PowerWalker VFI 30000TP 3_3 BE - Manual (Page 9)

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EN
2 Introduction
2.1 System description
PowerWalker VFI 3/3 Series products are high-efficiency and high-performance, double
conversion, pure-online and three phase input and three phase output UPS, with unit
capacity ranging between 20KVA-40KVA. Categorized by capacity, the products can be
further divided into 20KVA, 30KVA and 40KVA. This series not only provides perfect solu-
tion for power source protection and successfully solves problems such as blackout, boost,
brownouts, sags, decaying, oscillation, high voltage impulse, voltage fluctuations, surges,
harmonic distortion, disturbances, frequency fluctuation etc, but also enhances adaptability
to complicated working environments so that the application fields is well extended to com-
puter equipments, communication equipments and other controlling equipments with good
adaptability to complicated industrial environments as well. Therefore, this series products
can be applied in a diversified multi-industries field such as telecommunications, financing,
transportation, government, manufacturing and energy sectors.
PowerWalker VFI 3/3 Series products are also capable of ECO mode. ECO mode means
UPS load is powered by bypass AC supply while in case of abnormal AC supply the load
will be supplied by accumulator battery after conversion through inverter. As the energy
conversion efficiency reaches as high as 98% and transfer time less than 10ms under ECO
mode when there is normal AC supply, the energy saving effect of UPS is remarkable.
Remark: ECO mode is applicable only to single unit.
The product described in this manual is an Uninterruptible Power Supply (UPS). It is a true
online, continuous duty, double conversion, solid state, three-phase system, providing con-
ditioned and uninterruptible AC power to protect the end-user's load.