PF9800 series User
’
s Manual
Copyright
©
EVERFINE, Copy or spread without authorization is prohibited.
19
D
Frequency
Voltage/Current
frequency
Hz
Peak Ratio
(No for PF9804 )
Voltage Peak ratio
CF
A
Current Peak ratio
CF
B
5.3 Function of harmonic measurement(PF9810/PF9811)
Harmonic component of voltage and current is analyzed in harmonic measurement.
The calculated parameters can be measured in the harmonic measuring state , as
shown in table 5.4.
Table 5.4 Display content of each window in harmonic measuring state
Parameter
Unit/Symbol
Display window
Voltage
true effective value
V
A
Current
true effective value
A/mA
(PF9811/PF9810)
B
Power
Active power
W
C
Power Factor
Power factor
PF
D
Frequency
Voltage(Current )frequency
Hz
Peak Ratio
(No for PF9804 )
Voltage Peak ratio
CF
A
Current Peak ratio
CF
B
Total/Single
harmonic
measurement
Total/each harmonic voltage
V
A
Total/each harmonic current
A/mA
(PF9811/PF9810)
B
Total
harmonic
distortion/Relativ
e value of single
harmonic
measurement
Total
harmonic
voltage
distortion/Relative
value
of
harmonic voltage
V%
A
Total
harmonic
current
distortion/Relative
value
of
harmonic current
A%
B
The measurement function fully meets the requirements of IEC61000-3-2 standard in
harmonic measuring state.
The calculation method of harmonic analysis is IEC. There are two methods IEC and
CSA to select in computer communication software .
(1) Two calculation methods of total harmonic distortion and each harmonic
distortion
IEC method(
)
：
Computes the ratio of the rms value of the 2nd to 50th order
