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Now you can get higher, more
efficient UPS reliability by taking
advantage of Liebert’s world-class
flywheel energy storage technology.
Liebert’s flywheel technology
provides superior performance
without the high cost of ownership
and environmental impact associated
with batteries.
Flywheel Technology
Offers Many Advantages
The compact, lightweight, and
reliable Liebert FS flywheel system is
safe and environmentally friendly. It
offers a low installation cost, small
footprint, low maintenance and long
operating life. It provides quick
r
ec
h
ar
ge and operates under a wide
range of temperatures. The patented
safety system provides a safe
shutdown under all circumstances.
The flywheel system’s unique
o
perating features, such as rapid
recharging and broad operating
temperature range, allow the Liebert
FS to be installed in applications
w
he
r
e batteries have previously
been ruled out.
L
iebert FS Flywheel
En
e
rgy S
torage Systems
Are Ideally Suited For:
■
Data Centers
■
C
oloca
ti
on f
a
cilities
■
Telecommmunications
■
Colocation Facilities
■
In
dustrial process equipment
■
Commercial facilities
■
M
ed
ical facilities
Battery-Free
Solution For Use
With UPS Systems
28
Liebert FS Flywheel System
The Liebert FS flywheel DC energy storage system is
designed to be a more efficient and reliable
alternative to standard battery systems used with
uninterruptible power supply (UPS) systems. The
advanced, high-RPM, composite flywheel
technology used in the Liebert FS provides 190 kW
of instant ride-through DC power and voltage
stabilization for approximately 10 seconds—
more than enough for the vast majority of
electrical disturbances.
The Liebert FS can be used as the sole back-up DC
energy device or in conjunction with conventional
battery strings or generator sets. When used along
with batteries, the flywheel system will eliminate
their use for short power fluctuations, helping to
extend life and save capacity for longer outages. It
can also be used alone to provide ride-through
po
wer until back-up generators come on line.
The Liebert FS is engineered to support larger
Li
e
be
rt UPS systems, including the Liebert Npower
and Liebert Series 610 models. A single flywheel
can be sized to support UPS systems up to 225 kVA.
Multiple flywheel systems can operate in parallel to
support larger systems.
■
Rides load through to generator
■
Magnitude increases in
reliability/availability
■
Eliminates battery
maintenance/replacement
■
Significantly reduces life cycle costs
■
Increases productive floor space
■
Elimin
a
t
e
s floor
-lo
ading issues
■
Eliminates health & safety issues
■
Elimin
a
t
es environmental issues
■
Is
olates batteries from cycling
■
Rides load through to generator
■
Magnitude increases in
reliability/availability
■
Extends battery life
■
Minimizes battery
m
ain
t
e
nance/replacement
■
Significantly reduces costs over
du
al s
trings
When the primary power source
goes down, it’s vital that the UPS has
a reliable DC power source to deliver
energy to the critical loads. The
Liebert FS stores energy kinetically
via flywheel inertia rather than
relying on chemical reactions of toxic
lead and sulfuric acid.
Reliable ride-through energy storage, with or
without batteries.