|
|
Uninterruptible Power Supplies (UPS) Systems
|
|
An
uninterruptible power supply (UPS), sometimes called
an uninterruptible power source, is a device which
maintains a continuous supply of electric power
to connected equipment by supplying power from a
separate source when utility power is not available.
A UPS is inserted between
the source of power (typically commercial utility
power) and the load it is protecting. When a power
failure or abnormality occurs, the UPS will effectively
switch from utility power to its own power source
almost instantaneously.
While not limited to any
particular type of equipment, a UPS is typically
used to protect computers, telecommunication equipment
or other electrical equipment where an unexpected
power disruption could cause injuries, fatalities,
serious business disruption or data loss. UPS units
come in sizes ranging from units which will backup
a single computer to units which will power entire
data centers or buildings. Larger UPS units typically
work in conjunction with generators.
Historically, UPS units
were very expensive and were most likely to be used
on expensive computer systems and in areas where
the power supply is interrupted frequently. However,
UPS units are now more affordable, and have become
an essential piece of equipment for data centers
and business computers, but are also used for personal
computers, entertainment systems and more.
There are nine common power
problems that UPS units are used to correct. They
are as follows:
1. Power failure -
Total loss of utility power
2. Power sag - Short term under-voltage
3. Power surge (spike) - Quick burst of over-voltage
4. Under-voltage (brownout) - Low line voltages
for an extended period of time
5. Over-voltage - Increased voltages for an extended
period of time
6. Line noise - distortions superimposed on the
power waveform.
7. Frequency - variation of the power waveform.
8. Switching transient – under-voltage or
over-voltage for up to a few nanoseconds.
9. Harmonic Distortion - multiples of power frequency
superimposed on the power waveform.
General categories of modern UPS systems are on-line,
off-line and standby. The traditional definition
of an on-line UPS was one that continuously powered
the load from a DC bus that was supplied by two
sources: batteries, and DC rectified from the incoming
AC. In a standby UPS, the load is powered by the
source until the power fails and then it quickly
switches on an AC-to-DC converter and battery source.
Since 2004, the majority of units sold below 1 kVA
are standby UPS.
Besides choosing a UPS design,
there are 2 key ratings to be aware of when choosing
a UPS unit. The first is the VA and wattage ratings.
Both the VA (volt amp) and wattage ratings represent
the maximum amount of load that can be plugged into
a UPS in different ways. The connected load typically
should not exceed 80% of either UPS rating. Special
considerations must be made when connecting certain
equipment such as printers or any type of motorized
load. The second factor in deciding which unit to
purchase is the amount of runtime the unit will
be able to provide when the power fails. This number
will vary with the load amount that is plugged into
the UPS. For example, a unit may run a single computer
for 30 minutes, but with 2 computers plugged in,
it might only last 15 minutes. Larger units typically
can provide more runtime for the same load than
smaller units, however that is not always the case.
Some UPS units are designed to provide extended
runtime or have the ability to have external battery
packs connected.
In order to provide the
desired protection, UPS units must be properly maintained.
Sealed lead/acid batteries have a useful lifetime
of 3-5 years. In determining when to replace batteries,
it is important to remember that the batteries can
be completely bad after 3-5 years and lose their
ability to hold a charge gradually over that time.
If a UPS started with 1 hour of runtime for the
connected load, after 1 year, it may only provide
45 minutes and after 2 years, it may only provide
20 minutes. Some UPS units have user replaceable
batteries, but some require a qualified technician
or electrician to replace the batteries.
|
|
|
Mitsubishi
Electric is the world’s
leading manufacturer of power quality solutions
and is at the leading edge of technology and innovation
in designing and manufacturing UPS systems. In
today’s digital economy where downtime is
measured in dollars, Mitsubishi Electric delivers
a wide range of the highest quality and most reliable
Uninterruptible Power Supply (UPS) and Power Management
Systems in the industry. Mitsubishi Electric’s
UPS systems insulate and protect critical applications
from ALL power related problems. Wherever there
exists recurring power problems that produce harm
to critical computer systems or equipment that
run or guide our airlines, trains, stock exchanges,
banks, laboratories, diagnostic centers, or medical
equipment, Mitsubishi Electric is present providing
the utmost protection. With over 80 years of innovation,
in-depth knowledge of your applications, continuous
technological advances, reliability and world-class
services, Mitsubishi Electric is the clear choice
to protect the world’s most critical applications.
