Uninterruptible Power Supplies PowerWAVE 8000DPA RI, User Manual

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2: General Description
2-2
UPS338-01-00 PowerWAVE 8000-RI DPA User Manual Dated 5 April 2013
Figure 2.1 PowerWAVE 8000-RI DPA module configuration
2.4 Advanced Design Features
2.4.1 Input booster technology
The UPS module’s inbuilt advanced booster technology results in a perfect sinusoidal input power quality at
0.99 input power factor with a harmonic content of 3% THD(i). This leads to a more reliable total system
operation and savings in generator and transformer sizing as losses in the windings are minimised. It also
means that traditional harmonic filters are no longer required.
The high power factor presented by the UPS on the incoming mains supply minimises cabling and fusing
costs due to the resulting lack of reactive power consumption. This, together with the accompanying low
harmonic currents, provide the following benefits:
• No additional losses in wires and cables.
• No extra heating of transformers and generators.
• No over sizing of generators.
• No false circuit breaker tripping and malfunction.
• No erratic operation of computers, telecommunication, monitors, electronic test equipment etc.
• No Resonance with power factor correction capacitors.
RI-11 Frame RI-12 Frame RI-22 Frame
RI-24 Frame
1 x module
RI-10 Frame RI-20 Frame
External batt.
1 x module
40 x 7/9Ah batt.
1 x module
80 x 7/9Ah batt.
2 x module
External batt.
2 x module
80 x 7/9Ah batt.
2 x module
160 x 7/9Ah batt.
10kVA or 20kVA modules may be used in
RI-40 Frame
4 x module
External batt.
each configuration but in a multi-module
configuration both modules must be of equal rating.