1B”.
Distance Teleprotection
>Dis.Telep. Blk
≥1
Dis PU Z1 L1
&
Dis PU Z1 L2
&
Dis PU Z1 L3
&
Dis PU Z1
&
Dis. forward
2103Send Prolong.
T0
T0
T0
T0
&
&
&
&
>Dis.T.RecCh1L1
>Dis.T.RecCh1L3
>Dis.T.RecCh1L2
&
&
&
≥1
≥1
≥1
Dis Rel Z1B L2
Dis Rel Z1B L3
Weak Infeed
Tripping
Dis Rel Z1B L1
>DisTel Rec.Ch1
>Dis.T.Rec.Ch2
Three Terminals
Two Terminals
Three Term.
Two Term.
„1“
2102 Type of Line
≥1
&
Dis. T. SEND L1
Dis. T. SEND L2
Dis. T. SEND L3
Dis. T. SEND
FNo 4003
FNo. 4006
FNo. 4010
FNo. 4007
FNo. 4008
FNo. 4009
FNo. 4052
FNo. 4057
FNo. 4058
FNo. 4059
FNo. 4056
Dis.T.Carr.Fail
FNo. 4005
FNo. 4055
FNo. 4088
FNo. 4089
FNo. 4090
FNo. 4091
FNo. 4092
FNo. 4093
Protection Data
FNo. 3464
121
&
&
&
&
≥1
≥1
≥1
&
&
POTT over PI
PUTT
Teleprot. Dist.
„0”
≥1
POTT over PI
PUTT
POTT over PI
PUTT
POTT over PI
PUTT
121 Teleprot. Dist.
From Protection Interface
from
PI
≥1
refer Fig. 6-89
>Dis.Telep.OFF
Interface
Dis.T.Carr.Fail
Topol.complet
Dis.T.RecL1Dev2
Dis.T.RecL2Dev2
Dis.T.RecL3Dev2
Dis.T.RecL1Dev3
Dis.T.RecL2Dev3
Dis.T.RecL3Dev3

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English