Siemens 7SR12 Argus - Page 146

7SR11 & 7SR12 Performance Specification
©2017 Siemens Protection Devices Limited Chapter 3 Page 34 of 56
0.1
1
10
100
1000
1 10 100
Current (multiples of setting)
Time
(sec)
2
3
4
5
6
8
20
30
40
50
60
80
Moderately Inverse
Extremely Inverse
Very Inverse
Figure 2.12-2 ANSI IDMTL Operate Curves (Time Multiplier=1)