Siemens SIPROTEC 7SJ46, Manual, Page: 69 / 77

Manual 7SJ46 Technical Data
C53000-K1174-C002-4 69
Figure 2-10 Reset time characteristic as per IEC Type A
normal inverse (N INV) Figure 2-11 Trip characteristic as per IEC Type A
normal inverse (N INV)
Normal inverse /
(Type A)
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
9 7
,
1 I I
P
⁄ ( )
2
–
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T
P
s
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=
.
Normal inverse
(Type A)
2 3 5 10 20
0.05
0.10
0.20
0.40
0.80
1.60
3.20
↑↑↑↑
← ← ← ←
T
p
[s]
I/Ip
1.1
100
0.05
0.1
0.2
0.3
0.5
1
2
3
5
10
20
t[
s
]
t
0 14
,
I I
P
⁄ ( )
0 02
,
1 –
---------------------------------------
è ø
ç ÷
ç ÷
æ ö
T
P
s
[ ] ⋅
=
.
.
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