Power quality 9810 series - User manual
203 7EN05-0390-08
7. Click Next to view the screen that displays the voltage and current distortion limits for the
harmonic content.
Harmonics 2 to 50 and THD/TDD are displayed, with the corresponding set limits for Voltage
Distortion % and Current Distortion %.
8. Click Finish to save your changes.
The Advanced PQ screen shows the new configuration.
Configuring RVC
To configure RVC:
1. Select RVC Enable.
2. Click Edit to configure your meter’s RVC feature.
NOTE: You must enable the Sag/Swell module before the meter can start monitoring and
detecting RVC.
3. Configure the settings as needed:
Parameter Description
Enabled
Disabled: ION Setup has detected that the Sag/Swell module is
disabled. Go to Alarming > Sag/Swell and enable Sag/Swell
first for the meter to detect RVC.
Yes: RVC monitoring is on.
No: RVC monitoring is off.
Threshold
Specifies, as a percentage, the RMS voltage limit that must be
exceeded for an RVC event to occur.
Hysteresis
Specifies, as a percentage, the difference in magnitude between the
start and end thresholds for an RVC event.
Rapid Voltage Change Setup
4. Click Send to save your changes.
The Advanced PQ screen shows the new configuration.
Rapid Voltage Change
Rapid Voltage Change (RVC) is a quick transition in RMS voltage between two steady-state
conditions, during which the voltage does not exceed the sag/swell thresholds.
You can configure the Sag/Swell module to detect and measure RVC and record the event in the
meter’s Event Log.
For more information on the Sag/Swell module, see ION Reference, available on
www.usa.siemens.com/pds.
Harmonics
Harmonics are integer multiples of the fundamental frequency of the power system.
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