Chauvin Arnoux C.A 8436 Manual De Instrucciones página 108

Con:
NechSec − 1
∑
[ ] [ ][ ] [ ][ ]
VF V F n AF A F n
P 3 = 0 ⋅ 0
1
n = 0
NechSec − 1
NechPer
∑
[ ]
Q 3 = VF V F [ ] [ 0 n −
1
4
n = 0
Observación: El factor de potencia fundamental también es llamado factor de desplazamiento.
Tangente total
[ ]
Q 3
[ ]
1
Tan 3 =
[ ]
P 3
1
b) Sistema de distribución con neutro virtual
Factor de potencia total.
P[3]
PF[3]=
S[3]
Factor de potencia fundamental total.
P [3]
1
DPF[3]=
√
(P [3]² + Q [3]²)
1 1
Con:
(
2
NechSec-1
Σ Σ
VF[i][n].AF[i][n]
P [3]=
1
i=0 n=0
(
2 NechSec-1
Σ
Σ
VF[i]
Q [3]=
1
i=0 n=0
Observación: El factor de potencia fundamental también es llamado factor de desplazamiento.
Tangente total
Q [3]
1
Tan[3]=
QP [3]
1
c) Sistema trifásico sin neutro
Factor de potencia total
P
[ ] 3
[ ]
P F 3
=
PF
S
[ ] 3
Factor de potencia fundamental total
[ ]
P 3
[ ]
1
DPF 3 =
[ ] [ ]
2 2
P 3 + Q 3
1 1
Con:
Si referencia en L1
NechSec −
1
∑
[ ]
P 3 = ⋅ U
1
NechSec
n = 0
Si referencia en L2
NechSec −
1
∑
[ ]
U
P 3 = ⋅
1
NechSec
n = 0
NechSec − 1 NechSec
∑ ∑
[ ][ ] [ ][ ]
VF V F n AF A F n
+ 1 ⋅ 1 +
n = 0 n
NechSec − 1
∑
[ ][ ]
AF
VF
] ⋅ A F 0 n + V F ] [ 1 [ n −
n = 0
)
[
]
NechPer
n -
. AF[i][n]
4
1
1
[ ][ ] [ ][ ]
2 n ⋅ A 2 n +
NechSec
1
1
[ ][ ] [ ][ ]
n A n
0 ⋅ 0 +
NechSec
− 1
[ ][ ] [ ][ ]
VF V F n AF A F n
2 ⋅ 2
= 0
NechSec − 1
NechPer
∑
[ ][ ]
AF
VF
] ⋅ A F 1 n + V F
4
n = 0
)
NechSec − 1
∑
[ ][ ] [ ][ ]
⋅ − U 0 n ⋅ A 1 n
n = 0
NechSec − 1
∑
[ ][ ] [ ][ ]
U n A n
⋅ − 1 ⋅ 2
n = 0
108
NechPer
[ ][ ]
AF
[ ] [ 2 n − ] ⋅ A F 2 n
4