Hioki PQ3100 - Harmonic Calculation Formulas (Voltage, Current, Power)

187
Calculation Formula
CH 1 to 4 sum/AVG Comment
Pharm (Content
percentage)
{(N-th order harmonic average value)
/ (Fundamental average value)} ×
100%
Uphase Vector average
Iphase Vector average
Pphase Vector average
Uthd-F/Uthd-R Calculated from mean squared RMS
values
Ithd-F/Ithd-R Calculated from mean squared RMS
values
KF Calculated from mean squared RMS
values
Signed averaging: Signs of values are included in average calculation.
AVG calculation of Uphase








−
−
cki
ckr
U
U
1
tan
Here,
U
ckr
and
U
cki
use the signed average values for each channel.
AVG calculation of Iphase








−
−
cki
ckr
I
I
1
tan
Here,
I
ckr
and
I
cki
use the signed average values for each channel.
AVG calculation of Pphase
(Averaging process for each channel)






−
k
k
Pharm
Qharm
1
tan
Here,
Qharm
k
and
Pharm
k
use the signed average values for each channel.
(Averaging process of the sum)






−
sumk
sumk
P
Q
1
tan
Here,
Q
sumk
and
P
sumk
use the sum calculation of the signed average results for each channel.
14
Specications