Siemens SINAMICS PERFECT HARMONY GH180 Function Manual page 98

Advanced Motor Protection and RTD Protection Functions
6.18 Device 51 - Fixed Inverse Time Overcurrent
Figure 6-28
96
2
10
1
10
0
10
0 0.1 0.2
stator current to pickup current ratio
ANSI Extremely Inverse Reset Time
ANSI
extremely inverse reset time
TDM=1.0
0.3 0.4 0.5
Advanced Motor Protection for Variable Speed Operation
0.6 0.7 0.8
Manual, AA, A5E46373908A
0.9