ABB PSTX Series Installation And Commissioning Manual page 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
22.09 Voltage imb level
22.10 Voltage imb out
22.11 Voltage imbalance
22.12 Voltage imbalance trip time
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
23.01 EOL time-to-trip time
23.02 EOL time-to-trip out
23.03 EOL time-to-trip
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
23.04 THD(U) level
23.05 THD(U) out
23.06 THD(U)
23.09 THD(U) trip time
Description
Sets the permitted Voltage
imbalance level between the
phase with the highest voltage
and the phase with the lowest
voltage.
Identifies the Event groups this
warning is part of.
Enables Voltage imbalance
warning.
User set time until warning in
seconds.
Description
Sets how long time before the
EOL protection trips the warning
is on.
Identifies the Event groups this
warning is part of.
Enables EOL time to trip
warning.
Description
Sets the warning level for Total
Harmonic Distortion (U).
Identifies the Event groups this
warning is part of.
Enables Total Harmonic
Distortion warning.
User set time until warning in
seconds.
1SFC132081M0201 | Installation and commissioning manual | Functions
Setting range Default value
1 ... 10 % 5 %
Eventgroup 0 .. 6 0000100
Off, On Off
0.1...100.0 s 5.0 s
Setting range Default value
1 ... 1000 s 5 s
Eventgroup 0 ... 6 0000100
Off, On Off
Setting range Default value
1 ... 10% 10%
Eventgroup 0 ... 6 0000100
Off, On Off
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