5 Calculation formulas
37
Total Budeanu reactive
energy
(consumed and supplied)
E
QB+tot
E
QB-tot
varh
𝐸
𝑄𝐵+𝑡𝑜𝑡
= ∑ 𝑄
𝐵𝑡𝑜𝑡+
(𝑖)𝑇(𝑖)
𝑀
𝑖=1
𝑄
𝐵𝑡𝑜𝑡+
(𝑖) = {
𝑄
𝐵𝑡𝑜𝑡
(𝑖) 𝑓𝑜𝑟 𝑄
𝐵𝑡𝑜𝑡
(𝑖) > 0
0 𝑓𝑜𝑟 𝑄
𝐵𝑡𝑜𝑡
(𝑖) ≤ 0
𝐸
𝑄𝐵−𝑡𝑜𝑡
= ∑ 𝑄
𝐵𝑡𝑜𝑡−
(𝑖)𝑇(𝑖)
𝑀
𝑖=1
𝑄
𝐵𝑡𝑜𝑡−
(𝑖) = {
|𝑄
𝐵𝑡𝑜𝑡
(𝑖)| 𝑓𝑜𝑟 𝑄
𝐵𝑡𝑜𝑡
(𝑖) < 0
0 𝑓𝑜𝑟 𝑄
𝐵𝑡𝑜𝑡
(𝑖) ≥ 0
where:
i
is subsequent number of the 10/12-period measure-
ment window
Q
Btot
(i)
represents total reactive power Q
Btot
calculated in
i
-th measuring window
T(i)
represents duration of
i
-th measuring window (in
hours)
Total reactive energy of
fundamental component
(consumed and supplied)
E
Q1+tot
E
Q1-tot
varh
𝐸
𝑄1+𝑡𝑜𝑡
= ∑ 𝑄
1𝑡𝑜𝑡+
(𝑖)𝑇(𝑖)
𝑀
𝑖=1
𝑄
1𝑡𝑜𝑡+
(𝑖) = {
𝑄
1𝑡𝑜𝑡+
(𝑖) 𝑓𝑜𝑟 𝑄
1𝑡𝑜𝑡
(𝑖) > 0
0 𝑓𝑜𝑟 𝑄
1𝑡𝑜𝑡
(𝑖) ≤ 0
𝐸
𝑄1−𝑡𝑜𝑡
= ∑ 𝑄
1𝑡𝑜𝑡−
(𝑖)𝑇(𝑖)
𝑀
𝑖=1
𝑄
1𝑡𝑜𝑡−
(𝑖) = {
|𝑄
1𝑡𝑜𝑡−
(𝑖)| 𝑓𝑜𝑟 𝑄
1𝑡𝑜𝑡
(𝑖) < 0
0 𝑓𝑜𝑟 𝑄
1𝑡𝑜𝑡
(𝑖) ≥ 0
where:
i
is subsequent number of the 10/12-period measure-
ment window
Q
1tot
(i)
represents total reactive power Q
1tot
calculated in
i
-th measuring window
T(i)
represents duration of
i
-th measuring window (in
hours)
Total apparent energy
E
Stot
VAh
𝐸
𝑆𝑡𝑜𝑡
= ∑ 𝑆
𝑡𝑜𝑡
(𝑖)𝑇(𝑖)
𝑀
𝑖=1
where:
i
is subsequent number of the 10/12-period measure-
ment window
S
tot
(i)
represents total apparent power S
tot
calculated in
i
-
th measuring window
T(i)
represents duration of
i
-th measuring window (in
hours)
Summary of Contents for PQM-700
Page 85: ...85 Notes...
