Functions
6-263
7SA6 Manual
C53000-G1176-C156-2
The delay time
T-PoleDiscrep.
(address
3932
) determines how long a breaker
pole discrepancy condition of the feeder circuit breaker, i.e. only one or two poles
open, may be present before the pole discrepancy supervision issues a three-pole trip
command. This time must clearly be longer than the duration of a single-pole
automatic reclose cycle. The time should be less than the permissible duration of an
unbalanced load condition which is caused by the unsymmetrical position of the circuit
breaker poles. Conventional values are 2 s to 5 s.
6.18.3 Settings
Note:
The indicated secondary current values for setting ranges and default settings
refer to I
N
= 1 A. For the nominal current 5 A the current values are to be multiplied
by 5.
Addr.
Setting Title
Setting Options
Default Setting
Comments
3901
FCT BreakerFail
ON
OFF
ON
Breaker Failure Protection is
3902
I> BF
0.05..20.00 A
0.10 A
Pick-up threshold I>
3903
1p-RETRIP (T1)
NO
YES
YES
1pole retrip with stage T1 (local
trip)
3904
T1-1pole
0.00..30.00 sec;
∞
0.00 sec
T1, Delay after 1pole start (local
trip)
3905
T1-3pole
0.00..30.00 sec;
∞
0.00 sec
T1, Delay after 3pole start (local
trip)
3906
T2
0.00..30.00 sec;
∞
0.15 sec
T2, Delay of 2nd stage (busbar
trip)
3907
T3-BkrDefective
0.00..30.00 sec;
∞
0.00 sec
T3, Delay for start with defective
bkr.
3908
Trip BkrDefect.
NO
trips with T1-trip-signal
trips with T2-trip-signal
trips with T1 and T2-trip-
signal
NO
Trip output selection with defec-
tive bkr
3909
Chk BRK CON-
TACT
NO
YES
YES
Check Breaker contacts
3921
End Flt. stage
ON
OFF
OFF
End fault stage is
3922
T-EndFault
0.00..30.00 sec;
∞
2.00 sec
Trip delay of end fault stage
3931
PoleDiscrepancy
ON
OFF
OFF
Pole Discrepancy supervision
3932
T-PoleDiscrep.
0.00..30.00 sec;
∞
2.00 sec
Trip delay with pole discrepancy
Содержание siprotec 7SA6
Страница 2: ...Siemens Aktiengesellschaft Book No C53000 G1176 C156 2 ...
Страница 18: ...xviii 7SA6 Manual C53000 G1176 C156 2 ...
Страница 32: ...Introduction 1 14 7SA6 Manual C53000 G1176 C156 2 ...
Страница 82: ...Hardware and Connections 2 50 7SA6 Manual C53000 G1176 C156 2 ...
Страница 119: ...SIPROTEC 4 Devices 4 25 7SA6 Manual C53000 G1176 C156 2 Figure 4 20 CFC Logic example ...
Страница 190: ...Configuration 5 62 7SA6 Manual C53000 G1176 C156 2 ...
Страница 559: ...Control During Operation 7 45 7SA6 Manual C53000 G1176 C156 2 Figure 7 45 Circuit breaker trip test in DIGSI 4 ...
Страница 652: ...Installation and Commissioning 8 78 7SA6 Manual C53000 G1176 C156 2 ...
Страница 724: ...Technical Data 10 56 7SA6 Manual C53000 G1176 C156 ...
Страница 800: ...Appendix A 76 7SA6 Manual C53000 G1176 C156 2 ...
Страница 866: ...Appendix B 66 7SA6 Manual C53000 G1176 C156 2 ...