Siemens 7SC80 Manual page 550

Technical Data
4.15 Ground Fault Detection (Sensitive/Insensitive)
The dropout time curves apply to(Ι/Ι
Pickup Threshold ANSI
ANSI with disk emulation
ANSI with disk emulation
ANSI tolerances
Pickup/dropout thresholds Ι
Pickup time for 2 ≤ Ι/Ι
Dropout time for Ι/Ι
Influencing Variables
Auxiliary DC voltage in range 0.8 ≤ V
Temperature in range –5 °C (23 °F) ≤ Θ
Frequency in the range of 25 Hz to 70 Hz
Frequency in the range of 0.95 ≤ f/f
Frequency outside range 0.95 ≤ f/f
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
550
) ≤ 0.90
EEp
approx. 1.05 · setting value Ι
approx. 0.95 · pickup value
setting value · setting valueΙ
2 % of setting value or 10 mA for Ι
EEp
≤ 20 5 % reference value + 2 % current tolerance, or 30 ms
EEp
5 % reference value + 2 %, or 30 ms
≤ 0.90
EEp
/V
Aux AuxNom
≤ 55 °C (131 °F)
amb
≤ 1.05 (f
Nom
≤ 1.05
Nom
for Ι
EEp EEp
EEp
= 1 A or 50 mA for Ι
N
≤ 1.15 1 %
0.5 %/10 K
= 50 Hz or 60 Hz) 1 %
Nom
Increased tolerances
1 %
1 %
E50417-G1140-C486-A8, Edition 07.2017
/Ι ≥ 0.3; this corresponds to
N
= 5 A
N
SIPROTEC Compact, 7SC80, Manual