Significant reduction in data center operating costs of 38%. Traditional battery-based uninterruptible power supplies, or UPS backup systems, are designed to keep computers up during blackouts. They are not designed to protect against the power “events” that can wreak havoc with your data in a matter of milliseconds. The UPS may try valiantly, but wear due to excessive switching, batteries that fall out of spec, or simple lack of sensitivity will almost inevitably cause it to fail, right when it’s needed the most. UST manufactures a full line of industrial-grade power conditioners - electronic voltage regulators (EVR) with patented microprocessor-controlled tap switching technology - that offer far more reliable power protection than batterybased UPS systems. When you place a UST power conditioner between the grid and your critical equipment, you can be assured that common electrical anomalies, of any intensity or duration, will be stopped and corrected within a single cycle.

1. Power Quality risks
have met their match
UST Power protected datacenters
increase both reliability and efficiency

2. Data centers and research institutions
depend on ultra-clean power for time-intensive
calculations and continuous processing.
Sags, surges, swells, harmonic distortions and a host of
related power anomalies are often overlooked sources of
calculation-destroying errors.
Traditional battery-based uninterruptible power supplies, or UPS backup
systems, are designed to keep computers up during blackouts. They are not
designed to protect against the power “events” that can wreak havoc with
your data in a matter of milliseconds.
The UPS may try valiantly, but wear due to excessive switching, batteries that
fall out of spec, or simple lack of sensitivity will almost inevitably cause it to
fail, right when it’s needed the most.
UST manufactures a full line of industrial-grade power conditioners - electronic
voltage regulators (EVR) with patented microprocessor-controlled tap switch-ing
technology - that offer far more reliable power protection than battery-based
UPS systems.
When you place a UST power conditioner between the grid and your critical
equipment, you can be assured that common electrical anomalies, of any
intensity or duration, will be stopped and corrected within a single cycle.
Data centers deploy large and
expensive battery-based Uninter-ruptible
Power Supply (UPS) systems
to ensure continuous service to a
demanding customer base.
To meet expectations for 100% up-time,
facility managers trade electri-cal
efficiency for the assurance of
knowing that their backup systems
will start the millisecond they are
needed.
However, there is a significant weak-ness
in the legacy design of power-backup
systems at data centers.
Developed before the advent of
modern electronic voltage regula-tors
(EVR), data center UPS systems
are designed to do double duty -
supply backup power in the event of
a blackout, and continuously moni-tor
and condition power.
The typical UPS system is called upon
40 to 60 times a year, but only a
handful of those events are in
response to a total power loss or
deep voltage sag. Up to 90% of the
time, the UPS system is responding
to events that could be more reliably
and economically managed by vol-tage
regulation technologies. This
excessive switching stresses UPS
systems, and exposes data centers to
high incidence of UPS failure.
Within the last decade, UST power
conditioners equipped with elec-tronic
on-load tap changers have
proven capable of reliably and
efficiently compensating for varia-tions
in incoming voltage.
UST power conditioners minimize
and balance variations in voltage to
protect equipment, ensuring
consistent voltage.
UST power conditioners “sense”
even the smallest voltage fluctuation
within a single cycle and adjust elec-trical
output by transforming the
voltage coming in from the grid
before passing it through to the
loads they serve.
When an EVR is placed between the
source and the load, up to 90% of
the electrical events that cause tra-ditional
backup systems to engage
can be safely bridged.
Significant reduction in data
center operating costs of 38%
Placing an EVR equipped with a
static switch ahead of the battery-based
UPS system would allow a
data center to remain safely con-nected
to the load while reducing
stress on the UPS.
The EVR is a fully electronic device,
with no moving parts, no significant
maintenance requirements, and a
solid, field-tested record of relia-bility.
It is literally “enabled” upon
installation.
An EVR compensates for voltage
sags, swells and brownouts. It can-not
compensate during periods of
total power loss or blackout.
The UST power conditioners com-bine
the best qualities of typical
mechanical and electronic voltage
regulators while eliminating their
weaknesses.
Mechanical voltage regulators are
valued for their high overload
capacity and good voltage regula-tion,
but these qualities are offset by
their slow correction speed and the
need for regular maintenance of
moving parts. Similarly, electronic
voltage regulators are known for
their fast correction speed, but
suffer from poor overload capacity.
The UST power conditioners provide
high overload capacity for loads
with large inrush-current require-ments.
At the same time, it provides
consistent voltage regulation and
fast correction without regular
maintenance or moving parts.
The inclusion of an EVR in the
powerbackup and power-conditio-ning
system at data centers will lead
to a clear and significant reduction
in data center operating costs of
38% when measured over 10 years
(the typical lifespan of a UPS
backup system).
Payback is guaranteed in less than 3
years. However, factoring in the
likelihood of at least one prevented
UPS outage during the 10-year
lifespan of a system, total savings
will be greater, and payback could
be realized even sooner.

3. We Save Power performs energy
audits including all aspects of power
quality and EMC.
Based on measurements, we can
translate our knowledge and under-standing
of electrical installations,
electrical equipment and electronics,
motor- and drive-technology into a
clear reporting about the ‘health’ of
your power supply, including advice
for any necessary improvement.
Neither power control and power
quality protection, nor the lack of it,
are without cost. An important part
of assessing power quality related
costs is determining what specifically
is being affected and where, or in
what aspects of business operations,
these costs show up. The benefits of
good power control and power
quality vary from energy savings up
to damage protection. Prevention is
relatively cheap ranging from simple
good practice to the installation of
support equipment.
The UST Electronic Voltage Regulators feature:
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Fast voltage regulation corrects under/over voltage, sags, and swells
High fault-clearing capacity permits reliable operation of other
protective devices
Built-in surge suppression for surges and spikes
Line isolation minimizes transients
Transformer shielding reduces line noise to deliver clean power
Independent phase regulation to correct voltage imbalance
Input circuit breaker protects against damaging over-current and
short circuits
Automatic failsafe electronic bypass keeps the load powered
We Save Power
790 Route d’Annecy
74600 Quintal
France
T +33 457 413 141
E info@wesavepower.com
www.wesavepower.com