ASTRO U 100-230 Manual de instrucciones - Página 12

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The (230V or 110V) power consumption at mains (P
The efficiency ( ) must be calculated in total (P
diagrams for supply voltage 110V or 230V.
Note: At redundant supply via 2 power supply units, the summed up power (P
for each supply unit. It must be ensured, that the maximum permissible current draws of the base units
are not exceeded.
95 %
90 %
85 %
80 %
75 %
70 %
65 %
0W
95%
90%
85%
80%
75%
70%
65%
0W
The (230V or 110V) apparent power (S
The power factor ( ) must be calculated at summed up power (P
according to the following diagrams for the supply voltage 110V or 230V.
100%
95%
90%
85%
80%
75%
70%
65%
60%
55%
0W
100%
95%
90%
85%
80%
0W
The (230V or 110V) current draw (I
Examples:
3 units U114 and one U100SNT ECO: P
Pagte 12
Calculating effective and apparent power consumption at mains when using U 100 SNT ECO switching power supplies
Calculating effective and apparent power consumption at mains
when using U 100 SNT ECO switching power supplies
20W
40W
60W
20W
40W
60W
20W
40W
60W
20W
40W
60W
Net
) must be calculated as follows: P
Net
) at intermediate voltage by using the following
48
80W
100W
80W
100W
) at mains must be calculated as follows: S
Net
80W
100W
80W
100W
) at mains must be calculated as follows: I
: 88W ; P
: 94,62W ; S
48
Net230
) is splitted up to 50%
48
-efficiency 230V
120W
140W
160W
-efficiency 110V
120W
140W
160W
Net
) at the internal intermediate voltage
48
-power factor 230V
120W
140W
160W
-power factor 110V
120W
140W
160W
S
Net
=
Net
U
Net
:99,92VA ;
=93% ;
Net230
230
Operating Manual U 100-230 and U 100-48 -
P
48
=
Net
P
Net
=
: 94,7%
230
Version 04-2018A