Technical
Highlights and Benefits
Mitsubishi Electric’s UPS systems use the
latest in power semiconductor device technologies
that are based on our constant research and development
efforts. Mitsubishi Electric manufactures all
the components for our UPS systems and knows best
how to integrate them for the most effective UPS
systems, unlike other manufacturers who integrate
parts from different sources. In fact, Mitsubishi
Electric’s IGBTs and components are sought
after by other UPS manufacturers. Our UPS products
incorporate the Mitsubishi Electric 4th Generation
IGBT and other high quality
components that result in the following superior
features:
Excellent
Performance Characteristics
– Large
power capabilities
– High Ampacity Transistors
– High Speed Switching
– Low Control Power Consumption
– Low Input Current Harmonics
(THD)
– 4% maximum (100% load)
– 5% maximum (75% load)
– 7% maximum (50% load)
Generator
Powered (UPS) Applications
1:1 (UPS kVA/Generator kW)
Low Heat
Loss / High Efficiency
Use of Intelligent Power Module (IPM) transistors
enables efficient high-speed switching, thus reducing
heat dissipation in the UPS. Low harmonic distortion
signatures and high Input Power Factors assure
generator compatibility and stability. Extended
Battery Life Unnecessary battery discharge for
up to 100% rated step loads is no longer required
with the installation of IPM transistors in both
the converter and the inverter. Many competitors
UPS systems require assistance from batteries
when the converter is unable to supply the required
current. This cycling of batteries causes shorter
life. All Mitsubishi Electric UPS systems are
capable of maintaining critical loads without
any battery support or discharge. Hot Swappable
Batteries Replacement of batteries for our single
phase products is made safe and easy with the
hot-swap feature. There is no need to turn the
UPS system off. Battery change-out is performed
while the system is running and connected to AC
power.
Mitsubishi
UPS Technology Summary of Typical UPS Characteristics
and Features:
– Advanced
PWM technology with advanced IGBT switching application
– Energy Saving and Clean Power
Supply Environment
– Superior Input and Output
Performance
– Unique Optimum Control and
High Reliability Technology
– DSP (Digital Signal Processor)
applied Direct Digital Control (DDC)
– Special Development ASIC (Application
Specific Integrated Chip) Single Phase Products
Mitsubishi
UPS - 2033A
Design: Three-Phase On-Line
Double Conversion Topology
Power Rating: 30, 50, 75kVA
Voltage: Input: 208V
or 480V Output: 120V, 208V, or 480V
Design Features:
* IGBT(Converter/Inverter)
* Low Audible Noise
* Internal Maintenance Bypass
Switch
* Conformal Coated Printed Circuit
Boards
* Advanced Touch Screen Monitoring
* 1:1 Generator Compatible
* Dual Input
* Two (2) Year Warranty
* Low Input Harmonics
Mitsubishi
UPS - 2033D
Design: Three-Phase On-Line
Double Conversion Topology
Power Rating: 30,
50, 80kVA
Voltage: Input: 480V
Output: 208V, or 480V
Available for Parallel Redundant Applications
Design Features:
* IGBT(Converter/Inverter)
* 1:1 Generator Compatible
* Dual Input
* Waveform Capture Capability
* Two (2) Year Warranty
* Low Input Harmonics
* Internal Maintenance Bypass
Switch
* Conformal Coated Printed Circuit
Boards
* Advanced Touch Screen Monitoring
Mitsubishi UPS
- 2033C
Design: Three-Phase On-Line
Double Conversion Topology
Power Rating: 10,
15, 20, 30, 40, 50kVA
Voltage: Input: 208V
or 480V Output: 120V, 208V, or 480V
Design Features:
* IGBT(Converter/Inverter)
* 1:1 Generator Compatible
* Low Input Harmonics
* Low Audible Noise
* Two (2) Year Warranty
* Compact Design
* Internal Maintenance Bypass
Switch
* Conformal Coated Printed Circuit
Boards
Mitsubishi
UPS - 9800D
Design: Three-Phase On-Line
Double Conversion Topology
Power Rating: 100,
150, 225, 300, 375, 500, 750kVA
Voltage: Input: 480V,
600V Output: 208V, 480V, 600V
Available for Parallel Redundant Applications
Available for Parallel Capacity to 6000kVA
Design Features:
* IGBT Design
* 1:1 Generator Compatible
* Two (2) Year Warranty
* Internal Static Bypass Switch
* Conformal Coated Printed Circuit
Boards
* Advanced Touch Screen Monitoring
* Low Input Harmonics
* Low Audible Noise
|
|
|
|
TOSHIBA-1600
EP
3.6-18kVA
1600 Series is
single phase UPS, available in 3.6kVA, 8kVA,
10.0kVA, 12kVA, 14kVA & 18kVA. This series
offers in tower design solution. As a double
conversion on-line UPS, it is able to supply
uninterrupted, clean single-phase power to your
critical systems while keeping batteries charged
continuously, even if the utility power fails.
