7SR10 Performance Specification
© 2018 Siemens Protection Devices Limited
Chapter 3 Page 48 of 52
3.2 50BF Circuit Breaker Fail
3.2.1 Reference
Parameter
Value
Is
Setting
0.050, 0.055… 2.0xI
n
I4
Setting
0.050, 0.055… 2.0xI
n
t
CBF1
Stage 1 Delay setting
20, 25… 60000 ms
t
CBF2
Stage 2 Delay setting
20, 25… 60000 ms
3.2.2 Operate and Reset Level
Attribute
Value
I
op
Operate level
100 % I
s
,
±
5 % or
±
1 % I
n
I
reset
Reset level
<
100 % I
op
,
±
5 % or
±
1 % I
n
Repeatability
±
1 %
Variation
-10 °C to +60 °C
≤
5 %
f
nom
± 5 %
≤
5 %
3.2.3 Operate and Reset Time
Attribute
Value
t
op
Stage 1
t
CBF1
,
±
1 % or
±
20 ms
Stage 2
t
CBF2
,
±
1 % or
±
20 ms
Repeatability
±
1 % or
±
20 ms
Overshoot
< 2 x 20 ms
Disengaging time
< 20 ms
Содержание 7SR10 Argus Series
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