Fluke 1744 - Manual (Page 52)

Power Quality Logger
Logger Parameters with Function A
43
Distortion power. Basic
value on 200 ms per
phase
2 2 2
bas bas bas bas
Q P S D − − =
Distortion power per
interval per phase
∑
=
⋅ =
M
j
j bas
D
M
D
1
1
D
bas j
: 200 ms value
M: Number of 200 ms intervals per logging interval
Total distortion power on
three phases
∑
=
=
3
1 k
k total
D D
Distortion power per
phase
Q
Q
S
P
PF ⋅ = = λ
Total distortion power on
three phases
total
total
total
total
total total
Q
Q
S
P
PF ⋅ = = λ
Tangent φ per phase
P
Q
= ϕ tan
Total tangent φ on three
phases
total
total
total P
Q
= ϕ tan
Active power of the
fundamental per phase
Basic value for 200 ms.
1
1 P Ph
bas
=
Active power of the
fundamental per phase per
interval
∑
=
⋅ =
M
j
j bas bas
Ph
M
Ph
1
1
1
1