Siemens SIPROTEC 7SJ80

Influencing Variables for Pickup and Dropout
Auxiliary DC voltage in range 0.8 ≤ V
Aux
/V
AuxNom
≤ 1,15 1 %
Temperature in range –5 °C (23 °F) ≤ Θ
amb
≤ 55 °C (131 °F) 0.5 %/10 K
Frequency in the range of 25 Hz to 70 Hz
Frequency in the range of 0.95 ≤ f/f
Nom
≤ 1.05 (f
Nom
= 50 Hz or 60 Hz) 1 %
Frequency outside range 0.95 ≤ f/f
Nom
≤ 1.05 Increased tolerances
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
at instantaneous value of 50-3/50N-3 elements
1 %
1 %
Increased tolerances
Transient overreaction for τ > 100 ms (with full displacement) <5 %
Technical Data
4.2 Definite-time Overcurrent Protection
364 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017