7.6. Power and Energy
Power and Energy displays a table with all important power parameters. The related Trend screen
shows the changes over time of all measuring values in the table.
Table
The table displays power data for each phase and in total: real or active power (kW), apparent power
(kVA, the product of rms voltage and current), reactive power (kVAR, the reactive component of
apparent power caused by phase shift between AC current and voltage in inductors and capacitors),
power factor (TPF, the ratio of real power to apparent power for the total rms including harmonics),
displacement power factor (DPF, the ratio of real power to apparent power for fundamental), and the
rms values of voltage and current.
A popup table with energy usage by phase and in total can be activated by pressing
【
F3
】
–Energy
function key. The table shows real energy (kWh), apparent energy (kVAh) and reactive energy (kVARh).
The energy measurement starts when Power&Energy is started. The readout can be reset with function
key F5.
Available function keys:
F3
Access the Energy popup screen.
F4
Access the Trend screen.
F5
Switch between RUN and HOLD.
Energy popup screen
F3
Close Energy
F4
Access the Trend
F5
Reset, the time clock starts all over again
Trend
The figures in the table are instantaneous values that update constantly. While changes in these values
over time are recorded in the Trend. The traces build up from the right side. The readings in the header
correspond to the most recent measurements plotted on the right.
Available function keys:
F1
Switch parameter being displayed.
F4
Return to the Table screen.
F5
Switch between RUN and HOLD.
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