Advertisement Feature Cover Story The benchmark for power protection
Modern society is built on a foundation of data, with data centres becoming the lifeblood of health authorities, banks, government departments, retail outlets and almost every other entity that touches our lives. As Uninterruptible Power Supplies (UPSL) explain, a reliable UPS will guarantee this essential flow of continuous, clean power to the data centre and other IT facilities, no matter what happens to the power supply
o critical data centre operates without an effective UPS and increasingly, even non-critical loads are relying on UPS systems to maximise availability and ensure a true no-break solution. ‘Zero down-time’ is now often an essential aspect of data centre operation. To attain this level of security, a continuous supply of clean power must be guaranteed, of which the UPS is a key component. UPSL’s latest UPS system, the PowerWAVE 9500DPA, has been designed from the ground up, specifi- cally to guarantee that data is available 24/7. UPSL has a range of high effi- ciency UPS products that cover the full breadth of applications, including data centres of all sizes. Because UPS relia- bility and zero down-time are so crucial, these features have been made corner- stones of UPSL’s UPS design philoso- phy. Furthermore, because data centres now consume more energy than some major industries, data centre operators greet the significant reduction in energy bills achieved through high efficiency UPS systems with open arms. UPSL’s newest UPS offering contin-
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ues this tradition. With its standardised modular approach, low power con- sumption and high reliability, the PowerWAVE 9500DPA provides a UPS solution well suited for all types of data centres from 100kW up to 3MW.
DPA
The decentralised parallel architecture (DPA), upon which the PowerWAVE 9500DPA is based, refers to each 100kW UPS module containing the hardware and software required for full system operation. The modules common components,
share no with each
module containing its own independent static bypass, rectifier, inverter, logic control, control panel, battery charger and batteries. With all the critical com- ponents duplicated and distributed between individual units, potential single points of failure are eliminated. In the unlikely event that one UPS module does encounter a problem, the overall system will continue to operate normally, but with one less module of capacity. The failed module will be fully disconnected and will not impact the remaining operating modules.
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Modular This modular approach means you can size the UPS to exactly fit your needs and simply add modules as your require- ments grow. Adding capacity is easy - five 100kW modules can be mounted in one frame and six frames can be config- ured in parallel to provide a top rating of 3MW. The PowerWAVE 9500DPA is the only modular UPS on the market that can easily add increments in this way. The resulting savings in power usage over the service life of the UPS are substantial. A further advantage is that the modular approach makes it easy to add redun- dancy and to further augment availabil- ity and reliability. The PowerWAVE 9500DPA modules are truly ‘hot swappable’, meaning they can be removed or inserted without risk to the critical load and without the need to power down or transfer to raw main supply. This feature directly addresses continuous up-time requirements, sig- nificantly reduces mean time to repair (MTTR), reduces inventory levels of specialised spare parts and simplifies system upgrades. This approach also pays dividends when it comes to ser- viceability and availability - swapping of online modules means you don’t have to switch off during replacement, so there is no down-time. This all leads to better risk management and an afford- able, yet efficient, after sales service, hence the lowest total cost of ownership in its class.
The straightforward concept of the PowerWAVE 9500DPA simplifies every step of the deployment process - from planning, through installation and commissioning to full use. This hot swap technology, along with significant reductions in repair time, can help achieve so-called six nines (99.9999%) availability - highly
Above: the PowerWAVE 9500DPA offers vertical scalability, with up to five 100kVA modules in a single cabinet, alongside horizontal scalability, with cabinets able to be paralleled to reach 3MW
Below:
demonstrating the ease with which single modules can be added or
replaced, without exposing the critical load
desirable for data centres in pursuit of zero down-time. UPSL’s PowerWAVE 9500DPA oper-
ates with an efficiency of up to 96% or greater than 99% in Eco Mode. Its effi- ciency curve is very flat so there are sig- nificant savings in every working regime. This gives this particular prod- uct the lowest total cost of ownership of any comparable UPS system. Further, cooling costs in data cen- tres are substantial. Because it con- sumes less power, the PowerWAVE 9500DPA requires less cooling effort, generating further savings. It also has a compact footprint - well suited for data centres, where real estate can be limited and expensive.
Summary
Standardisation and modularisation have revolutionised the design of power back-up systems for data cen- tres. Today, power systems for appli- cations large and small can be built by using the same pre-designed, pre- manufactured and pre-tested sub-sys- tems as building blocks. Standardising UPS systems to serve load segments of different sizes is now a reality. The benefits are clear - faster implementation, flexibility, scalability and controlled capital spending. Standardisation also enables the use of ready-made inter- faces and management modules and simplifies integration with other data centre systems, such as UPSL’s data centre monitoring software. Data centres of different sizes or in dif-
ferent phases can now apply one stan- dard
product. ThePowerWAVE
9500DPA opens this new door because it not only provides load protection for data centres up to 1MW, but it allows easy expansion to a much higher rating (up to 3MW) - and all by adding stan- dardised
additional modules.
Standardisation and modularity will drive new UPS designs and we will see further refinement of the decentralised parallel architecture, higher maximum power ratings and even more energy effi- cient solutions.
Uninterruptible Power Supplies (UPSL)
www.upspower.co.uk T: 0800 171 2320
Enter 200 DECEMBER/JANUARY 2014 Electrical Engineering
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