S
PECIFICATION
Page 72
© Voltech 2010
Power Analyzer User Manual
7.4.
M
EASURED
P
ARAMETERS
Abbreviation Description Units
Formula
V
RMS
RMS
Voltage
Volt (V)
T
i
RMS
dt
v
T
V
0
2
1
A
RMS
RMS
Current
Amp (A)
T
i
RMS
dt
i
T
A
0
2
1
F
Frequency
Hertz
(Hz)
W
True Power
Watt
(W)
T
i
i
dt
i
v
T
W
0
1
PF
Power
factor
rms
rms
A
V
Watt
PF
VA
Apparent
Power
Volt-
Amps
(VA)
rms
rms
A
V
VA
VAr
Reactive
Power
Volt-
Amps
Reactive
(VAr)
2
2
W
VA
VAr
V
CF
Voltage
Crest Factor
Value
RMS
Value
Peak
CF
A
CF
Current
Crest Factor
Value
RMS
Value
Peak
CF
V
THD
Voltage
Total
Harmonic
Distortion
%
REF
....
H
H
H
H
H
series
2
2
2
2
2
5
4
3
2
)
0
(
or
REF
H
Vrms
dif ference
2
2
1
