Siemens 7SC80 Manual page 518

Siprotec compact feeder protection and recloser controller
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Technical Data
4.3 Inverse-Time Overcurrent Protection
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
Transient overreaction for τ > 100 ms (with full displacement)
518
≤ 131.00 °F (55 °C)
amb
≤ 1.05 (f
= 50 Hz or 60 Hz)
Nom
Nom
≤ 1.05
Nom
0.5 %/10 K
1 %
increased tolerances
1 %
1 %
<5 %
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017

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