Siemens SIPROTEC 4 7UT6 Series - Page 452

Tolerances
Frequencies f>, f<
Undervoltage blocking
Delay times T (f<, f<)
10 mHz (at U = U
N
, f = f
N
)
1 % of the setting value or 0.5 V
1 % of the setting value or 10 ms
Influencing Variables for Pickup
Power supply direct voltage in range
0.8 ≤ U
H
/U
HN
≤ 1.15
1 %
Temperature in range –5 °C ≤ Θ
amb
≤ 55 °C 0.5 %/10 K
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
1 %
1 %
Technical Data
4.16 Frequency Protection
452 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016