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Technical Data
12.10 Voltage Protection
Overvoltage Protection with Any Voltage
12.10.5
Setting Values
Measured value
Method of measurement
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Pickup value
Time delay
Dropout ratio
Dropout
The greater dropout differential (= | pickup value – dropout value |) of the following 2 criteria
applies:
Dropout differential derived from the parameter Dropout ratio
If this parameter is not available, a dropout ratio of 95 % applies for the overvoltage and of 105 % for the
undervoltage functionality.
Minimum absolute dropout differential
Times
Operate time with time delay = 0 ms, typical
Operate time with time delay = 0 ms, maximum
Dropout time, typical
Dropout time, maximum
Frequency Operating Range
0.9 ≤ f/f
≤ 1.1
rated
10 Hz ≤ f < 0.9 f
1.1 f
< f ≤ 90 Hz
rated
f < 10 Hz
f > 90 Hz
If the function Overvoltage protection with any voltage is used in a 1-phase function group, the measured-value parameter is not
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visible.
If you have selected the method of measurement = RMS value, do not set the threshold value under 10 V.
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63
OOT (Output Operating Time): additional delay of the output medium used, see Chapter
838
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Measured phase-to-ground voltage V
Measured phase-to-ground voltage V
Measured phase-to-ground voltage V
Measured phase-to-phase voltage V
Measured phase-to-phase voltage V
Measured phase-to-phase voltage V
Measured phase-to-phase voltage V
Measured phase-to-phase voltage V
Measured phase-to-phase voltage V
Calculated voltage V0
Fundamental component
RMS value
0.300 V to 340.000 V
0.00 s to 60.00 s
0.90 to 0.99
rated
A
B
C
AB
BC
CA
AB
BC
CA
Increments of 0.001 V
Increments of 0.01 s
Increments of 0.01
150 mV sec.
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Approx. 25 ms + OOT
at 50 Hz
Approx. 22 ms + OOT at 60 Hz
Approx. 30 ms + OOT at 50 Hz
Approx. 26 ms + OOT at 60 Hz
Approx. 25 ms + OOT
Approx. 30 ms + OOT
According to specified tolerances
Slightly expanded tolerances
Active
12.1.4 Relay Outputs
SIPROTEC 5, Merging Unit 6MU85, Manual
C53000-G5040-C074-1, Edition 01.2020
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