Siemens siprotec 7SA6 User Manual page 326

Functions
I
L1
I
L2
I
L3
L1
L2
L3
!%$ "DƒÃQD8FVQÃ
I
E
E
7106 >BLOCK O/C Ip
7110 >O/C InstTRIP
T 0
switch onto
fault
!%' TPUAÃUv€rÃ9@G6`
further
stages
Figure 6-84 Logic diagram of the I
6-144
!%# DQÃ
&
I
P
&
3I
0P
!%& D"DƒÃUryr7D
Yes
≥1
No
Yes
No
D"DƒÃTPUA
!%&
–stage (inverse time overcurrent protection IDMT) — illustration for IEC–curves
p
D@8Ã8ˆ…‰r
2660
2642
t
T 0
I
!%#% UÃDƒÃ6qq
&
2652
t
T 0
I
UÃ"DƒÃ6qq
2656
&
UÃDƒÃUv€rÃ9vhy
Ip Pickup L1
≥1
UÃ"DƒÃUv€rÃ9vhy
≥1
C53000-G1176-C133-1
Ip Pickup L2
Ip Pickup L3
Ip Trip L1
Ip Trip L2
Ip Trip L3
3I0p Pickup
3I0p Trip
7SA6 Manual