Siemens SIPROTEC 7UT613 series Manual page 436

4 Technical Data
Harmonic Restraint (Transformers)
Operating Times (Transformers)
Conditioning for Transformers
Operating Range Frequency (Transformers)
436
Inrush restraint ratio
(2nd harmonic) I
/I
2fN fN
Restraint ratio further (n-th) harmonic
(either 3rd or 5th) I
/I
nfN fN
Crossblock function
Max. action time for crossblock
Pickup time / dropout time with single-side infeed
Pickup time at frequency
> min high-speed relays
I
Diff
high-speed relays
high-speed relays
I
>>
Diff
min high-speed relays
Dropout time, approx.
Dropout ratio
Matching of vector group
Starpoint conditioning
Frequency influence within the frequency tagging range
10 % to 80 %
see also Figure 4-24-2
10 % to 80 %
see also Figure 4-3
can be activated / deacti-
vated
2 to 1000 AC cycles
or 0 (crossblock deactivat-
ed)
or ∞ (active until dropout)
50 Hz 60 Hz
30 ms 27 ms
25 ms 22 ms
11 ms 11 ms
6 ms 6 ms
54 ms 46 ms
approx. 0.7
0 to 11 (x 30°)
earthed or non-earthed
(for each winding)
Steps 1 %
Steps 1 %
Steps 1 cycle
16.7 Hz
78 ms
73 ms
20 ms
15 ms
150 ms
Steps 1
see Figure
7UT613/63x Manual
C53000-G1176-C160-2