UPS Technologies

Power Protection ... Uninterruptible Power Supplies (UPS) ... Batteries ... Maintenance Contracts ... Remote Monitoring

UPS Systems are a totally independent supplier of standby power products from all of the major UPS, Generator and Fuel Cell suppliers.

We can supply UPS systems from all of the major manufacturers so whether you're looking for APC, AEC, Chloride, Eaton, Emerson Network Power, Riello, Actual Power, GE Digital Energy, Powersolve electronics or Alpha technologies .... we can help as we maintain an up to the minute database of all of the latest products from ALL of the major suppliers.

To discuss your exact needs with one of our highly experienced sales engineers please ring us on 01488 680500 or contact us by clicking on the 'contact us' button at the top of the page.

Because we're totally independent of any manufacturer, our customers receive access to the product ranges of all the major UPS manufacturers.  This allows us to identify the best solutions to any requirement and pass on the benefits of price savings.

Variety of ChoicesAn APC 3kVA rack-mounted Smart-UPS

We've been supplying UPS since 1993 and offer the UK's widest range of UPS products from 300VA to >1MVA. These include: off-line, on-line, single-phase, three-phase, line interactive, double conversion, flywheel or parallel redundant UPS; in standalone or rack-mounted configurations.

A Powerware 9315 UPS, designed for Data Centres and Server Farms, and available in the 200kVA to 500kVA power ranges.To meet the special needs of mobile power units, isolated locations, military or naval applications, we also supply ruggedised UPS that operate in harsh shock, vibration, humidity or EMI environments.

We're independent of all manufacturers. As a result we have no incentive to press for one solution over another and our customers receive totally impartial advice. 

Visit our UPS Store for small UPS and plug-in systems (off-line, line interactive, on-line double conversion & rack-mounted systems), replacement batteries or accessories.

For critical applications, 24/7 availability or sizing advice, we recommend you speak with one of our sales engineers. They can also advise on matched UPS and generators, or integrated UPS and fuel cell solutions. Our services team can discuss a range of support services (including maintenance contracts, remote monitoring and battery replacement) across the product ranges of all major manufacturers.

To discuss your UPS requirements, please call us on 01488 680 500, complete our Contact Form or leave your details for a Call Back - we’d be delighted to hear from you.

Types of UPS

The vast majority of UPS in use today store their energy in sealed valve-regulated lead-acid batteries (SVRLAs). Two UPS technologies dominate, 'on-line' and 'off-line'. Almost all units described by their manufacturers as being 'line interactive' are off-line units but with the addition of an Automatic Voltage Regulation (AVR) transformer.

The description 'on-line / off-line' simply indicates whether the inverter (that part of the UPS that converts the DC provided by the batteries to the AC that we use from a wall socket) is on-line or off-line during normal use. Almost all UPS rated at 10kVA and over are on-line.

To understand the power quality issues that UPS are designed to resolve, and for help in selecting the most appropriate UPS technology, why not view Understanding Standby Power. Generally, the following distinctions apply:

Off-line UPS

  • Lower cost
  • Standby inverter
  • Design passes mains power through
  • Momentary break*
  • Square-wave or Sine-wave output
  • Static bypass not applicable

See example

 

On-line UPS

  • More expensive to produce
  • Constant duty inverter
  • Design inherently improves power quality
  • No break
  • Sine-wave output
  • Static bypass improves reliability

See example

 

 

 

 

 

 

 

* The momentary break of an off-line unit lasts typically between 5 and 10 milliseconds and is of no consequence to most modern electronic equipment, which will not be affected.

Line Interactive UPS

These UPS offer enhanced power protection over the basic off-line designs because they provide additional line conditioning. They can also cope with a wider range of input voltages without resorting to battery.

High Capacity off-line UPS for Data Centres

With an understanding of the need for power saving within Data Centres, and having tracked the latest developments in off-line UPS technology, UPS Systems have now become the sole UK distributor of PureWave UPS products from S&C Electric in Canada.

PureWave is a high-capacity, off-line, immediate-discharge UPS that provides power protection to entire facilities served by a single source. Its modular structure supports Data Centre loads between 313kVA and 20MVA, protecting the power sensitive equipment from voltage sags, surges, transients, momentary disruptions and complete outages.

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