Siemens 7SR18 Solkor - Page 146

7SR18 Performance Specification
Unrestricted ©2018 Siemens Protection Devices Limited Page 29
of
Figure 2.7.3-2 ANSI IDMTL Operate Curves (Time Multiplier = 1)
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