Siemens 7SR105 Rho User Manual page 92

Table 1-26
Operation
Setting Range I
s
Setting Range I
s
2 Stage Time Delays
Operate Level
Disengaging time
Operate time following delay
Triggered by
Inhibited by
Timer By pass
Table 1-27
Temperature input type
(Temperature Coefficient Resistance based on
DIN/IEC 60751 standard)
Temperature input Alarm
Temperature input Trip
Operate value
Response time
Sensing current
Maximum lead resistance
Table 1-28
Number of supervisable circuits
Number of BI's Required
Table 1-29
Setting
Operate level
Reset level
Element basic operate time
© 2018 Siemens Protection Devices
50 BF Circuit Breaker Fail
Temperature Inputs
74 T/CCS Trip/Close Circuit Supervision
50BCL Break Capacity Limit
Current check - Phase and Measured Earth with
independent settings Mechanical Trip
CB Faulty Monitor
0.05,0.055...2.0xI
n
0.01,0.015,...2.0xI
n
Timer 1 20...60000 ms
Timer 2 20...60000 ms
100 % I , ± 5 % or ± 1 % xI
s
< 20 ms
Tcbf ± 1 % or ± 20 ms
Any function mapped as trip contact
Binary/Virtual Input
Yes, 50BF CB Faulty Input
Cu10 (0.00427),
Ni100 (0.00618),
Pt100 (0.00385),
Ni120 (0.00672),
Pt250 (0.00385),
Ni250 (0.00618), and
Pt1000 (0.00385)
0,1,2...250 ºC
0,1,2...250 ºC
100 % T , ± 2 % or ±2 ºC,
set
For Cu10: ± 2 % or ± 5 ºC
< 3 s
< 0.5 mA
25 Ω/lead
For Cu10: 2.5 Ω/lead
3 x Trip and 3 x Close
1 or 2 per function
xI
1.0, 1.5... 50
n
100 % I , ± 5 % or ± 1 % I
s
≥ 95 % I
op
0 to 2xI : 20 ms or ± 10 ms
s
0 to 5xI : 15 ms or ± 10 ms
s
7SR105 Rho Performance Specification
n
n
Chapter 3 Page 16 of 17