Calculations
(continued)
Description
Abbreviation
Wiring Configuration
Formula
Units
Precision
RMS Deviation
Subtraction of 1
cycle RMS from
adjacent cycles.
Used for cyclic
waveshape
transient trigger
system.
Vcycw-a
Vcycw-b
Vcycw-c
Vcycw-d
Single phase
Split phase
Wye
Vrms(cycle 1) -
Vrms(cycle 2)
Volts
+/- 0.2% of
Reading *
15 KHz BW
Vcycw-ab
Vcycw-bc
Vcycw-ca
Measured for Delta
Not Calculated for Wye
Maximum
magnitude value of
Crest.
Largest Absolute
magnitude of
samples in a ½
cycle. Used for
cyclic waveshape
transient trigger
system.
Vpk-a
Vpk-b
Vpk-c
Vpk-d
Single phase
Split phase
Wye
Largest Absolute
magnitude of 256
samples (1/2 cycle)
Volts
+/- 0.2% of
Reading *
Vpk-ab
Vpk-bc
Vpk-ca
Measured for Delta
Not Calculated for Wye
Phase of
fundamental on
individual cycle.
Derived from DFT
output based on
sync channel.
Vcycdeg-a
Vcycdeg-b
Vcycdeg-c
Vcycdeg-d
Single phase
Split phase
Wye
where g= phase
where n=1 for 1
st
har-
monic
Degree +/- 1°
Vcycdeg-ab
Vcycdeg-bc
Vcycdeg-ca
Measured for Delta
Calculated for Wye
Phase of
fundamental
averaged over
200ms.
Derived from DFT
sine expansion
output.
Vdeg-a
Vdeg-b
Vdeg-c
Vdeg-d
Single phase
Split phase
Wye
where n=1 for 1
st
har-
monic
Averaged over 10/12
cycles
Degree +/- 1°
Vdeg-ab
Vdeg-bc
Vdeg-ca
Measured for Delta
Calculated for Wye
* +/- 0.05% of FS for input < 40V
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