This 1600EP Series will provide you with an
additional 20% Extra Power! From a name that
is synonymous with quality. This system combines
true on-line technology, state of the art electronics
and the Toshiba name to offer a high reliability
UPS. Other features of the UPS include:
Design Features:
• Hot Swappable Batteries
• Hot Swappable Cooling
Fans
• Internal Isolation
Transformer
• Digital LCD Display
• Wide Input Voltage
Window
• Wide Input Frequency
Window
• Input Power Factor
greater than 0.95
• Power Factor Correction
• Output Power Factor
0.85
• Optional Network
Interface Card
• Optional Environmental
Monitoring Device
4200
FA CT & 4200 FA XT
15-50kVA
The 4200FA Series is
a State of the Art designed UPS to meet all
customers needs. The newly designed 4200FA
Series offers a number of options to satisfy
your needs. The 4200FA Series has the largest
input voltage/frequency window in the industry.
This allows for the unit to be user friendly
to the batteries, thus extending the life
of battery. The front end IGBT design allows
it to work optimally at 0-100% load with low
less than 3% THD on the input. This allows
for one to one sizing of the Generator. The
4200FA Series also offers a Standard Three
Year Warranty . The CT models are designed
for internal batteries and internal maintenance
bypass design without the need for additional
cabinets. The XT model allows for internal
isolation transformers built in the cabinet.
The XT is built for extreme conditions and
a large variety of three phase voltage applications.
4200FA CT Characteristics:
Design Features:
• True On-Line Double
Conversion
• Input Power Factor
> 0.98
• Input Current <
3%
• Wide Input Voltage
Window +10% to -30%
• Wide Input Frequency
Window 45-65 Hz
• Electronic Power
Factor Correction for 100%
Generator Compatibility
• Complete Front Access
for Installation and Service
• 100% Unbalanced
Load Capability
• SNMP/Web-Based Monitoring
• Battery Friendly
Charger Design
• Three Year Standard
Warranty
• Internal Batteries
Option
• Internal Maintenance
Bypass Switch
• Small Footprint
• Internal Isolation
Transformer Option
• Multiple Three Phase
Voltage Combinations
|
|
|
|
Powerware UPS’
have been protecting mission-critical operations
since the days when a mainframe needed its
own room. That's over 40 years of experience
in the power quality and backup power protection
industry. The result is an expansive product
line with advanced solutions for any application,
from desktops to data centers.
Powerware solutions include UPSs ranging from
300 VA to more than 4,000 kVA. Their award-winning
software and connectivity devices incorporate
all the features you need to proactively manage
your systems, from basic monitoring and shutdown
to predictive analysis and power management.
Powerware Integration Services offers complete
solutions tailored for the specific requirements
of federal, telecom, and commercial markets.
POWERWARE - 9155
The new Powerware® 9155 uninterruptible
power system (UPS) delivers a genuine triple-play:
the latest technology advances, a stylish
and user-friendly design, and a budget-pleasing
price. In fact, the Powerware 9155 delivers
more features at a price lower than its predecessors.
This double-conversion online
UPS resolves all nine of the most common utility
power quality problems and supplies clean,
continuous power to all connected equipment.
The innovative design of this UPS delivers
the industry’s best performance combination:
•
High efficiency (90 percent or better across
all load ranges)
• Low input current
distortion—less than five percent total
harmonic distortion (THD)—due
to an active IGBT rectifier that delivers
0.99 power factor correction
• High power factor output
(0.9 PF)
The cumulative result of these advancements
is maximum economy, adaptability, and power
performance.
A scalable architecture
makes this an uncommonly versatile UPS. Choose
from four models to match today’s requirements,
and upgrade kVA rating in increments as needed.
