Siemens SIPROTEC easy 7SJ45 Handbuch Seite 71

Manual 7SJ45
500
100
3.20
20
1.60
10
0.80
5
0.40
3
2
0.20
1
0.10
0.5
0.05
0.3
0.2
↑ ↑ ↑ ↑
0.1
T [s]
p
0.05
0.05 0.1
Figure 2-10 Reset time characteristic as per IEC Type A
(normal inverse, N INV)
Normal inverse /
(Type A)
C53000-K1174-C001-7
0.2 0.3 0.5
I/Ip
æ ö
ç 9.7 ÷
⋅ s [ ]
---------------------------- -
t = T P
ç ÷
2
( ⁄ )
è ø
1 – I I P
100
20
10
5
3
2
1
0.5
0.3
0.2
0.1
0.05
0.9
1.1
Figure 2-11
Normal inverse /
(Type A)
2 3 5
I/Ip
Trip characteristic as per IEC Type A
(normal inverse, N INV)
æ
ç 0.14
------------------------------------- -
t =
ç
0.02
( ⁄ )
è
I I
P
Technical Data
3.20
1.60
0.80
0.40
0.20
0.10
0.05
↑ ↑ ↑ ↑
10 20
← ← ← ←
T [s]
p
ö
÷
⋅ s [ ]
T
÷
P
ø
1
–
71