ABB PSTX30 Installation And Commissioning Manual page 104

7.16.9 Voltage imbalance warning
A warning signal will be given if the voltage imbalance
between the phases is higher than the set warning level.
Check the main voltage.
Voltage imbalance warning is configured with the
following parameters:
Parameter
22.09 Voltage imb level
22.10 Voltage imb out
22.11 Voltage imbalance
7.16.10 Electronic overload time-to-trip
warning
A warning signal will be given if the predicted time before
EOL trip has fallen below the set warning level.
Electronic overlad time-to-trip warning is configured
with the following parameters:
7
Parameter
23.01 EOL time-to-trip time
23.02 EOL time-to-trip out
23.03 EOL time-to-trip
7.16.11 Total Harmonic Distortion (THD)
warning
A warning signal will be given if the actual power system
voltage differ from the ideal sine wave. THD has exceeded
the warning level.
Check the quality of the network
Total Harmonic distortion (THD) warning is configured
with the following parameters:
Parameter
23.04 THD(U) level
23.05 THD(U) out
23.06 THD(U)
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Description
The warning level is specified
in %.
Specifies the Event groups this
warning belongs to.
Enables Voltage imbalance
warning.
Description
Sets how long time before the
EOL protection trips the warning
is activated.
Specifies the Event groups this
warning belongs to.
Enables EOL time to trip
warning.
.
Description
Sets the warning level for Total
Harmonic Distortion (U).
Specifies the Event groups this
warning belongs to.
Enables Total Harmonic
Distortion warning.
Setting range Default value
1 ... 100 5
Eventgroup 0 .. 6 4
Off, On Off
Setting range Default value
1 ... 1000 s 5 s
Eventgroup 0 ... 6 4
Off, On Off
Setting range Default value
1 ... 100 % 10 %
Eventgroup 0 ... 6 4
Off, On Off