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Powers
(excluding neutral – over one second)
NSS = number of samples in a second
Active power of phase (i+1) with i ∈ [0 ; 2].
[ ]
W
i
=
NSS
Apparent power of phase (i+1) with i ∈ [0 ; 2].
Reactive power (without harmonics) of phase (i+1) with i ∈ [0 ; 2].
[]
i
=
VAR
Reactive power (with harmonics) of phase (i+1) with i ∈ [0 ; 2].
Reactive powers are calculated using the filtered signals (without harmonics) –
VF[i][j] and AF[i][j] - in accordance with EDF (French national electricity company)
rules or from the apparent and active powers (with harmonics). The choice of cal-
culation is left up to the user.
Total active power
W[3] = W[0] + W[1] + W[2]
Total apparent power
VA[3] = VA[0] + VA[1] + VA[2]
Total reactive power
VAR[3] = VAR[0] + VAR[1] + VAR[2]
Power ratios
(excluding neutral – over one second)
NSS = number of samples in a second
Power Factor of phase (i+1) with i ∈ [0 ; 2].
Shop for AEMC products online at:
Power Quality Analyzer Model 8335
NSS
−
1
1
∑
[ ][ ] [ ][ ]
⋅
V
i
n
n
=
0
NSS-1
1
.
∑
VF
NSS
n
=
0
PowerMeterStore
www.
⋅
A
i
n
NSC
[]
[
]
.
i
n
AF i
-
4
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n
1.877.766.5412
.ca
119
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