Or, use our signature Powerware Hot Sync®
paralleling technology to simply upgrade from
a single-module system to a multi-module system
for added capacity or redundancy. Multiple
equivalent UPSs can be paralleled to operate
as a unified UPS. Our patented load-sharing
control intelligently distributes the workload
among modules without requiring direct communications
links among them.
POWERWARE 9355 UPS
With
advances in miniaturization and processing
power, a single rack of equipment will
soon demand 15 to 30 kVA of power—and
more equipment than ever will be served
by dual-cord power supplies. It’s
a challenge to provide power protection
for expanding loads in shrinking spaces.
That’s the
reality for which Eaton designed the Powerware
9355 UPS. This advanced UPS delivers 10
kVA or 30 kVA of power protection in a
sleek tower configuration which includes
internal batteries. With such a small
footprint, you have more options for locating
the UPS and more data center space available
for future expansion. |
 |
| PW9355 10-15 kVA |
The
innovative design of this UPS delivers
the industry’s best performance
combination of high efficiency, low input
current distortion and high power factor.
The cumulative result of these advancements
is maximum economy, adaptability, and
power performance.
Best
of all, this advanced technology comes
in an easy-to-use product. Installation
is easy. You can order the 10-15 kVA UPS
with your choice of output receptacles,
choosing from 18 types. Later, when you
need to change or move data center equipment,
simply unplug from the old receptacle,
plug into a new one, and go. There’s
no need for an electrician to run new
conduit and wiring.
The 20-30 kVA models
offer features like dual-feed inputs,
a 480-volt output transformer, and input
and output breakers internal to the UPS.
|
 |
| PW9355
20-3- kVA |
Features and Benefits:
* Protects connected equipment
from all nine of the most common power problems
* Provides more real wattage
in less space with a .9 power factor—protecting
more equipment
and leaving more room for expansion
* Delivers extra capacity
or redundancy through patented Powerware Hot
Syncâ
technology for paralleling of multiple
modules
* Increases battery life
through proven ABMâ technology, a microprocessor- controlled
advanced battery management technique
* Ensures data and system
integrity with complete power management software for
remote monitoring, management, and shutdown
* Eliminates utility distortion
and increases reliability by reducing total
input harmonic
distortion (THD) to less than five percent
Product
Snapshot |
| Power Rating: |
Two product configurations:
10 - 15 kVA and 20-30 kVA
(at 0.9 power factor) |
| Voltage: |
208V/120V/208V
220V/127V
480:120V/208V or 600:120/208 with input
isolation transformer (at 60 Hz only),
480V output available on 20-30 kVA
|
| Frequency: |
50/60 Hz, auto-sensing |
| Configuration: |
Small-footprint tower, black with internal
batteries
Extended Battery Modules (EBMs) are available
for the 10-20 kVA units and Extended Battery
Cabinets (EBCs) are available for the
20-30 kVA units |
| Topology: |
Three-phase, double-conversion online
UPS |
| Battery Backup: |
Internal battery times range from 5-20
minutes at full load. More than two hours
of backup can be achieved with matching
External Battery Enclosures (EBEs) |
POWERWARE 9390
UPS
Built upon 40 years
of power management experience, performance
and continuous innovation, the Powerware 9390
provides the best combination of power performance,
battery management, scalable architecture,
flexibility, power density, and warranty and
service.
The Powerware 9390 is designed
to meet the current and future power protection
requirements of data centers, manufacturing
operations, medical facilities and other large-system
applications. That’s why Eaton has conducted
extensive customer research to help create
a UPS that would set the pace for three-phase
power protection. The result is a UPS that
combines technical innovation with a rich
feature set to provide a best-in-class power
protection solution
Features and Benefits:
* Provides unmatched power
performance for efficiency, input current
harmonic
distortion (THD) and power factor
* Scalable for capacity
and redundancy to meet present and future
power needs
|
Staco Energy
|
|
UniStar Sx®
Series
700 VA - 3,000 VA, Online Double Conversion
UPS
"Next
Generation" UPS/Power Conditioning
The Staco Energy Products
Company's UniStar Sx "Next
Generation" UPS/Power Conditioner does
exactly what it has to do
to guarantee clean power...
It generates its own!
The UniStar
Sx, a solid-state UPS, has been designed
to provide continuously regulated output voltage.
