7SR21 & 7SR22 Performance Specification
Unrestricted Page 36 of 68
© 2013 Siemens Protection Devices Limited
2.14 51 Time Delayed Overcurrent
2.14.1 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
Tm
Time Multiplier setting
0.025, 0.05… 1.6
t
d
Delay setting
0, 0.01… 20 s
t
res
Reset setting
ANSI DECAYING, 0, 1… 60 s
I
Applied Current
(for operate time)
IDMTL
2 to 20 x ls
DTL
5 x Is
2.14.2 Operate and Reset Level
Attribute
Value
I
op
Operate level
105 %
Is
,
±
4 % or
±
1 %
In
Reset level
³
95 %
I
op
Repeatability
±
1 %
Variation
- 10 °C to + 55 °C
£
5 %
f
nom
- 3 Hz to
f
nom
+ 2 Hz
£
5 %
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
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