Energy consumption and the environment
 

Welcome to our energy Archive. Have fun browsing!

 

(Browse for more articles)

 

Centralised V Distributed Uninterruptible Power Supplies (ups)

On the one hand, there's the management is grouped into data processing clusters,
issue of controlling several smaller each with dedicated UPS protection,
units attached to vital equipment or each giving several smaller power plants
separate network. On the other, the cost spread across the whole operation.
and reliability implications of having to Distributed UPS often require lower
install a dedicated ring main system for capital outlay and installation costs.
power management; if the central UPS Some suppliers claim higher overall
fails, so does the whole system! operating efficiencies because the number
When planning business continuity, a of conversions from mains AC to DC is
centralised UPS is normally more reduced - leading to energy savings.
powerful, functional, sophisticated and The primary advantage of centralized UPS
automated than a solution based on a Smaller UPS generate less heat than
distributed architecture. What's more, larger ones, leading to greater
it's usually housed away from the main efficiency. Distributed systems also
data centre. Distributed UPS, however, is reduce the total number of power
simpler and less costly to install; vital conversion steps; consequently,
equipment can be protected independently, electronic components and circuit
and thus it is shielded from a central complexity are both reduced. Distributed
power outage. solutions, however, generally have more
Deciding on a UPS solution? components, which could increase the
When planning power and business likelihood of breakdown. As each data
continuity, one of the main issues is to centre processing cluster has its own
protect against uninterruptible power supply, confusion
'single-points-of-failure'. In practice, about which equipment is protected
both centralized and distributed UPS against power outage by which UPS is
solutions work well - providing the eliminated. Likewise, maintenance and
system is designed with appropriate battery changes are localised to
redundancy and a built-in maintenance individual clusters thus reducing
by-pass (allowing UPS maintenance without downtime elsewhere in the business.
loss of power to the load). The primary advantage of centralised UPS
A centralised uninterruptible power over smaller, distributed UPS lies within
supply usually forms part of the batteries. Smaller UPS contain sealed
facility, as it has to be housed securely lead-acid batteries - with a typical
away from the main business. In the past, design life of five years or less. The
these systems were only meant to protect cost implications of this depend on the
against short-term power outage but this number of UPS clusters. Larger batteries,
is now changing. With modern UPS regarded used in centralised UPS, have longer
as a lifeline service, battery back-up, design lives.
failover, redundancy and maintenance Another business continuity benefit of
by-pass are all now an integral part of centralised UPS is that, being housed
their design. Centralised solutions use a away from 'busy' areas of the building,
single UPS to feed a custom built ring it is less easily disrupted, accidentally
main, which supports numerous items of damaged or maliciously interfered with.
critical load or dedicated networks. Always invest in expert UPS consultancy
The alternative is a distributed In conclusion, distributed UPS, though
decentralised system, with each piece of easier and less costly to expand, can
data centre equipment powered by a cost more per-kilowatt than a centralised
smaller individual UPS. system. Centralised systems, however, are
Load utilisation and your uninterruptible more expensive initially to build and
power supply must be carefully designed to meet future
In terms of load utilisation and battery business continuity needs. Large-scale
capacity, a centralised uninterruptible Power-over-Ethernet (PoE) deployments of
power supply can be more versatile and IP phones, wireless access points,
cost efficient. However, the installation internet security cameras and other
of a dedicated ring main can be expensive peripherals may favour a centralised
- especially if the loads are spread uninterruptible power supply solution
around a building. While distributed through lower whole-life costs.
solutions may not optimise load capacity When planning power and business
and extended run time, the effects of UPS continuity, the wisest option is to treat
failure may be reduced when compared to each network on a case-by-case basis and
the business continuity implications of a always invest in expert UPS and business
poorly-designed, failed centralised UPS. continuity consultancy.
Distributed UPS means that the business




www.powerdown.net keyword stats [2008-08-11-2008-08-11]



Other search engines trends:



Other search phrases:

exhaust energy of an electric power solar power energy projects
oil power plants nuclear power plants produce electricity
nuclear power plants vs coal and gas effect of environment
the effects of computers in the why is acid rain an environmental
fuel in nuclear power plants power plants solar
air pollution and acid rain hydroelectric power plant energy chain
effects of humans on the environment legal intellectual property
waste and air pollution epa water quality
Define Indoor Air Quality effects to earth nuclear power
graduate program economics solar powered electric vehicles
arctic national wildlife refuge drilling secretary tommy thompson
safety assessment of function and the pollution does not cause global warming
How are other organisms affected by solar powered electric plants
michigan department of environmental identify climate and topographical
global warming climate changes Causes and Effects of Electricity Power
environmental effects of hiroshima hydrogen fuel cell power plants
environmental effects of nitrogen health effects of pollution





1 - A - B - C - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 -