Instantaneous Overcurrent Protection (50); Instantaneous Overcurrent Protection - Siemens Reyrolle 7SR45 Argus Device Manual

Technical Data

4.2 Instantaneous Overcurrent Protection (50)

4.2

Instantaneous Overcurrent Protection (50)

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
80
Non-directional
Phase
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