Instantaneous Measured Earth Fault; Reference; Operate And Reset Level; Operate And Reset Time - Siemens 7SR18 Solkor Manual

7SR18 Performance Specification
2.5 50G Instantaneous Measured Earth Fault
2.5.1

Reference

Parameter
Is Setting
t Delay setting
d
2.5.2

Operate and Reset Level

Attribute
I Operate level
op
Reset level
Repeatability
Transient overreach
(X/R £ 100)
Variation
2.5.3

Operate and Reset Time

Attribute
t Element basic operate time
basic
t Operate time following delay
op
Repeatability
Overshoot time
Disengaging time
Unrestricted Page 24 of 44
-10 °C to +55 °C
f ± 5 %
nom
Value
Switched from 0 to 2 xIs: 35 ms, ± 10 ms
Switched from 0 to 5 xIs: 25 ms, ± 10 ms
t
basic
± 1 % or ± 10 ms
< 40 ms
< 50 ms
Value
0.05, 0.06...2.5,2.55 ...25.0,25.5.... 50 xIn
0.00, 0.01...20.00, 20.10... 100, 101... 1000, 1010...
10000, 10100... 14400 s
Value
100 % Is, ± 5 % or ± 1% In
³ 95 % I
op
± 1 %
£ -5 %
£ 5 %
£ 5 %
, ± 1 % or ± 10 ms
+ t
d
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