Alarms and alerts 9810 series - User manual
187 7EN05-0390-08
Parameter Value/Range Description
Nominal 1–999,999
The primary RMS voltage for the power system. Use the
line-to-line voltage for a Delta configured device and line-
to-neutral voltage for a Wye configured device.
For more information on configuring Volts Mode, see
"Configuring metering parameters" on page 67.
Swell Limit
Percentage of
nominal
Specifies the swell limit expressed as a percentage of the
nominal voltage.
Sag Limit
Percentage of
nominal
Specifies the sag limit expressed as a percentage of the
nominal voltage.
Hysteresis
Percentage –
see description
Specifies the difference in magnitude between the sag or
swell limit and the threshold for the power quality event to
be considered over.
For example, if the meter has the sag limit set to 90% of
nominal and the hysteresis is set to 2%, this means that in
a sag event, the voltage needs to return to 92% of nominal
for the sag event to be considered over
Alarm priority
See
description
Select the alarm priority you want to associate with
Sag/Swell alarms.
To stop an alarm from being displayed without affecting
other meter features, set the alarm priority to Info Only.
Parameter Value/Range Description
Enable/Disable
Enabled or
Disabled
Specifies if sag/swell recording and alarming is enabled.
Nominal 1–999,999
Specifies the nominal current value used for current sag or
current swell detection.
Pickup
Percentage of
nominal
Specifies the percentage the current must deviate from the
nominal current to be classified as a sag or a swell.
Dropout
Percentage of
nominal
Specifies the percentage of nominal to which the current
must recover to signal the end of the sag or the swell.
Hysteresis N/A
Displays the difference in magnitude between the sag or
swell Pickup and Dropout values.
To change the hysteresis, change the Pickup or Dropout
values.
Alarm priority See description
Select the alarm priority you want to associate with
Sag/Swell alarms.
To stop an alarm from being displayed without affecting
other meter features, set the alarm priority to Info Only.
Current sag/swell setup parameters
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