Underfrequency Protection
Setting Values
Pickup values f<
40.00 Hz to 70.00 Hz
Increments of 0.01 Hz
Dropout differential
20 mHz to 2 000 mHz
Increments of 10 mHz
Time delay T
0.00 s to 600.00 s
Increments of 0.01 s
Minimum voltage
3.000 V to 175.000 V
Increments of 0.001 V
Times
Pickup times f<
Angle difference method
50 Hz
60 Hz
Approx. 70 ms + OOT
80
Approx. 60 ms + OOT
Filtering method
50 Hz
60 Hz
Approx. 65 ms + OOT
Approx. 54 ms + OOT
Dropout times f<
60 ms to 80 ms
Dropout
Frequency
Parameterizable dropout differential
Minimum voltage
The larger dropout differential (=
| pickup value – dropout threshold |
) of the following
2 criteria is used:
Dropout differential derived from
Dropout ratio
105 % for the Minimum voltage parameter
Minimum absolute dropout differential
150 mV secondary
Operating Ranges
Voltage range
5 V to 230 V (phase-phase)
Frequency range
Angle difference method 10 Hz to 80 Hz
Filtering method
25 Hz to 80 Hz
Tolerances
Frequency f<
f
rated
- 0.20 Hz < f < f
rated
+ 0.20 Hz
± 5 mHz at V = V
rated
f
rated
- 3.0 Hz < f < f
rated
+ 3.0 Hz
± 10 mHz at V = V
rated
Time delay T(f<)
1 % of the setting value or 10 ms
Minimum voltage
1 % of the setting value or 0.5 V
11.23
80
OOT (Output Operating Time): Additional delay of the output medium used, for example, 5 ms with fast relays, see chapter
Technical Data
11.23 Underfrequency Protection
1160
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Содержание 6MD85
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