Siemens 7SR224 - Time Delayed Overcurrent; Reference; Operate and Reset Level

7SR224 Argus Performance Specification
2.9 51 Time Delayed Overcurrent
2.9.1 Reference
Parameter Value
Is
Setting 0.05, 0.06… 2.5 xIn
char
Characteristic setting
IEC-NI, -VI, -EI, -LTI;
ANSI-MI, -VI, -EI; DTL
Manufacturer specific curves
See ‘Performance Specification Appendix 1’
Tm
Time Multiplier setting 0.025, 0.05… 1.6
2 to 20 xIs
I
Applied current IDMTL
(for operate time) DTL
5 xIs
t
d
Delay setting 0, 0.01… 20 s
t
res
Reset setting ANSI DECAYING, 0, 1… 60 s
2.9.2 Operate and Reset Level
Attribute Value
I
op
Operate level
105 % Is, ± 4 % or ± 1% In
Reset level
≥ 95 % I
op
Repeatability
± 1 %
-10 °C to +55 °C
≤ 5 %
Variation
f
nom
- 3 Hz to f
nom
+ 2 Hz
≤ 5 %
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