Reliability is great, but availability is better
If asked to name our UPS’s most vital attribute, we may be tempted to say ‘reliability’. However, while reliability is indeed essential, it’s not the ultimate goal. What really counts...
Some practical load aspects to consider when specifying your UPS
When specifying a UPS, you would no doubt choose a capacity that would be adequate for the data centre or IT room that it’s intended to support, with provision for...
The role of generators in a protected power infrastructure
During normal mains availability, online uninterruptible power supplies protect their critical load from transients, noise and any other anomalies imposed onto the data centre’s power network from upstream. Additionally, the...
How operating in Xtra VFI mode improves UPS energy efficiency
The advent of transformerless technology not only improved double-conversion UPS energy efficiency; it also maintained this high efficiency over a much wider load range. Nevertheless, if the load drops to...
The importance of the right UPS service contract
Any organisation that invests in an uninterruptible power supply system demands clean, uninterrupted power with 24/7/365 availability for their mission-critical ICT resource. This demand is driven by data centre downtime...
The UPS as an IoT node
The Internet of Things (IoT) is a collection of technologies that continues to grow rapidly because it gives us so much insight into, and control of, the world around us....
PowerWAVE 9250DPA Modular Uninterruptible Power Supply
PowerWAVE 9250DPA UPS system from Kohler Uninterruptible Power. The PowerWAVE 9250DPA is a true modular uninterruptible power supply system, scalable from 50kW up to 1.5MW, for medium power applications in critical,...
Why only on-line UPS topology provides true critical load protection
Modern, static UPS power systems are broadly classified into three design architectures: on-line, off-line and line interactive. This post describes and compares the three types of uninterruptible power supplies and...
Decentralised parallel architecture – what it is, and why it’s essential for ‘True Modularity’
Transformerless UPS technology, once established, rapidly became dominant because it enabled much smaller, lighter power solutions. These allowed uninterruptible power supplies to be built from several relatively small UPS modules...
Choosing the right UPS battery technology
There is no single ‘best’ UPS battery technology; each approach has its own strengths and weaknesses, and it is up to each data centre operator to choose the one that...
Choosing the right UPS generator
This post looks at why your uninterruptible power supply may need a backup generator, and how to set up a matched UPS-generator pair. Online uninterruptible power supplies ensure power quality...
Efficient power protection for large-scale data centre operations
Large-scale data centre operations are now being built. One of the largest, the QTS Atlanta-Metro Data Center has over 970,000 sq ft of total space, complete with its own on-site...