4 Technical Data
334
7SD610 Manual
C53000-G1176-C145-4
Inrush stabilization
Conditioning for Transformers (optional)
Emergency operation
Frequency
Standard precision of operational measured values
Transformer error at n
.
I
N
(class) 0.5 % to 50.0 % Steps 0.1 %
Further restraint quantities
(adaptive self-restraint)
Frequency deviations, delay time differ-
ences, harmonics, synchronous quality,
jitter
Restraint ratio
2. Inrush stabilization I
2fN
/I
fN
0 % to 45 % Steps 1 %
Max. current for restraint I
N
= 1 A 1.1 A to 25.0 A Increment 0.1 A
I
N
= 5 A 5.5 A to 125.0 A
Crossblock Function Can be switched on/off
Max. action time for crossblock CROSSB 2HM 0.00 s to 60.00 s
or 0 (crossblock dis-
abled)
or ∞ (active until
dropout)
Increments 0.01 s
Matching of Vector Group 0 to 11 (x 30°) Increment 1
Star-point conditioning earthed or non-earthed
(for each winding)
Communication failure see section „Time Overcurrent Protection“
Operating range 0.8 ≤ f/f
N
≤ 1.2
stable when starting machine
The standard precision of the operational measured values of the differential protection from ± 0.5% of the rated op-
erational current is ensured up to a transformer error adjustment of 2:1.
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