Siemens siprotec 7SA522 User Manual

Functions
6-70 7SA522 Manual
C53000-G1176-C119-2
Figure 6-39 Tripping logic for the controlled zone Z1B
Tripping Logic The output signals generated by the individual zones are combined in the actual trip-
ping logic to form the trip output signals. The signal 'LV*HQ7ULS is the general
trip command (refer to Fig. 6-35 up to 6-39). The single-pole information 'LV7ULS
S/'LV7ULSS/'LV7ULSS/ implies that tripping will take place sin-
gle-pole only. The 'LV7ULS/ signal indicates the three-pole trip command. Fur-
thermore, the zone that initiated the tripping is identified; if single-pole tripping is pos-
sible, this is also alarmed, as shown in the zone logic diagrams (Figures 6-35 up to 6-
39). The actual generation of the commands for the trip relay takes place in the tripping
logic of the device. (refer to Sub-section 6.17.4).
&
No
Yes
VW$5!=%
≥1
≥1
≥1
(further)
not available
 7HOHSURW'LVW
Dis Sig active
&
Dis relZ1B/T1B L3
Dis relZ1B/T1B L2
Dis relZ1B/T1B L1
&
&
&
L1
L2
L3
&
&
1pole
tripping
for 2pole
faults
L2
L1
L3
L1
L1
L2
L3
L2
L3
L3
L2
L1
L1
L2
L3
„1“
Dis FD Z1B L3
Dis FD Z1B L2
Dis FD Z1B L1
≥1
≥1
 7%SKDVH
T0
T0
 7%PXOWLSKDVH
&
&
≥1
L1
L2
L3
L1
L2
L3
L1
L2
L3
L3
L2
L1
L3
L2
L1
Tripping logic
of the distance
protection
&
&
&
L1
L2
L3
L1
L2
L3
≥1
&
per Phase
&
≥1
L1
L2
L3
Z1B instantaneous
(refer Fig. 6-24)
3825 Dis trip Z1B3p1
3803 Dis trip1polL2
3804 Dis trip1polL3
3805 Dis trip L123
3813 Dis trip Z1B1p
3801 Dis G–trip
3850 Dis trip Z1B Tel
=1
3826 Dis trip Z1B3pm
3780 Dis T1B exp.
3802 Dis trip1polL1
ENABLE Z1B
3611
ENABLE ARzones
0383
Only 1ph AR
0382
1357
„1“

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English