A typical voltage swell defect event is illustrated below:
1 Unom
2 RMS Input voltage
3 Swell start threshold
4 Swell duration
5 Swell magnitude
6 Swell end threshold
6.11. Monitoring
The meter monitors and records events in the following categories:
• Network
• Anti-tamper or fraud
• Meter status
• Billing
Note: Some of the monitored events could exist in more than one category.
Monitored events
Event name Network Anti-tamper Status
Power failure Y
Frequency Y
Total Harmonic Distortion (THD) Y
Phase Y
Neutral voltage Y
Neutral current Y
Current reversal Y Y
Internal consumption Y Y Y
Cover opening
Y Y
Terminal Cover opening
Y
Magnetic sensor
Y
Calibration history
Y
Configurations history
Y Y
Watchdog activity
Y