Siemens 7SR224 - Section 3: Supervision Functions; 46 BC Broken Conductor; Reference; Operate and Reset Level

7SR224 Argus Performance Specification
Section 3: Supervision Functions
3.1 46BC Broken Conductor
3.1.1 Reference
Parameter Value
NPS to PPS ratio 20…100%
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 %
-10 °C to +55 °C
≤ 5 %
Variation
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 ± 20ms
Repeatability
± 1 % or ± 20ms
Variation
f
nom
- 3 Hz to f
nom
+ 2 Hz
harmonics to f
cutoff
≤ 5 %
©2010 Siemens Protection Devices Limited Chapter 3 Page 41 of 49