ABB Conceptpower DPA 500 - Battery Characteristics; Graph: AC; AC Efficiency with Linear Load @ Cos(Phi) 1

04-3275_OPM_ABB_CONCEPTPOWER_DPA_500kW_EN_REV-A.docx Page 72/78 ABB
Modifications reserved
10.5 BATTERY CHARACTERISTICS
Battery characteristics Values Unit
Technology: VRLA, vented lead-acid, NiCd
Number of 12 V blocks (even and odd)
42 - 48
1)
Number of 1.2 V NiCd cells (even and odd)
420 - 480
1)
Battery charger: decentralized, each module has its own charger
Max. current charger capability
60
A
Max. power charger capability
30
kW
Floating voltage (VRLA / NiCd)
2.25 / 1.40
VDC
End of discharge voltage (VRLA / NiCd)
1.65 / 1.05
r.m.s. ripple current (percentage of the battery capacity )
2
%
Temperature compensation: optional
Battery test: automatic and periodic battery test (selectable)
1)
IMPORTANT NOTES:
- for small autonomies (< 20 minutes) the UPS supports 40 - 50 12V blocks
- the range 42 - 48 supports any autonomy.
- at output voltage 415/240VAC the minimum 12V block is 42.
10.5.1 Graph: AC / AC efficiency with linear load @ cos(phi) 1 *
* tolerance of ± 0.2% applies on all figures.
95.8%
96.1%
96.0%
95.6%
90%
92%
94%
96%
98%
100%
0 10 20 30 40 50 60 70 80 90 100
AC/AC Efficiency with linear, resisitve load
η
Load [%]