Gossen MetraWatt MAVOWATT Serie Guía De Uso página 49

Description
Residual Current
Net Current
Watts, Real Power
Volt-Amps
Volt-Amps
Reactive
Watts,
Fundamental
VA Vector Total
GMC-I Messtechnik GmbH
Abbreviation Wiring Configuration
Ires Delta or Wye only
Inet Wye only
W-a Wye, uses measured
values
W-b
Delta uses calculated
W-c phantom Neutral
Values
W-d
W-total
VA-a Wye, uses measured
values
VA-b
Delta uses calculated
VA-c
phantom Neutral
Values
VA-d
VA-total
VAR-a Wye, uses measured
values
VAR-b
Delta uses calculated
VAR-c phantom Neutral
Values
VAR-d
VAR-total
Wf-a Wye, uses measured
values
Wf-b
Delta uses calculated
Wf-c phantom Neutral
Values
Wf-d
Wf-total
VA-tot Wye and Neutral based
measurements
MAVOWATT 230, 240, 270 & 270-400
Formula
RMS of
)
where n=512 samples
RMS of
where n=512 samples
where n=512 samples
W = W a +W b +W c
VA=V RMS x I RMS
A = VA a +VA b +VA c
VAR
Calculated using Fun-
damentals of V and I
obtained from DFT
VAR-Total=
VAR a +VAR b +VAR c
where n=512 samples
Waveform data
derived from DFT
W fund Total=W fund a+
W fund b+Wf und c
Units Precision
Amps 0.3 % of
Reading
+/- 0.15 %
of FS
Amps 0.4 % of
Reading
+/- 0.15 %
of FS
Watts 0.2 % of
Reading
+/- 0.05 %
of FS
VA 0.2 % of
Reading
+/- 0.05 %
of FS
VAR 0.2 % of
Reading
+/- 0.05 %
of FS
Watts 0.2 % of
Reading
+/- 0.05 %
of FS
VA 0.2 % of
Reading
+/- 0.05 %
of FS
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