ELECTRICAL NEWS
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| Press release |
| Socomec Sicon Delphys DS UPS system, Hammersmith Hospital |
| Date : 05 September 2005 |
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HAMMERSMITH HOSPITAL NHS TRUST
Socomec Sicon UPS systems have been chosen to provide full power protection for
the Hammersmith Hospital Trust.
Eta Projects Ltd, the Engineering Design and Project Management specialists,
were commissioned by the
Hammersmith Trust to undertake a risk assessment of each of its sites and
implement essential upgrade works to meet the expanding and critical demand of
its IT infrastructure. They commissioned the advanced Delphys DS system, which
has the benefits of a small footprint, extremely low harmonic re-injection and
IGBT technology.
The Hammersmith Hospital NHS Trust’s IT backbone system comprises of a large IT
room with several secondary communications rooms, strategically located around
three other sites located in West London.
UPS systems are a minefield to the uninitiated and due to the hospital’s
critical function, it is imperative that they are selected correctly and
designed into the electrical infrastructure to provide maximum capacity and
resilience at all times.
To maintain the integrity of the installation, Eta Projects specified Socomec
Sicon, which won the tender under a sealed bid process to replace the original
scheme, which, due to load increase, was no longer able to meet N+1 capacity.
Cost studies were carried out and it was found to be more cost effective to
completely replace, rather than upgrade the existing system. This enabled
advanced technology to be employed. The new UPS modules are configured in
parallel redundancy, each sharing the load equally but each rated to carry the
full load if necessary.
The Socomec Sicon UPS system specified, comprise 2 x 120kVA Delphys DS UPS
systems, which are 12-pulse, double conversion, true on-line technology and are
rated for a “Crest Factor” of 3-1 minimum. The system is complete with two
dedicated power distribution units (PDU’s) and remote SNMP alarm monitoring.
The UPS systems were designed for maximum resilience and flexibility and the low
voltage distribution was designed with a “Mains/Generator” Wrap around bypass
systems to enable the Hospital to completely bypass the UPS modules with
“No-Break” in the event of a catastrophic failure. Dual modules with facilities
for an additional module to be added were provided on the switchboard to ensure
the N+1 redundancy is maintained even with future load increases. The
switchboard was manufactured to Form 4/2 complete with Surge Protection.
The UPS distribution is fitted with intelligent power meters, which are
configured to activate alarms linked to the hospital central power monitoring
system when pre-determined values are exceeded. (System configured as shown in
the diagram)
Socomec Sicon UPS
401-402 Cirencester Business Park
Love Lane Cirencester
Gloucestershire
GL7 1YG
Tel : 01285 644444
Fax : 01285 644414
Andrew.BRYAN@socomec.com
see www.buildingdesign-news.co.uk
Please email jennie@toveypr.demon.co.uk for a high res jpeg
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| The UPS With a "six Pack" | Delphys DS UPS system, Hammersmith Hospital |
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