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High Wycombe Data Centre – UPS Upgrade 2022

The time has come to upgrade our existing UPS.

With the help of our friends at BCL Power, we decided to upgrade our current Eaton UPS to a new Riello UPS.

Sentryum is Riello UPS’s third generation of transformerless ONLINE UPS. Delivering outstanding performance with a unity power (pf 1) and up to 96.5% efficiency in a compact footprint, it’s a proven solution for data centres and similar applications.

Delivery Day

Ricky and Jason arrived on site to unload the 250KG UPS into the data hall and complete a quick test fit before the big install in the coming days. 

Installation Day

Ricky and Josh arrived back on site to complete the UPS installation. This involves using the external UPS Bypass Panel to statically bypass the existing UPS without dropping the power to the critical load running in the data hall. Once this is complete the existing UPS can be powered down and removed and the new UPS connected.

Why Riello?

We decided to go with the Riello UPS for its amazing power capacity and 1:1 power efficiency. In simple terms, when dealing with Uninterruptible Power Supplies (UPS), the closer to a unity power factor of 1 you can get, the less energy is wasted.

Let’s look at this example:

A 100 kVA UPS with a rated output power factor of 1 can handle loads up to 100 kW active power and 100 kVA apparent power. If the power factor is a more common 0.8, these loads become less at 80 kW and 100 kVA, respectively.

Riello UPS Highlights

Reliable And Efficient

Our transformerless UPS delivers unity power (pf 1) and operating efficiency of up to 96.5%, which helps you minimise wasted energy. It features a unique control system that reduces harmonic voltage distortion (<1% at resistive load and < 1.5% at non-linear load). Ideal for capacitive loads like blade servers.

The Sentryum can also handle high overloads (125% for 10 minutes or 150% for 1 minute) and short circuits (270% for 200ms or 150% for 300ms), meaning you won’t have to transfer to bypass to deal with sudden peak loads.

Scalable Power

Easily increase your power or battery autonomy by installing up to 8 Sentryum UPS in parallel (3-phase version).

Parallel installations operate on a closed-loop system, so your UPS will keep running even if there’s an issue or disruption with your cable connection.

Enhanced Performance

Sentryum builds on previous Riello UPS transformerless series such as the Multi Sentry (MST), with an optimised card layout that reduces the number of components, cables, and interconnections.

This reduces the amount of installation space your UPS will need and makes it far easier and more cost-effective to maintain.

Power At Your Fingertips

Take control with a 5-inch colour touchscreen display panel which clearly shows real-time information and allows you to easily adjust the operating mode.

Also features an innovative new LED status indicator which automatically changes colour depending on the current operating mode and UPS status. In-built wheels enable easy manoeuvrability.

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