open Circuit Breaker
4.2 proteCtIon FunCtIonS
type n units
long delay
Current of
adjustment
Time of
Adjustment (s)
Short delay
Current of
adjustment
Time of Adjustment
(s) @ 10xIr
I²t Off
Instantaneous
Current of
adjustment
Shortage current to ground
Current of
adjustment
Time of
Adjustment (s)
I²t Off
30 | ABW
Iu = In x ...
Ir = Iu x ...
tr @ 1,5xIr
tr @ 6xIr
tr @ 7,2xIr
Precision: ± 15% ou < 100ms
Isd = Ir x ...
Precision: ± 10%
tsd (I²t Off) @ 10xIr
tsd (I²t On) @ 10xIr
Opening min. time (ms)
Opening max. time (ms)
Ii = In x ...
Opening time: < 50ms
Ig = In x ...
Precision: ± 10% (Ig>0,4In); ±20% (Ig≤0,4In)
tg (I²t Off) @ 1xIn
tg (I²t On) @ 1xIn
Opening min. time (ms)
Opening max time (ms)
0,5
0,6
0,7
0,8
0,80 0,83 0,85 0,88 0,9 0,93 0,95 0,98 1,0
12,5 25
50
100 200 300 400 500 Off
0,5
1
2
4
0,34 0,69 1,38 2,7
1,5
2
3
4
0,05 0,1
0,2
0,3
0,1
0,2
0,3
20
80
160 260 360
80
140 240 340 440
2
3
4
6
0,2
0,3
0,4
0,5
0,05 0,1
0,2
0,3
0,1
0,2
0,3
20
80
160 260 360
80
140 240 340 440
English
0,9
1,0
8
12
16
20
5,5
8,3
11 13,8 Off
5
6
8
10
0,4
0,4
8
10
12
15
0,6
0,7
0,8
1
0,4
0,4
Off
Off
Off
Off