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open Circuit Breaker
p and S type 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) @ 1xIn
I²t Off
leakage current to ground (optional)
Current of
adjustment (A)
Time of
Adjustment (s)
pre-alarm
Current of
adjustment
32 | ABW
Ir = In 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) 20
Opening max. time (ms) 80
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) 20
Opening max. time (ms) 80
Ig
Alarm (ms)
Trip (ms)
Precision: ± 15%
Ip = Ir x ...
tp @ 1,2xIp
0,4
0,5
0,6
0,7
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
80
160 260 360
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
80
160 260 360
140 240 340 440
0,5
1
2
3
140 230 350 800 950
140 230 350 800
0,6 0,65 0,7 0,75 0,8 0,85 0,9 0,95
1
5
10
15
English
0,8
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
5
10
20
30
20
25
30
35
Off
Off
Off
Off
Off
1
Off
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