User manual
PQM-702, PQM-703 Operating Manual
58
4.3 3-phase wye network with N conductor
3-phase wye network with N conductor
(parameters not mentioned are calculated as for single-phase)
Parameter
Method of calculation
Name
Designa-
tion
Unit
Total active power
P
tot
W
Total Budeanu reactive
power
Q
Btot
var
Total reactive power
acc. to IEEE 1459
Q
1
+
var
where:
U1
+
is the voltage positive sequence component (of the
fundamental component
I1
+
his the current positive sequence component (of the
fundamental component)
1
+
is the angle between components U
1
+
and I
1
+
Effective apparent power
S
e
VA
where:
Effective apparent distor-
tion power
S
eN
VA
where:
Total Budeanu distortion
power
D
Btot
var
Total Power Factor
PF
tot
-
Total displacement
power factor
cos
tot
DPF
tot
-
Total tangent
tan
tot
-
where: Q
tot
= Q
Btot
, when Budeanu method was chosen,
Q
tot
= Q
1tot
, when IEEE 1459 method was chosen,
Total active energy (con-
sumed and supplied)
E
P+tot
E
P-tot
Wh
calculated as for the split-phase network
Total Budeanu reactive
energy
(consumed and supplied)
E
QB+tot
E
QB-tot
varh
calculated as for the split-phase network