Contrel EMA90 - Page 11

EMA90 - USER MANUAL
-11-
Harmonic analyzes:
Cooley Tukey algorithm.
dt
Qh
Φ
Qh
Φ
dt
Wh
Φ
Wh
Φ
A
L
A
L
A
L
A
Φ
Q
L
Q
L
Q
L
Q
Φ
W
L
W
L
W
L
W
Φ
I
I
L
I
L
L
I
Φ
V
V
L
V
L
L
V
Φ
P
v
L
ij
k
V
L
ij
dt
Q
L
i
Qh
L
i
P
k
∫
∞
=
∫
∞
=
++=
++=
++=
+
+
=
+
+
=
=
∫
∞
=
∑
=
0
33
Energy Reactive
0
33
Energy Active
321
3
rentPhaseAppea-3
321
3
Power Reactive Phase-3
321
3
Power Active Phase-3
3
32
1
3
Current System Phase-3
3
3223
12
3
Voltage Line Phase-3
2
Voltage Line
0
Energy Reactive
1
64N 1-Nk0
N
πnk2
1N
0n
sinh(n)j
1N
0n
N
πnk2
cosh(n) H(k)
=≤≤






∑
−
=
−
∑
−
=






=
for