Uninterruptible Power Supplies   UPS Options
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  500va to 10kVA
Comms rack and tower UPS models for small sized applications >
 
UPS Batteries
The battery can be seen as the ‘heart’ of the system, it is often the most expensive item with absolute reliability demanded. CPS believe that just as much consideration should be given to the battery as the UPS itself. Batteries can be split into two types, ‘Open-vented’ and Sealed/Valve regulated lead acid (VRLA). Generally, the VRLA types are the battery choice for modern UPS systems as they require low routine maintenance, are environmentally friendly and are usually a more cost effective solution.

Battery quality can be determined by the ‘design life’, typically between 8-12 years for VRLA batteries. The ‘design life’ is not and never will be a guaranteed life expectancy and relies on several factors including environment, temperature, maintenance, number of discharge cycles, charging regime etc.

Battery Disposal
Constant Power Services Ltd are experienced in the replacement and disposal of batteries in accordance with the ‘Special Waste Regulations 1996’. CPS hold a waste carrier license and only use approved waste disposal agents. All our batteries are ‘non-hazardous valve regulated sealed lead acid’.

Battery Housing

Integral Our UPS range offers the option of integral battery accommodation up to and including the 30kVA UPS module. Both the Starlet M & Vega can accommodate batteries in the bottom half of the enclosure and the Planet a single battery string on the right hand side of the UPS enclosure.

Open Racks
(Drawing) Free standing structures, complete with acid resistant adjustable feet with anti-shock options for offshore or unpredictable environments and anti-seismic options for areas of geological unpredictability or sites such as nuclear power stations. All units designed to provide optimum access for installation and maintenance for the respective battery block type. Provides flexible designs to optimise plant room space and structural limitations.

Cladded Racks
(Drawing) Enclosed structures designed to provide a cost effective alternative to battery cubicles. Based on open rack type with surrounding panels and raised cover. Provides features such as required venting, matching of BS4800 and RAL colour schemes and the ability to fulfil specific requirements such as IP ratings. Provides flexible designs to optimise plant room space and structural limitations.

External Maintenance Bypass Panel
The provision of an External Manual Bypass Switch (MBS) gives the ability to fully isolate the UPS enabling maintenance, upgrades or system removal without disturbance to the load. The switchgear meets the electrical regulations for local isolation and allows all AC cabling to be completed even before the UPS is delivered to site. This enables delivery, switchover and commissioning to be performed on a clean site during normal working hours, thereby keeping costs to a minimum and reducing the risk of exposing the UPS to building debris and dust by being installed too early.

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  10 to 80kVA
Single and three phase UPS models for medium sized applications >
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  100 to 800kVA
Large UPS models
to cater for whole floors or entire buildings >
  Service Agreements
Spares, callout
preventative
maintenance &
'CPSWatch' >
 
  Rental Agreements
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Installation, Removal, Disposal
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Low Voltage Switchgear 
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Site Surveys and Pre Sales
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Diesel Generator Sets
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UPS Network Monitoring
  Bypass Isolation Transformers
Isolation transformers can be supplied for input voltage adaptation and galvanic separation of input and output providing bypass isolation to create a locally earthed neutral for use in conjunction with UPS equipment, where 4 pole switching of generator feeds may be a problem. Isolation transformers can be used with voltage stabilisers to enhance the output supply characteristics and offer a greater common mode noise reduction.

Active Filtering (Vega UPS option only)
The Vega UPS range can be equipped with an Active Filter to provide a very low input harmonic distortion (THDi) of less than 5% and an input power factor of 0.99 to dramitically reduce running costs and meet the more demanding specifications. This option is fitted integrally, therfore has no effect on dimensions and only increases weight by approx 5kgs.

Active Standby Mode for Emergency Lighting
All our UPS systems can be configured to operate in 'active standby' mode. This term means the bypass would supply the load during normal conditions and when a mains failure occurs contactors are used to transfer to inverter with the standby batteries then supporting the load (typically for 1 hour or 3 hours depending on application). This type of product is generally used in emergency lighting applications, offering efficient backup with reduced running costs, although provides no filtering or protection for more sensitive loads such as computer equipment. This type of operation is a simple configuration on the Vega, Starlet M and Sirius products, howeveron the Plant and Hyperion range this is a factory fitted option.

Top Entry Cable Chambers (factory fitted option)
Units from 100kVA can be supplied with an optional end chamber to allow easy access for top entry cabling. These matching sections incorporate top entry busbar connections for the rectifier, battery, bypass input and UPS output. Adequate space is available for cable glanding in the removable top covers and busbar connections allow termination of multiple cores.

Steel Plinths
Fabricated steel stuctures can be manufactured to support your UPS and batteries up to a raised floor level or to simply enable bottom cable entry on larger UPS installations. Gland plates and angles to support floor tiles can also be incorporated into design. Please note our plinths are designed and manufactured to suit equipment and specific site requirements.

Temperature Compensated Charger
(fitted as standard in the Dual, Starlet M, Vega & Sirius)
Typically for areas where fluctuations in the ambient temperature common and the risk of exposing sensitive battery installations to high temperatures is a possibility. CPS can minimise the effects of this problem by incorporating temperature sensing and specialised control circuitry in the UPS module to automatically adjust the battery float voltage, thereby eliminating the chance of plate distortion or gassing often associated with high temperatures. This facility is standard on our Dual, Starlet M, Vega and Sirius ranges, however is a factory fitted option for the Planet and Hyperion products.


Remote Monitoring
A range of wall mounted remote panels are available as well as network and environmental options allowing web-browser monitoring, emails, SMS and safe unattended server shutdown. More details are available on our remote panel and
network monitoring pages
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