50Bf Circuit Breaker Fail; Reference; Operate And Reset Level - Siemens 7SR10 Argus Series Manual

3.2

50BF Circuit Breaker Fail

3.2.1 Reference

Parameter
Is Setting
I4 Setting
t Stage 1 Delay setting
CBF1
t Stage 2 Delay setting
CBF2

3.2.2 Operate and Reset Level

Attribute
I Operate level
op
I Reset level
reset
Repeatability
Variation
3.2.3 Operate and Reset Time
Attribute
Stage 1
t
op
Stage 2
Repeatability
Overshoot
Disengaging time
© 2018 Siemens Protection Devices Limited
-10 °C to +60 °C
f ± 5 %
nom
Value
0.050, 0.055... 2.0xI
n
0.050, 0.055... 2.0xI
n
20, 25... 60000 ms
20, 25... 60000 ms
Value
100 % I , ± 5 % or ± 1 % I
s
<100 % I , ± 5 % or ± 1 % I
op
± 1 %
≤ 5 %
≤ 5 %
Value
t , ± 1 % or ± 20 ms
CBF1
t , ± 1 % or ± 20 ms
CBF2
± 1 % or ± 20 ms
< 2 x 20 ms
< 20 ms
7SR10 Performance Specification
n
n
Chapter 3 Page 48 of 52