Siemens Siprotec 7UM611 Manual page 307

Influencing Variables for Pickup Values
7UM61 Manual
C53000-G1176-C127-3
4.2 Definite-Time Overcurrent Protection (I>, ANSI 50/51; I>>, ANSI 50/51/67)
Auxiliary direct voltage in range 0.8 ≤
≤ 1.15
U /U
A AN
Temperature in Range
23°F or –5 °C ≤ Θ ≤ 131°F or 55 °C
amb
Frequency in Range 0.95 ≤ f/f
Harmonics
– Up to 10 % 3rd harmonic
– Up to 10 % 5th harmonic
≤ 1 %
≤ 0.5 % / 10 K
≤ 1.05 ≤ 1 %
N
≤ 1 %
≤ 1 %
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