Siemens US2:9810T24V User Manual page 187

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