Appendix E-Calculated Power Channel Formulas; Wye Configuration L1-N, L2-N, L3-N - DENT Instruments ELITEpro XC Operator's Manual

Appendix E—Calculated Power Channel Formulas
The following information details the formulas used to calculate the parameters available in the Power
Sum Channels 5 and 6.
W C
YE ONFIGURATION
Measurement
Amps (System)
Volts (System )
kW (System)
kWh (System)
VAR (System)
VARh (System)
VA (System)
VAh (System)
Apparent PF System
Displacement PF System
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L1-N, L2-N, L3-N
Formula
L1 + L2 + L3
3
Sum of three phase to neutral voltages
3
L1 kW + L2 kW + L3 kW
L1 kW + L2 kW + L3 kW
# of samples in an hour
L1 kVAR + L2 kVAR + L3 kVAR
L1 kVAR + L2 kVAR + L3 kVAR
# of samples in an hour
L1 kVA + L2 kVA + L3 kVA
L1 kVA + L2 kVA + L3 kVA
# of samples in an hour
kW System
kVA System
kW System
2
SQRT [(kW System) + (kVAR System)
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Notes/Description
Average of L1, L2, and L3 amp values.
For a Phase to Neutral with WYE
configured meter.
Average of the three phase-to-neutral
voltages.
Sum of L1, L2, and L3 phase watt
values.
Calculated per waveform sample with
a running total of each waveform kWh
for the integration period.
See kWh (System) WYE notes.
See kWh (System) WYE notes.
Measurement calculation information
is provided for reference only.
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