Siemens 7SG164 Ohmega 400 Series Manual page 80

Ohmega 400 Series operating time Phase to Earth Faults
45
40
35
30
25
20
15
10
5
0
0 10
Ohmega 400 Series operating time Phase to Phase Faults
50
45
40
35
30
25
20
15
10
5
0
0 10 20
©2011 Siemens Protection Devices Limited
20 30 40 50
Fault Position %
30 40 50
Fault Position %
7SG164 Ohmega 400 Series Performance Specification
60 70 80
Figure 1
60 70 80 90
Figure 2
SIR = 0.1
SIR = 1.0
SIR = 10
SIR = 30
90 100
SIR = 0.1
SIR = 1.0
SIR = 10
SIR = 30
100
Chapter 5 Page 12 of 13