Instantaneous Measured Earth Fault Protection (50G) - Siemens Reyrolle 7SR45 Argus Device Manual
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Technical Data
4.6 Instantaneous Measured Earth Fault Protection (50G)
4.6
Instantaneous Measured Earth Fault Protection (50G)
Operation
Elements
Setting range I
s
Time delay
Operate level I
op
Reset level
Basic operate time
(with auxiliary power/load current):
Operate time delay
Inhibited by
Disengaging time
84
Non-directional
Measured earth
0.2 ⋅ I
to 20.0 ⋅ I
rated
rated
Δ 0.1 ⋅ I
rated
0.00 s to < 20.00 s, Δ 0.01 s
≥ 20.00 s to < 100.00 s, Δ 0.1 s
≥ 100.00 s to 600.00 s, Δ 1 s
100 % I
, ± 5 %
s
> 0.2 ⋅ I
to 0.9 ⋅ I
setting: ≥ 90 % I
rated
rated
> 1 ⋅ I
to 20 ⋅ I
setting: ≥ 94 % I
rated
rated
2 ⋅ I
: 25 ms, ± 15 ms,
s
5 ⋅ I
: 20 ms, ± 15 ms
s
T
+ T
, ± 1 % or ± 30 ms
basic
d
Binary input or inrush detector
< 50 ms with auxiliary power supply
Reyrolle, 7SR45, Device Manual
C53000-G7040-C101-2, Edition 09.2020
op
op
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