Category Archives: Power Management

General information and technical advice on power protection and uninterruptible power supply design for server rooms and datacentres.

The Key Differences Between UPS, Generators and Energy Storage

Datacentre Backup Power Generators

There is often confusion as to the roles played by UPS systems and generators in critical power protection plans. This is more so now that lithium-ion batteries are also turning uninterruptible power supplies into what are now termed as energy storage systems. What’s the key differences between a UPS and generator? Uninterruptible Power Backup Uninterruptible […]

How Lithium-Ion Batteries Will Change Datacentre UPS Installations

Yuasa Lithium-Ion UPS Batteries For Datacentres

Lithium-ion batteries represent a technology that can disrupt the traditional data centre UPS market place and its reliance on valve regulated lead acid (VRLA) batteries. Other energy storage technologies have tried to disrupt this market place, including super capacitors and DC flywheels. The benefits of lithium-ion (li-ion) batteries mean that this new battery technology is […]

How To Choose Between Single and Three Phase UPS Systems

Sometimes it is easy within a server room or data centre environment to take for granted the relative ease with which we can simply plug IT network servers and peripherals into a PDU outlet or UPS powered socket. These connections form the final element of what we term the ‘critical power’ path. They are the […]

How Generators and UPS Systems Provide Backup Power

Lead Acid UPS Batteries

Generators and uninterruptible power supplies (UPS) are designed to provide back-up power when the mains power supply fails or fluctuates wildly. There is a principle difference between how these two power protection devices achieve this and it lies in the generation and storage of the energy they provide. Prime Power or Standby Power Generators Generators […]

Lithium-Ion UPS Systems For Datacentre Applications

Liithium Ion Datacentre UPS Batteries

The UPS system or uninterruptible power supply that we know today evolved from the oil industry and its need for backup power protection for computer operations in the 1960s. Today’s UPS systems provide a similar solution, but the world of backup power has changed dramatically since that period driven by a host of factors and […]

How To Size UPS Systems In kVA and kW

Server Switch Mode Power Supplies

Within a server room or datacentre environment an uninterruptible power supply should be sized to meet day-one loads and provide additional capacity for future expansion. A UPS system is just one element of the critical power path which can also include building incomers, transformers, LV switchboards, switchgear, distribution panels and power distribution units. It is […]

Comparing Monoblock and Modular UPS Systems

Eaton 93PM Modular UPS

Most uninterruptible power supplies above 10kVA have the facility for parallel operation. This means that two or more UPS systems can be connected in parallel to provide N+X resilience or increased total capacity. Monoblock UPS systems are fixed capacity systems. The only way to add additional power to a UPS installation is to add another […]

How Edge Computing Will Drive Power Innovations

Micro Datacentres For Edge Computing

Whilst many everyday people are still trying to come to terms with and understand what ‘Cloud’ computing means along comes ‘Edge’ computing. The two are in fact inherently related. Few realise that Amazon through its AWS (Amazon Web Services) is one of the largest cloud-based datacentre service providers. Microsoft and Google are others. What these […]

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