Manual

Rockwell Automation Publication 1426-UM001F-EN-P - November 2013 61
Metering Chapter 4
Energy Metering
The power monitor meters the following energy consumption parameters:
• Real Energy Consumption (kWh, GWH), Forward, Reverse, Net
• Reactive Energy Consumption (kVARh, GVARh) Forward, Reverse, Net
• Apparent Energy Consumption (kVAh, GVAh) Net
• Current Consumption (Amp-h)
Applications
This function applies to all PowerMonitor 5000 models.
Example
A large energy value could be displayed as 123,456,789,234.567 kWh where
123,456 is the GWh metering result and 789,234.567 is the kWh metering result.
Energy results (kWh, kVARh, and kVAh) roll over to 0 after the value of
9,999,999,999,999 or 10
13
-1 is reached.
Setup
Only basic metering setup is required for energy metering.
Table 8 - Energy Metering Metered Parameters
Parameter Description Range Units
GWh_Fwd Total real energy consumed 0…9,999,999 GWh
kWh_Fwd Total real energy consumed 0.000…999,999 kWh
GWh_Rev Total real energy produced 0…9,999,999 GWh
kWh_Rev Total real energy produced 0.000…999,999 kWh
GWh_Net The sum of forward and reverse real energy ± 0…9,999,999 GWh
kWh_Net The sum of forward and reverse real energy ± 0.000…999,999 kWh
GVARh_Fwd Total reactive energy consumed 0…9,999,999 GVARh
kVARh_Fwd Total reactive energy consumed 0.000…999.999 kVARh
GVARh_Rev Total reactive energy produced 0…9,999,999 GVARh
kVARh_Rev Total reactive energy produced 0.000…999.1000 kVARh
GVARh_Net Total sum of forward and reverse reactive energy ±0…9,999,999 GVARh
kVARh_Net Total sum of forward and reverse reactive energy ±0.000…999,999 kVARh
GVAh Total apparent energy consumed 0…9,999,999 GVAh
kVAh Total apparent energy consumed 0.000…999,999 kVAh
GAh Accumulated amp-hours consumed 0…9,999,999 GAh
kAh Accumulated amp-hours consumed 0.000…999,999 kAh