Siemens SIPROTEC 5 Technical Data Manual page 71

Technical Data
11.16 Voltage-Dependent Overcurrent Protection, Phases
Dropout for Definite-Time Overcurrent Protection Stages
Dropout differential derived from the parameter Dropout ratio
If this parameter is not available, a dropout ratio of 95 % applies for overcurrent/overvoltage and of 105 % for
undervoltage functionality.
Minimum absolute dropout differential
Protection-class current transformer
Instrument current transformer
Voltage transformer
Operate Curves and Dropout Characteristic Curves According to IEC
Extension of the operate time during operation with
inrush-current detection
The operate curves and dropout characteristic curves according to IEC can be found in the chapter Technical
Data under Inverse-Time Overcurrent Protection.
Operate Curves and Dropout Characteristic Curves According to ANSI/IEEE
The operate curves and dropout characteristic curves according to IEC can be found in the chapter Technical
Data under Inverse-Time Overcurrent Protection.
Frequency Operating Range
0.9 ≤ f/f ≤ 1.1
rated
10 Hz ≤ f < 0.9 f
1.1 f < f ≤ 80 Hz
rated
f < 10 Hz
f > 80 Hz
Tolerances
Currents, method of measurement = fundamental
component
Currents, method of measurement = RMS value
(33 % part of harmonic in relation to fundamental component)
Up to 30th harmonic
Up to 50th harmonic, f
Up to 50th harmonic, f
Voltage
Operate time for 2 ≤ I/I threshold value ≤ 20
Dropout time for I/I threshold value ≤ 0.90
Time delays
1166
rated
= 50 Hz
rated
= 60 Hz
rated
15 mA sec. (I = 1 A) or
rated
75 mA sec. (I = 5 A)
rated
0.5 mA sec. (I = 1 A) or
rated
2.5 mA sec. (I = 5 A)
rated
150 mV sec.
Approx. 10 ms
According to specified tolerances
Slightly expanded tolerances
Inactive
1 % of the setting value or 5 mA (I
or 25 mA (I = 5 A), (f
rated rated
1 % of the setting value or 5 mA (I
or 25 mA (I = 5 A), (f
rated rated
3 % of the setting value or 20 mA (I
or 100 mA (I = 5 A), (f
rated rated
4 % of the setting value or 20 mA (I
or 100 mA (I = 5 A), (f
rated rated
0.5 % of the setting value or 0.05 V
5 % of the reference (calculated) value
+ 2 % current tolerance or 30 ms
5 % of the reference (calculated) value
+ 2 % current tolerance or 30 ms
1 % of the setting value or 10 ms
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-A, Edition 05.2018
= 1 A)
rated
± 10 %)
= 1 A)
rated
± 10 %)
= 1 A)
rated
± 10 %)
= 1 A)
rated
± 10 %)