ABB REJ 527 Technical Reference Manual page 22

REJ 527
22
Technical Reference Manual
t/s
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
1 2 3 4 5 6 7 8 9 10 20 Io/Io>
Fig. 4.1.3.5.-2 Extremely inverse and long-time inverse time characteristics
t/s
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
1 2 3 4 5 6 7 8 9 10
Fig. 4.1.3.5.-3 RI-type and RD-type inverse-time characteristics
t/s
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
k
1.0 2
0.8
0.6
1
0.4
0.9
0.8
0.3
0.7
0.2
0.6
0.5
0.1
0.4
0.05
0.3
0.2
1
t/s
70
60
50
40
30
20
10
9
8
7
6
5
k
4
1. 0
0. 9
3
0 . 8
0 . 7
0. 6
2
0. 5
0 .4
0 .3
1
0.9
0.8
0 .2 0.7
0.6
0.5
0.4
0 . 1
0.3
0. 0 5
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
2 0 I o / Io > 0.02
1
2
ABB Substation Automation
Products and Systems
k
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
Io/Io>
2 3 4 5 6 7 8 9 10 20
k
1.0
0.9
0.8
0.7
0.6
0.2 0.4 0.5
0.05 0.1 0.3
Io/Io>
3 4 5 6 7 8 9 10 20 30 40
1MRS750616-MUM