1SFC132081M0201 | Installation and commissioning manual | Functions 115
7.18.9 Voltage imbalance warning
The voltage imbalance between the phases is higher than
the set warning level.
Voltage imbalance warning has these parameters:
Parameter Description Setting range Default value
22.09 Voltage imb level Sets the permitted Voltage
imbalance level between the
phase with the highest voltage
and the phase with the lowest
voltage.
1 ... 10 % 5 %
22.10 Voltage imb out Identifies the Event groups this
warning is part of.
Eventgroup 0 .. 6 0000100
22.11 Voltage imbalance Enables Voltage imbalance
warning.
Off, On Off
22.12 Voltage imbalance trip time User set time until warning in
seconds.
0.1...100.0 s 5.0 s
7.18.10 Electronic overload time-to-trip
warning
The predicted time before EOL trip is below the set
warning level. The predicted time to trip assumes that the
current stays on existing level.
Electronic overload time-to-trip warning has these
parameters:
Parameter Description Setting range Default value
23.01 EOL time-to-trip time Sets how long time before the
EOL protection trips the warning
is on.
1 ... 1000 s 5 s
23.02 EOL time-to-trip out Identifies the Event groups this
warning is part of.
Eventgroup 0 ... 6 0000100
23.03 EOL time-to-trip Enables EOL time to trip
warning.
Off, On Off
7.18.11 Total Harmonic Distortion (THD)
warning
The actual power system voltage differs from the ideal
sine wave. THD is higher than the warning level.
Total Harmonic distortion (THD) warning has these
parameters:
Parameter Description Setting range Default value
23.04 THD(U) level Sets the warning level for Total
Harmonic Distortion (U).
1 ... 10% 10%
23.05 THD(U) out Identifies the Event groups this
warning is part of.
Eventgroup 0 ... 6 0000100
23.06 THD(U) Enables Total Harmonic
Distortion warning.
Off, On Off
23.09 THD(U) trip time User set time until warning in
seconds.
7
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