Thytronic XMR-D - Energy; Power

FUNCTION CHARACTERISTICS
59
• Minimum (I
L1MIN
, I
L2MIN
, I
L3MIN
, ±P
MIN
, ±Q
MIN
)
Inside an adjustable time interval t
ROL
, the minimum magnitude is calculated for phase currents
I
L1
, I
L2
, I
L3
, active power ±P and reactive power ±Q of measures taken every second. The average
values are stored at the end of the same time interval t
ROL
(Rolling demand common parameter).
Power
• Phase active power: ±P
L1
, ±P
L2
, ±P
L3
,
• Total active power: ±P
• Phase reactive power: ±Q
L1
, ±Q
L2
, ±Q
L3
,
• Total reactive power: ±Q
• Total apparent power: S
Energy
• Positive and negative active energy (one second refresh): +E
A
, -E
A
,
• Total active energy (one second refresh): E
A
,
• Positive and negative reactive energy (one second refresh): +E
Q
, -E
Q
,
• Total reactive energy (one second refresh): E
Q
Use of over-described measures is shown in the following tables.
Min-Demand.ai
Minimum value of averaged inside time intervalt
ROL
Average inside time interval
t
ROL
Reset
I
L1MIN
I
L2MIN
I
L3MIN
±P
MIN
±P
±Q
(I
n
)
(P
n
)
(Q
n
)
±Q
MIN
I
L2
I
L1
I
L3
1s
t
ROL
t
ROL
t
ROL
t
ROL
t
ROL
t
ROL
MIN
I
LxMIN
= I
Lxn
t
ROL
∙60
t
ROL
∙60
n=1
∑
1
MIN
±P
MIN
= ±P
n
t
ROL
∙60
t
ROL
∙60
n=1
∑
1
MIN
±Q
MIN
= ±Q
n
t
ROL
∙60
t
ROL
∙60
n=1
∑
1
P.ai
±P
L1
= U
L1∙
I
L1∙
cosϕ
L1
±P
L1
, ±P
L2
,±P
L2
,±P
±P
L2
= U
L 2∙
I
L 2∙
cosϕ
L2
±P
L3
= U
L 3 ∙
I
L 3 ∙
cosϕ
L3
±P = P
L1+
P
L 2+
P
L3
(P
n
)
(p.u.)
cosPhi
L1
, cos Phi
L2
,cosPhi
L3
U
L1
U
L2
U
L3
I
L1
I
L2
I
L3
Q.ai
±Q
L1
= U
L1∙
I
L1∙
sinϕ
L1
±Q
L1
, ±Q
L2
,±Q
L2
,±Q
±Q
L2
= U
L 2∙
I
L 2∙
sinϕ
L2
±Q
L3
= U
L 3 ∙
I
L 3 ∙
sinϕ
L3
±Q = Q
L1+
Q
L 2+
Q
L3
(Q
n
)
U
L1
U
L2
U
L2
I
L1
I
L2
I
L3
S.ai
±P
±Q
S
(S
n
)
S = P
2
+
Q
2
E.ai
E
A
+ = ∫(+P dt) E
A
- = ∫(-P dt) E
A
= ∫(P dt)
E
Q
+ = ∫(+Q dt) E
Q
- = ∫(-Q dt) E
Q
= ∫(Q dt)
E
A
+, E
A
-,E
A
E
Q
+, E
Q
-,E
Q
+P
-P
+Q
-Q
(Wh)
(varh)
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021