Critical Power Guides for Facility Managers and Engineers

Practical guidance on UPS systems, generators, batteries, power quality, and data-center infrastructure, written by the team that installs and maintains them. No theory for its own sake — these are the questions we get asked on site.

Three-phase UPS cabinets in a data centre, where usable capacity is set by kW rather than the kVA nameplate

kVA vs kW: Why Unity Power Factor Changed UPS Sizing

Modern UPS run at unity power factor (1.0), so kVA equals kW. Why that changed UPS sizing and how to compare quotes correctly.

CET engineer selecting the operation mode on a three-phase UPS control panel in a plant room

The Four Operation Modes of an Online UPS — and When Your Load Is Actually Protected

The four UPS operation modes — and when each one earns its place Efficiency, protection, and the trade-off every critical-power decision comes down[…]

Amman skyline during peak summer heat, when cooling demand puts the grid and building power under strain

Summer Power Reliability in Amman: What Stops First When the Power Cuts?

Summer Power Reliability in Amman: What Stops First When the Power Cuts? Every summer in Amman, electrical infrastructure faces a familiar test. As[…]

Financial risk of specifying cheap UPS and generator equipment to protect critical loads

The High Cost of Cheap Power: Why You Can’t Bargain on Critical Infrastructure

The High Cost of Cheap Power: Why You Can’t Bargain on Critical Infrastructure The Illusion of Saving Money In the world of electrical[…]

Riello Syntrum three-phase online double-conversion UPS cabinet supplied and commissioned by CET

Why Do You Need a UPS? What It Actually Protects

Why do you need a UPS? The honest answer is not “because the power goes out.” It is because of what happens in[…]

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