User manual
PQM-702, PQM-703 Operating Manual
56
Reactive energy of fun-
damental component
(consumed and supplied)
E
Q1+
E
Q1-
varh
where:
i is subsequent number of the 10/12-period measure-
ment window,
Q
1
(i) represents reactive power of fundamental compo-
nent Q
1
calculated in i-th measuring window,
T(i) represents duration of i-th measuring window (in
hours)
Apparent energy
E
S
VAh
where:
i is subsequent number of the 10/12-period measure-
ment window,
S(i) represents apparent power S calculated in i-th
measuring window
T(i) represents duration of i-th measuring window (in
hours)
4.2 Split-phase network
Split-phase network
(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 of
fundamental component
Q
1tot
var
Total apparent power
S
tot
VA
Total apparent distortion
power
S
Ntot
VA
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,