Measuring & Calculation Formulas - ABB ANR96 User Manual

ANR96 - USER MANUAL
2.5) MEASURING & CALCULATION FORMULAS
Phase Voltage RMS
Line Current RMS
Active Power
Reactive Power
Appearent Power
ϕ
Cos
Power Factor
Active Energy
P
∑
2
v
L iN k
=
=
k 1
V L iN
P
P
∑
2
i
L iN k
=
=
k 1
I L i
P
P
⋅
∑
v L i L
iN k i k
=
=
k 1
W L i
P
P
(
⋅
∑
v L i L
iN k
i
=
=
k 1
Q
L i
P
= ⋅
A L i V L iN I L iN
W L i
ϕ
=
cos
L i
2 +
Q
W L
i
W L i
=
PF Li
A L i
∞
=
∫
dt
W L i
Wh Li
0
)
Δ
−
k
2
L i
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