7SR10 Performance Specification
© 2018 Siemens Protection Devices Limited
Chapter 3 Page 47 of 52
Section 3: Supervision Functions
3.1
46BC Broken Conductor
3.1.1 Reference
Parameter
Value
NPS to PPS ratio
20,21…100 %
t
f
Delay setting
0.03,04,20.0,20.1,100,101,1000,1010…..14400 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 +60 °C
≤
5 %
f
nom
± 5 %
harmonics to f
cutoff
≤
5 %
3.1.3
Operate and Reset Time
Attribute
Value
t
basic
Basic operate time 1xI
n
to 0 A
40 ms
Operate time
t
f
+ t
basic
,
±
1 % or
±
20 ms
Repeatability
±
1 % or
±
20 ms
Variation
f
nom
± 5 %
harmonics to f
cutoff
≤
5 %
Содержание 7SR10 Argus Series
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