Rms Extreme Under Voltage; Rms Voltage Sag Detection; Rms Voltage Swell Detection - Landis+Gyr E470 Series User Manual

Voltage Quality Measurements
18.3

RMS Extreme Under Voltage

18.4

RMS Voltage Sag Detection

18.5

RMS Voltage Swell Detection

D000058620 en a – E470 Series 3 SMETS2 100 mm – ZCX310 – User Manual and Functional Description
Issue 1.2
The meter detects when the RMS voltage falls below the RMS Extreme
Under Voltage Threshold for longer than the RMS Extreme Under Voltage
Measurement Period and, on detection:

Generates an entry in the Power Quality Event Log (0x00DD
Voltage Under 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 rises back above the threshold.
The meter detects when the RMS voltage falls below the RMS Voltage Sag
Threshold for longer than the RMS Voltage Sag Measurement Period and,
on detection:

Generates an entry in the Power Quality Event Log (0x00DB
Voltage Under 1)
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 rises back above the threshold.
The meter detects when the RMS voltage rises above the RMS Voltage
Swell Threshold for longer than the RMS Voltage Sag Measurement Period
and, on detection:

Generates an entry in the Power Quality Event Log (0x00D7
Voltage Over 1)
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.
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