Siemens SIPROTEC easy 7SJ45 Handbuch Seite 75

Manual 7SJ45
500
200
100
15.00
10.00
5.00
20
10
2.00
5
1.00
3
0.50
2
↑ ↑ ↑ ↑
1
D [s]
0.5
0.3
0.2
0.1
0.05
0.05 0.1 0.2
Figure 2-18 Reset time characteristic as per ANSI,
very inverse, (V INV)
æ
ç
t ---------------------------- -
=
ç
è
1 –
C53000-K1174-C001-7
0.9
0.3 0.5
I/Ip
ö
4.32 ÷
⋅ s [ ]
D
÷
2
( ⁄ )
ø
I I P
500
200
100
20
10
5
3
2
1
0.5
0.3
0.2
0.1
0.05
1.1 2 3
Figure 2-19 Pickup characteristic as per ANSI,
very inverse, (V INV)
æ
ç 3.922
t ---------------------------- -
=
ç
2
( ⁄ )
è
I I P
Technical Data
5 10
I/Ip
ö
÷
⋅ s [ ]
0.0982 D
+
÷
ø
– 1
15.00
10.00
5.00
2.00
1.00
0.50
20
↑ ↑ ↑ ↑
D [s]
75