Hioki PW3335 - 6.2 Error Indication

5.5 Calculation Formulas Specifications
160
(2) Current calculation formulas
Item (RECTIFIER) Calculation formulas
RMS value (AC+DC)
Simple average value (DC)
AC component RMS value (AC)
Fundamental wave component RMS
value (FND)
I
1
from harmonic calculation formula
Waveform peak value
Displays the maximum absolute value from the above with its polarity.
Total harmonic distortion
I
thd
from harmonic calculation formula
Ripple rate
Crest factor
Maximum current ratio
M: Number of samples between synchronization timing points; s: Sample point number
∑
1M－
0=s
2
s
)(
M
1
= iI
∑
1M
0s
sDC
M
1
－
=
= iI
2
DC
2
AC
)()( III －=
Maximum value from M values
Minimum value from M values
spk
: iI
+
s－pk
: iI
=
pk
I
100×
||×2
|)(|
=
DC
-pkpk+
rf
I
II
I
－
I
I
I
pk
cf
=
λ
=MCR
cf
I