Siemens SIPROTEC 7UT613 series Manual page 458

4 Technical Data
Operating Times of the Definite Time Stages
Dropout to Pickup Ratios
Frequency
Dropout times of the thermal curve
Figure 4-13 Trip times of the Thermal Characteristic for Unbalanced Load Protection
458
Pickup time / dropout time
Pickup time at frequency
1
minimum )
Dropout time, approx.
1
) for high-speed relays, the pick-up times decrease by 4.5 ms
Current stages
Frequency influence
50 Hz 60 Hz
41 ms 34 ms
23 ms 20 ms
≥ 0.5
approx. 0.95 for I
/I
2 N
within the frequency tagging range
16.7 Hz
106 ms
60 ms
7UT613/63x Manual
C53000-G1176-C160-2