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MAVOWATT 230, 240, 270 & 270-400
Description
Phase of
fundamental
averaged over
200 ms.
Derived from DFT sine
expansion output.
Phase of
fundamental on
individual cycle.
Derived from DFT
output based on sync
channel.
Amps RMS of
fundamental
Derived from DFT
NEMA Current
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
48
Abbreviation
Wiring Configuration
Ideg-a
Any
Ideg-b
Ideg-c
Ideg-d
Icycdeg-a
Any
Icycdeg-b
Icycdeg-c
Icycdeg-d
Ifnd-a
Any
Ifnd-b
Ifnd-c
Ifnd-d
Iunbal-a
Any
Iunbal-b
Iunbal-c
Iseqzro
Delta or Wye only
Iseqpos
Iseqneg
Iunbalneg
Iunbalzro
Formula
where n=1 for 1 st har-
monic.
Averaged over 10/12
cycles
where g= phase
where n=1 for 1 st
harmonic
I pk is calculated from
the 1 st harmonic of
DFT
or
or
GMC-I Messtechnik GmbH
Units
Precision
Degree +/- 1°
Degree +/- 1°
Volts
+/- 0.2 % of
Reading
9 KHz BW
%
+/- 1 %
None
+/- 1 %
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