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MAVOWATT 230, 240, 270 & 270-400
Description
Volts RMS of
fundamental
Derived from DFT
NEMA Unbalance
Max deviation of the
3 phases from the
average of the 3.
Symmetrical Components
Zero Sequence
Positive Sequence
Negative Sequence
Negative
Unbalance
Zero Unbalance
Frequency Freq
of sync channel
Rapid Voltage
Change
* +/- 0.05 % of FS for input < 40 V
46
Abbreviation
Wiring Configuration
Vfnd-a
Single phase
Vfnd-b
Split phase
Vfnd-c
Wye
Vfnd-d
Vfnd-ab
Measured for Delta
Vfnd-bc
Calculated for Wye
Vfnd-ca
Vunbal-a
Measured for Wye
Vunbal-b
Vunbal-c
Vunbal-max
Vunbal-ab
Measured for Delta
Vunbal-bc
Not Calculated for Wye
Vunbal-ca
Vseqzro
Delta or Wye only
Vseqpos
Vseqneg
Vunbalneg
Vunbalzro
Vfreq
Any
Vrvc-a
Any
Vrvc-b
Vrvc-c
Vrvc-d
Formula
V pk is calculated from
the 1 st harmonic of DFT
V x is channel with
largest deviation from
average
V avg is average of the
three channels
or
or
Max
Deviation
from
1 sec steady state RMS
as defined in NVE-1157
GMC-I Messtechnik GmbH
Units
Precision
Volts
+/- 0.2% of
Reading *
15 KHz BW
%
+/- 1 %
None
+/- 0.15 %
Hz
+/- 10 mHz
%
+/- 0.2 %
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