Siemens SIPROTEC easy 7SJ45 - Page 72

Manual 7SJ45 Technical Data
C53000-K1174-C001-7 72
Figure 2-12 Reset time characteristic as per IEC Type B
(very inverse, V INV)
Figure 2-13 Trip characteristic as per IEC Type B
(very inverse, V INV)
Very inverse /
(Type B)
0.05 0.1 0.2 0.3 0.5
0.9
0.05
0.1
0.2
0.3
0.5
1
2
3
5
10
20
100
500
0.05
0.10
0.20
0.40
0.80
1.60
3.20
↑
↑↑
↑
T
p
[s]
I/Ip
t[s]
t
43.2
1II
P
⁄()–
2
-----------------------------
èø
ç÷
ç÷
æö
T
P
s[]⋅=
Very inverse /
(Type B)
1.1
2 3 5 10 20
0.05
0.10
0.20
0.40
0.80
1.60
3.20
↑
↑↑
↑
←
←←
←
T
p
[s]
I/Ip
0.05
0.1
0.2
0.3
0.5
1
2
3
5
10
20
100
t[s]
t
13.5
II
P
⁄ 1–
--------------------
èø
æö
T
P
s[]⋅=