Toshiba T90S3S08KS6XSN Manual page 151

TOSHIBA G9000 UPS White Paper
G9000 UPS includes
advances in all the
three levels in power
electronics: circuits,
components and
systems.
G9000 UPS features
industry -leading
double conversion
efficiency (>96%).
4
Digital signal processor
© 2008 TOSHIBA INTERNATIONAL CORPORATION – INDUSTRIAL DIVISION
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G9000 UPS Benefits
As the world's first three-level uninterruptible power supply, the G9000
UPS is the wise response from Toshiba to the growing demand for high
reliability and efficient power solution for mission-critical applications. Its
innovative three-level circuit concept and exclusive power module delivers
superior performance and reliability, updates industrial electronics
technology and reduces cost of ownership with its green-oriented features.
The many benefits of the G9000 UPS include:
n
Industry-leading and up-to-date power electronics technology
The G9000 UPS is the most advanced uninterruptible power supply.
Advances comprise all the three levels in power electronics: circuits,
components, and systems. The innovative three-level circuit concept
is a milestone in the UPS industry, which has stagnated to the
conventional two-level topology. The exclusive power module has
become a key component to make the multilevel concept even more
attractive. In terms of advances in systems, DSP
control ensures superior performance to meet modern industry
demands and standards. In addition, The G9000 UPS introduces a
cross current sensor less control for parallelism of multiple modules.
This new technology eases the system expansion toward a redundant
high-reliability configuration.
n
Green-oriented design
With an unmatched efficiency of 96.5% at full load, The G9000 UPS
is the greenest double-conversion UPS on market while competitors
barely reaches 95%. This high efficiency leads to significant energy
savings as well as reduction of the carbon footprint. To illustrate the
amount of energy savings, consider two 225-kVA systems running at
40% load. The impressive double conversion efficiency curve (Figure
13) of the G9000 UPS shows >96% efficiency even at this load
percentage. In this case, an increase of 1% in efficiency represents
4
-based fully digital
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