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.
-------------------------------------------
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' >
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