For maximum flexibility, the UniStar Sx will
operate over a wide input voltage range at
either 50 or 60 Hz. Standard output voltages
are user selectable.
The UniStar Sx provides
output voltage and frequency regulation, harmonic
filtration, electrical noise attenuation and
protection against voltage fluctuations, frequency
fluctuations, brownouts and blackouts. Optional
extended runtime battery cabinets can provide
protection against extended power outages.
The UniStar Sx "Next
Generation" UPS / Power Conditioning
system is a unique product designed to overcome
the shortcomings of other UPS technologies.
This state-of-the-art UPS consists of a full-time
rectifier and an inverter that generates clean
power specifically designed for today’s
power loads. The feature-rich UniStar Sx is
available in either tower or rack-mount models
for maximum installation flexibility. It is
a cost effective UPS / Power Conditioning
solution for today’s power quality needs.
*
Industry Leading Three Year Warranty
* Hot-Swappable Batteries
* True On-Line Double Conversion
UPS with Outstanding Power Conditioning Features
* Operates on 50 or 60 Hz,
and Can Act as a Frequency Converter
* Standard Rack Mount or
Tower Configuration
* Automatic / Continuous
Diagnostics
* Remote Monitoring Capabilities
* Sentry II Web-based Power
Management Software Included
* Small & Lightweight
* Low Cost of Ownership
* Optional External Battery
Packs for Extended Runtime
UniStar IIILA ®
1,000 VA - 3,000 VA,
Online, Double-Conversion UPS
Features at a Glance:
* Tower or Rack Mount to
Meet Your Installation Needs
* Easy Plug and Play Design
(1 & 2 kVA Units)
* User Friendly Control
Panel
* Precision Power Conditioning
* Smart Battery Management
* Remote Communications
and Monitoring
* Optional External Battery
Packs for Extended Runtime
 UniStar
II Single Phase Online, Double-Conversion
UPS
Ensure the accessibility of your data with
uninterruptible power supplies (UPS) from
Staco Energy Products Company. Available in
6 and 10 kVA, the UniStar® II line of
single phase, online uninterruptible power
supplies delivers true, high-quality, online
power, with low distortion, plus sine-wave
output to power any combination of linear
and non-linear loads. In the event of AC input
supply failure, an internal audible alarm
sounds and the unit continues without interruption
to provide safe, clean continuous power from
its sealed batteries.
Upon return of AC input supply, the UPS reverts
to its double conversion operating mode and
automatically recharges the batteries in preparation
for the next power disturbance.
TreStar Sx®
Series 
12 - 80 kVA, Online Double Conversion UPS
The TreStar
SX® is a true online, double conversion
UPS built tough to withstand industrial environments,
and sensitive enough to handle the most delicate
electronics. The TreStar is the smart choice
for applications where continuous power is
a MUST!
The TreStar SX totally isolates
the connected load from the AC primary supply,
protecting it from voltage sags, surges, spikes,
transients, RFI and frequency variations.
If the power goes out, an alarm will sound
and the TreStar will continue to provide safe,
clean power without interruption. When the
power returns to normal, the TreStar automatically
recharges the batteries in preparation for
the next power anomaly.
Reliability begins with
design. The TreStar is designed to meet the
power protection needs of today's sensitive
electronic and computer loads with:
*
Advanced circuitry to prevent unexpected failure
* A front display panel
that gives complete access to 15 critical
measurements and
33 alarms
* Advanced battery protection
and diagnostics that provide the highest level
of protection
against overheating, deep discharge and low
current.
* Remote monitoring with
REDDI PC and REDDI SNMP Software and adapters.
Why Buy The TreStar SX Series?
*
True Online Double Conversion UPS. AC to AC
efficiency with fully charged batteries.
* Extended Battery Life
and Superior Diagnostics. The TreStar SX Series
offers a
wider input voltage range, so the UPS goes
to battery less often for longer battery
life. Automatic diagnostics check the batteries
weekly and recharge if necessary.
* Automatic Systems Bypass
with Manual Isolation Switch.
* Internal Maintenance Bypass.
* Field Upgradeable.
* Regulated output voltage
+/- 1% with balanced load, +/- 3% with 100%
unbalanced
load.
* Options for remote monitoring,
external battery cabinets for extended runtimes,
10% Input Harmonic Filter, and extended service.
|
|
|
|
