Siemens 7SC80 Manual page 510

Technical Data
4.2 Definite-Time Overcurrent Protection 50, 50N
Dropout Ratio
Dropout ratio for
- fundamental component, RMS value
- instantaneous value
Tolerances
Current pickup
Delay times
Influencing Variables for Pickup and Dropout Values
Auxiliary direct voltage in the range of 0.8 ≤ V
Temperature in the range of 23.00 °F (-5 °C) ≤ Θ
Frequency in the range of 25 Hz to 70 Hz
Frequency in the range of 0.95 ≤ f/f
Frequencies outside the range of 0.95 ≤ f/f
Harmonics
- up to 10 % 3. harmonic
- up to 10 % 5. harmonic
for instantaneous values of 50-3/50N-3 elements
Transient overreaction for τ > 100 ms (with full displacement)
510
approx. 0.95 for Ι/Ι
approx. 0.90 for Ι/Ι
3 % of setting value or 15 mA at Ι
or 75 mA bei Ι = 5 A
Nom
1 % or 10 ms
/V ≤ 1.15
PS PSNom
≤ 131.00 °F (55 °C)
amb
≤ 1.05 (f = 50 Hz or 60 Hz)
Nom Nom
≤ 1.05
Nom
≥ 0.3
Nom
≥ 0.3
Nom
= 1 A
Nom
1 %
0.5 %/10 K
1 %
increased tolerances
1 %
1 %
increased tolerances
<5 %
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017