Dranetz hdpq xplorer User Manual

F-6
PQ Parameter Calculations, continued
Calculations
(continued)
Description Abbreviation
Wiring Configuration
Formula
Units Precision
Residual Current Ires Delta or Wye only
RMS of
)
where n=512 samples
Amps 0.3 % of
Reading
+/- 0.15%
of FS
Net Current Inet Wye only
RMS of
where n=512 samples
Amps 0.4 % of
Reading
+/- 0.15%
of FS
Watts, Real Power W-a Wye, uses measured
values
Delta uses calculated
phantom Neutral
Val ues
where n=512 samples
Watts 0.2 % of
Reading
+/- 0.05%
of FS
W-b
W-c
W-d
W-total W = W
a
+W
b
+W
c
Volt-Amps VA-a Wye, uses measured
values
Delta uses calculated
phantom Neutral
Val ues
VA = V
RMS
x I
RMS
VA 0.2 % of
Reading
+/- 0.05%
of FS
VA - b
VA - c
VA - d
VA - t o t a l A = VA
a
+VA
b
+VA
c
Vo l t - A m p s
Reactive
VAR-a Wye, uses measured
values
Delta uses calculated
phantom Neutral
Val ues
VAR
Calculated using Fun-
damentals of V and I
obtained from DFT
VAR 0.2 % of
Reading
+/- 0.05%
of FS
VA R - b
VA R - c
VA R - d
VA R - t o t a l VA R - To t a l =
VA R
a
+VAR
b
+VAR
c
Watts,
Fundamental
Wf-a Wye, uses measured
values
Delta uses calculated
phantom Neutral
Val ues
where n=512 samples
Waveform data
derived from DFT
Watts 0.2 % of
Reading
+/- 0.05%
of FS
Wf-b
Wf-c
Wf-d
Wf-total W
fund
Total=W
fund
a+
W
fund
b+Wf
und
c
VA Vector Total VA-tot Wye and Neutral based
measurements
VA 0.2 % of
Reading
+/- 0.05%
of FS
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Dranetz hdpq xplorer Specifications

General

Brand	Dranetz
Model	hdpq xplorer
Category	Measuring Instruments
Language	English