Voltage Quality Measurements; Average Rms Voltage; Average Rms Over Voltage; Average Rms Under Voltage - Landis+Gyr E470 Series User Manual

122/143
18

Voltage Quality Measurements

18.1

Average RMS Voltage

18.1.1 Average RMS Over Voltage

18.1.2 Average RMS Under Voltage

18.2

RMS Extreme Over Voltage

© Landis+Gyr
The meter calculates and records the average RMS voltage in the Average
RMS Voltage Profile Data log. The log captures the averaged RMS voltage
for each measurement period which is defined by the Average RMS voltage
measurement period. The meter contains a Profile_AverageVoltage object
which captures the averaged values. Based on a default average capture
time of 10 minutes and a size of 4349 log entries the meter can capture
entries covering more than 720 hours.
The meter detects when the Average RMS value recorded is greater than
the Average RMS Over Voltage Threshold and, on detection:

Generates an entry in the Power Quality Event Log (0x00DF
Voltage Over 3)

Counts the number of such events
If the above event is also configured in the Alarm Filter object the meter this
can be used, with a compatible external communications hub, to send an
alert to a remote Head End System.
An event is also captured in the Power Quality Event Log when the
Average RMS voltage falls back below the threshold.
The meter detects when the Average RMS value recorded is less than the
Average RMS Under Voltage Threshold and, on detection:

Generates an entry in the Power Quality Event Log (0x00E1
Voltage Under 3)

Counts the number of such events
If the above event is also configured in the Alarm Filter object the meter this
can be used, with a compatible external communications hub, to send an
alert to a remote Head End System.
An event is also captured in the Power Quality Event Log when the
Average RMS voltage rises back above the threshold.
The meter detects when the RMS voltage rises above the RMS Extreme
Over Voltage Threshold for longer than the RMS Extreme Over Voltage
Measurement Period and, on detection:

Generates an entry in the Power Quality Event Log (0x00D9
Voltage Over 2)
If the above event is also configured in the Alarm Filter object the meter this
can be used, with a compatible external communications hub, to send an
alert to a remote Head End System.
An event is also captured in the Power Quality Event Log when the RMS
voltage falls back below the threshold.
D000058620 en a – E470 Series 3 SMETS2 100 mm – ZCX310 – User Manual and Functional Description
Issue 1.2 Voltage Quality Measurements