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UPSI-1208DPx
Example 2
144
132
120
108
96
84
72
60
48
36
24
12
Before second 0
no load was taken.
E = 24 W · 2 sec + 0 W · 2 sec + 120 W · 8 sec + 108 W · 2 sec + 120 W · 2 sec + 96 W · 4 sec + 120 W · 11 sec + 108 W · 5 sec + 120 W · 6 sec + 48 W · 2 sec +
108 W · 8 sec + 0 W · 1 sec + 96 W 3 sec + 84 sec · 2 sec= 5844 Ws ≈ 5.84 kJ
UPS output is disconnected after 58 seconds because the output energy exceeds 5.57 kJ..
Example 3
144
132
120
108
96
84
72
60
48
36
24
12
-30
E = 72 W · 2 sec + 120 W · 6 sec + 96 W · 2 sec + 108 W · 6 sec + 84 W · 3 sec + 120 W · 5 sec + 84 W · 6 sec + 96 W · 3 sec + 120 W · 20 sec +
96 W · 5 sec = 6228 Ws ≈ 6.23 kJ
UPS output is already disconnected after 30 seconds because the output energy (of the last 58 seconds) exceeds 5.57 kJ.
Revision 2-0
2s
8s
2s
4s
2s
2s
0
10
20
6s
5s
6s
2s
3s
2s
2s
-20
-10
Before second 0 already
2.9 kJ (2892 Ws) were taken for 28 seconds.
11s
6s
5s
2s
30
40
E
Time [t]
I
[A]
OUT
20s
3s
6s
0
10
E
From second 0 3.34 kJ (3336 Ws) were taken for
I
[A]
further 30 seconds.
OUT
Time [t]
8s
3s
2s
P
OUT Nominal
1s
50
60
After second 58
output is disconnected.
58
P
OUT Nominal
5s
20
30
After second 30
output is disconnected.
30
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