Thytronic Pro-N NVA100X-D - Page 50

50
NVA100X-D - Manual - 02 - 2016
FUNCTION CHARACTERISTICS
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).
Impedance
- impedance (21 element): Z
12
, Z
23
, Z
31
,
- impedance (L1 phase): Z
L1
- resistive component impedance L1: R
L1
- reactive component impedance L1: X
L1
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
•
•
•
•
•
•
Minimum value of averaged inside time intervalt
ROL
Average inside time interval
t
ROL
Min-Demand.ai
Reset
I
L1MIN
I
L2MIN
I
L3MIN
±P
MIN
±P
±Q
(I
n
)
(P
n
)
(Q
n
)
±Q
MIN
I
L2L
I
L1L
I
L3L
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
Minimum value of averaged inside time intervalt
ROL
Average inside time interval
t
ROL
Min-Demand.ai
Reset
I
L1MIN
I
L2MIN
I
L3MIN
±P
MIN
±P
±Q
(I
n
)
(P
n
)
(Q
n
)
±Q
MIN
I
L2L
I
L1L
I
L3L
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
Z.ai
U
L1
Z
12
= U
12
/I
L1
Z
12
, Z
23
,Z
31
Z
23
= U
23
/I
L2
Z
31
= U
31
/I
L3
Z
n
= U
n
/I
n
Z
nf
= E
n
/I
n
R
L1
= Z
L1
∙cosϕ-Z
L1
X
L1
= Z
L1
∙sinϕ-Z
L1
U
L2
U
L2
I
L1L
I
L2L
I
L3L
Z
L1
= U
L1
/I
L1
(Z
n
)
(Z
nF
)
Z
L1
, R
L1
, X
L1
Z.ai
U
L1
Z
12
= U
12
/I
L1
Z
12
, Z
23
,Z
31
Z
23
= U
23
/I
L2
Z
31
= U
31
/I
L3
Z
n
= U
n
/I
n
Z
nf
= E
n
/I
n
R
L1
= Z
L1
∙cosϕ-Z
L1
X
L1
= Z
L1
∙sinϕ-Z
L1
U
L2
U
L2
I
L1L
I
L2L
I
L3L
Z
L1
= U
L1
/I
L1
(Z
n
)
(Z
nF
)
Z
L1
, R
L1
, X
L1
P. ai
±P
L1
= U
L1∙
I
L1L∙
cosϕ
L1
±P
L1
, ±P
L2
,±P
L2
,±P
±P
L2
= U
L2∙
I
L2L∙
cosϕ
L2
±P
L3
= U
L3∙
I
L3L∙
cosϕ
L3
±P = P
L1+
P
L2+
P
L3
(P
n
)
(p.u.)
cosPhi
L1
, cosPhi
L2
,cosPhi
L3
U
L1
U
L2
U
L3
I
L1L
I
L2L
I
L3L
P. ai
±P
L1
= U
L1∙
I
L1L∙
cosϕ
L1
±P
L1
, ±P
L2
,±P
L2
,±P
±P
L2
= U
L2∙
I
L2L∙
cosϕ
L2
±P
L3
= U
L3∙
I
L3L∙
cosϕ
L3
±P = P
L1+
P
L2+
P
L3
(P
n
)
(p.u.)
cosPhi
L1
, cosPhi
L2
,cosPhi
L3
U
L1
U
L2
U
L3
I
L1L
I
L2L
I
L3L
Q.ai
±Q
L1
= U
L1∙
I
L1L∙
sinϕ
L1
±Q
L1
, ±Q
L2
,±Q
L2
,±Q
±Q
L2
= U
L2∙
I
L2L∙
sinϕ
L2
±Q
L3
= U
L3∙
I
L3L∙
sinϕ
L3
±Q = Q
L1+
Q
L2+
Q
L3
(Q
n
)
U
L1
U
L2
U
L2
I
L1L
I
L2L
I
L3L
Q.ai
±Q
L1
= U
L1∙
I
L1L∙
sinϕ
L1
±Q
L1
, ±Q
L2
,±Q
L2
,±Q
±Q
L2
= U
L2∙
I
L2L∙
sinϕ
L2
±Q
L3
= U
L3∙
I
L3L∙
sinϕ
L3
±Q = Q
L1+
Q
L2+
Q
L3
(Q
n
)
U
L1
U
L2
U
L2
I
L1L
I
L2L
I
L3L
S.ai
±P
±Q
S
(S
n
)
S = P
2
+
Q
2
S.ai
±P
±Q
S
(S
n
)
S = P
2
+
Q
2