Protect your dataand critical equipment

UST Power protected hospitals increase safety, reliability and efficiency

Power �uctuations can destroy mission-critical equipment, disrupt sensitive patient procedures and destroy research projects…in a �ash.

Hospitals and research projects have relied upon battery-

powered UPS systems to protect against dangerous short-

term power anomalies - surges, sags, swells and brownouts.

UPS systems are high maintenance and notoriously subject to failure. Medical

imaging equipment is, by nature, sensitive equipment. For one, it requires a

sizeable inrush of high-impulse currents during use. At the same time, the

voltage feeding must be controlled within very narrow specifications (typically

2% of connected line voltage during peak inrush) in order to keep the high

voltage components functioning properly. Last, but not least, medical imaging

equipment must be noise-free (less than 0.5 volts neutral to ground) and

disruption-free during utility voltage sags to avoid impacting image quality

and patient diagnosis. When a single electrical “event” lasting less than a

second can destroy an MRI, an electron microscope or many years’ worth of

non-replicable data, a more reliable solution is required.

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.

Hospitals deploy expensive battery-

based Uninterruptible Power Supply

(UPS) systems to ensure continuous

sensitive patient precedures and

protect mission critical equipment.

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 hospitals. Devel-

oped before the advent of modern

electronic voltage regulators (EVR),

hospital UPS systems are designed to

do double duty - supply backup

power in the event of a blackout,

and continuously monitor 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 hospitals 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.

Placing an EVR equipped with a

static switch ahead of the battery-

based UPS system would allow a

hospital to remain safely connected

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 hospitals will lead to

a clear and significant reduction in

hospital 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.

Significant increase of safety,reliability and efficiency

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