Siemens siprotec 7SA6, Manual

Page: 392 / 876

Functions
6-202
7SA6 Manual
C53000-G1176-C156-2
2711 >AR Start
general fault detection for the internal automatic
reclosure function (only required for action time),
2715 >Trip 1pole AR
trip command 1-pole for the internal automatic reclosure
function,
2716 >Trip 3pole AR
trip command 3-pole for the internal automatic reclosure
function,
If only three-pole reclose cycles are to be executed, it is sufficient to assign the binary
input “
>Trip 3pole AR
” (F.No
2716
) for the trip signal. Figure 6-109 shows an
example. The overreaching stages of the external protection are again enabled by
“
AR 1.CycZoneRel
” (F.No
2889
) and if applicable by further cycles.
Figure 6-108 Connection example with external protection device for 1-/3-pole reclosure;
AR control mode =
with TRIP
Figure 6-109 Connection example with external protection device for 3-pole reclosure;
AR control mode =
with TRIP
7SA6
AR Start
Tripping L1
Tripping L2
Tripping L3
L+
external
protection device
Relay Pickup
3-phase coupling
L–
L–
L–
only 1-pole
(if nec. for other AR)
>AR Start
>Trip L1 AR
>Trip L2 AR
>Trip L3 AR
AR 1.CycZoneRel
AR 1p Trip Perm
AR Program1pole
7SA6
trip
Tripping
L+
external
protection device
Relay Pickup
L–
L–
L+
(if nec. for other AR)
>AR Start
AR 1p Trip Perm
AR 1.CycZoneRel