1735
Users Manual
50
I
V
S
×
=
apparent
power
S
P
PF
=
=
λ
power
factor
2
2
2
Q
P
S
D
−
−
=
distortion
power
2
1
2
1
1
cos
Q
P
P
+
=
ϕ
cosine
cos
ϕ
Note
The distortion power is > zero if the waveform of current is different
from the voltage waveform.
Total Harmonic Distortion
%
100
1
)
(
40
2
2
×
=
∑
=
V
V
THD
h
h
Total Harmonic Distortion
V1 to RMS of the fundamental
Vh to RMS of the h-th harmonic
Summary of Contents for 1735
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