Uninterruptible
Power Supply
A UPS is a
critical component
of your disaster
recovery plan
relative to
power-related
issues. The
units come in a
variety of sizes,
technologies, and
manufacturers.
Your protection
requirements and
budget will drive
the choice.
Selection
- Size of
unit - UPS
units are rated
by volt-amps
(VA), which
indicate the
amount of power
they can supply
to your
equipment
without damaging
the unit or
affecting the
power supplied
to your
equipment.
Units are as
small as 300 VA
and up to one
million VA.
- Type of
electric service
- Your electric
utility provides
a certain
voltage level
and type to your
home or
facility.
A residential
unit will most
likely have
120/240 volt
single phase
service, while
an industrial
plant will
likely have
277/480 volt wye
three phase
service.
There are many
other variations
in addition to
these examples.
- Technology
- The last major
selection
criteria is
technology.
A UPS is either
off-line, line
interactive, or
on-line.
We will work
with you to
determine which
technology is
applicable to
your needs and
budget.
Design
- This element
refers to how
your electrical
wiring and
equipment must
be configured so
that your
equipment is
protected by the
UPS unit.
We take into
account the
selection
criteria above,
whether a
standby
generator will
also be
installed, and
how you will
connect your
protected
equipment into
your
newly-protected
power system.
Installation
- As we've
mentioned, we
are able to
select, design,
and also install
your UPS unit.
As licensed
electrical
contractors, we
will ensure that
the installation
will meet all
applicable NEC
(National
Electrical Code)
requirements.
We work with the
equipment
manufacturer
customer
engineer to
install, start
up, and certify
your unit for
trouble-free
function.
Stand-by
Generator
A standby
generator is a
critical component
of your disaster
recovery plan where
the risk of
long-term outages
(longer than ~ 20
minutes) are
unacceptable to
business operations.
The units come in
a variety of sizes,
fuel consumption
type, and
manufacturers.
Your protection
requirement
electrical load,
existing fuel
source, and budget
will drive the
choice.
Selection
- Size of
unit -
Standby
generators are
typically rated
by kilowatts
[useful power],
with additional
rating for
kilovolt-amps (kVA)
[total power],
which indicate
the amount of
power they can
supply to your
equipment.
Units range in
capacity from ~
50 kVA to over
one million VA.
- Type of
electric service
- Your electric
utility provides
a certain
voltage level
and type to your
facility.
A commercial
building may
have 120/240
volt single
phase service or
120/208 volt wye
three phase
service, while
an industrial
plant will
likely have
277/480 volt wye
three phase
service.
- Fuel source
- An additional
selection
criteria is the
type of fuel.
While most tend
to prefer
generators that
run on diesel
fuel, some may
choose to use
natural gas.
We will work
with you to
determine which
unit, as well as
features, are
applicable to your
needs and budget.
Design
- This element
refers to how
your electrical
wiring and
equipment must
be configured so
that your
equipment is
supported by the
generator.
We take into
account the
selection
criteria above,
whether a UPS
will also be
installed, and
how you will
connect your
protected
equipment into
your
newly-protected
power system.
Installation
- As we've
mentioned, we
are able to
select, design,
and also install
your generator.
As licensed
electrical
contractors, we
will ensure that
the installation
will meet all
applicable NEC
(National
Electrical Code)
requirements.
We work with the
equipment
manufacturer's
customer
engineer to
install, start
up, and certify
your unit for
trouble-free
function.
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What
is a
UPS? |
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A
UPS is
an
electrical
&
electronic
device
that
comes
with
varied
features.
Its
primary
function
is one
of the
following:
*
Provide
the
proper
level
of
electricity
to
plugged-in
equipment,
even
if
utility
power
goes
out.
*
"Condition"
utility
power,
which
means
that
the
UPS
will
provide
the
proper
level
of
electricity,
even
if
utility
power
'sags'
or
'surges'
There
are
three
types
of UPS
technologies
that
are
primarily
used
today.
Off-line
-
Lowest
support
level.
UPS
senses
power
outage,
and
then
switches
to UPS
power.
Line
interactive
- This
UPS
also
switches
to
battery
when
an
outage
is
sensed;
however,
switch
time
is ~
4-6
milliseconds.
Isolation
is
available
through
internal
transformer.
On-line
- Best
performing
unit.
Protected
equipment
is
prevented
from
power
outages
and
fluctuations
as
power
always
feeds
through
the
UPS. |
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