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NA11 - Manual - 02 - 2009
FUNCTION CHARACTERISTICS
Peak (I
L1MAX
, I
L2MAX
, I
L3MAX
)
Inside an adjustable time interval t
ROL
, the maximum magnitude is calculated for phase currents I
L1
,
I
L2
, I
L
of measures taken every second. The average values are stored at the end of the same time
interval t
ROL
(Rolling demand common parameter).
Minimum (I
L1MIN
, I
L2MIN
, I
L3MIN
)
Inside an adjustable time interval t
ROL
, the minimum magnitude is calculated for phase currents I
L1
,
I
L2
, I
L3
of measures taken every second. The average values are stored at the end of the same time
interval t
ROL
(Rolling demand common parameter).
Use of over-described measures is shown in the following tables.
•
•
Max-Demand.ai
Massimo valore delle medie nell’inervallo
t
ROL
Media aritmetica nell’inervallo
t
ROL
I
L1MAX
I
L2MAX
I
L3MAX
(I
n
)
I
L2
I
L1
I
L3
1s
t
ROL
t
ROL
t
ROL
t
ROL
t
ROL
t
ROL
MAX
I
LxMAX
= I
Lxn
t
ROL
∙60
t
ROL
∙60
n=1
¥
1
Max-Demand.ai
Massimo valore delle medie nell’inervallo
t
ROL
Media aritmetica nell’inervallo
t
ROL
I
L1MAX
I
L2MAX
I
L3MAX
(I
n
)
I
L2
I
L1
I
L3
1s
t
ROL
t
ROL
t
ROL
t
ROL
t
ROL
t
ROL
MAX
I
LxMAX
= I
Lxn
t
ROL
∙60
t
ROL
∙60
n=1
¥
1
Min-Demand.ai
Reset
I
L1MIN
I
L2MIN
I
L3MIN
(I
n
)
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
Minimum value of averaged inside time intervalt
ROL
Average inside time interval
t
ROL
Min-Demand.ai
Reset
I
L1MIN
I
L2MIN
I
L3MIN
(I
n
)
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
Minimum value of averaged inside time intervalt
ROL
Average inside time interval
t
ROL
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