7SR21 & 7SR22 Performance Specification
Unrestricted Page 56 of 68
© 2013 Siemens Protection Devices Limited
Section 3: Supervision Functions
3.1
46BC & 46BC U/C Broken Conductor
3.1.1 Reference
Parameter
Value
Setting (NPS to PPS ratio)
20…100 %
U/C Guard setting
0.05, 0.1 ... 4.95, 5
t
f
Delay setting
0.02…1000 s
3.1.2 Operate and Reset Level
Attribute
Value
I
curr
Operate level
100 %
I
set
±
5 %
Reset level
90 %
I
curr ,
±
5 %
Repeatability
±
1 %
Variation
- 10 °C to + 55 °C
£
5 %
f
nom
- 3 Hz to
f
nom
+ 2 Hz
harmonics to
f
cutoff
£
5 %
3.1.3 Operate and Reset Time
Attribute
Value
t
basic
Basic operate time 1x In to 0 A
40 ms
Operate time
t
f
+
t
basic
,
±
1 % or
±
20 ms
Repeatability
±
1 % or
±
20 ms
Variation
f
nom
- 3 Hz to
f
nom
+ 2 Hz
harmonics to
f
cutoff
£
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 ...
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