When does a Meter require an Uninterruptible Power Supply (UPS)?
Issue
When does a Meter require an Uninterruptible Power Supply (UPS)?
Product Line
ION and Powerlogic meters
Resolution
An UPS or some form of uninterruptible power supply should be used for control power when:
- A meter does not have control power ride through.
- The need to capture alarms, events, waveform captures, or logged data is required in a critical environment.
- Communications to the meter should not be lost.
- Status inputs connected to the meter are being monitored by a PLC or other SCADA systems.
A UPS is not required when:
- The meter is metering only instantaneous data.
- Missing events and data are acceptable during power outages.