Dropout time, typical
Approx. 25 ms + OOT
Dropout time, maximum
Approx. 30 ms + OOT
Frequency Operating Range
0.9 ≤ f/f
rated
≤ 1.1
According to specified tolerances
10 Hz ≤ f < 0.9 f
rated
1.1 f
rated
< f ≤ 90 Hz
Slightly expanded tolerances
f < 10 Hz
f > 90 Hz
Active
Tolerances
Currents, method of measurement = fundamental
component
1 % of the setting value or 5 mA (I
rated
= 1 A)
or 25 mA (I
rated
= 5 A)
Currents, method of measurement = RMS value
(33 % harmonics, in relation to fundamental component)
Up to 30th harmonic
1 % of the setting value or 5 mA (I
rated
= 1 A)
or 25 mA (I
rated
= 5 A)
Up to 50th harmonic, f
rated
= 50 Hz
3 % of the setting value or 20 mA (I
rated
= 1 A)
or 100 mA (I
rated
= 5 A)
Up to 50th harmonic, f
rated
= 60 Hz
4 % of the setting value or 20 mA (I
rated
= 1 A)
or 100 mA (I
rated
= 5 A)
Time delay
1 % of the setting value or 10 ms
Direction-determination angle error
1 °
Influencing Variables for Threshold Values
Transient excess pickup in method of measurement =
fundamental component, for τ > 100 ms (with
complete unbalance)
< 5 %
Stage with Inverse-Time Characteristic Curve
Setting Values
Rotation angle of the reference voltage
-180° to +180°
Increments of 1°
Directional mode
Forward
Backward
–
Method of measurement
Fundamental component
RMS value
–
Threshold value
47
1 A @ 100 Irated
0.030 A to 35.000 A
Increments of 0.001 A
5 A @ 100 Irated
0.15 A to 175.00 A
Increments of 0.01 A
Dropout
Disk emulation
Instantaneous
–
Time multiplier
0.00 to 15.00
Increments of 0.01
Minimum time of the curve
0.00 s to 1.00 s
Increments of 0.01 s
Additional time delay
0.00 s to 60.00 s
Increments of 0.01 s
11.17.2
47
If you have selected the method of measurement = RMS value, do not set the threshold value under 0.1 l
rated,sec
.
Technical Data
11.17 Directional Overcurrent Protection, Phases
SIPROTEC 5, Low-Impedance Busbar Protection, Manual
949
C53000-G5040-C019-C, Edition 04.2021