Whitepaper:

24 February, 2021

Learn about the key role of capacitors and what steps you can take to minimise the risk of failure.

Every uninterruptible power supply contains dozens of capacitors in both the main power section and at the printed circuit board level.

These key components range in size (from a small drinks can through to a tube of Pringles) and their role (there are AC input, AC output, and DC capacitors in the power section of a UPS). But they all work together smoothing, filtering, and storing energy.

However, along with batteries, capacitors are the UPS components most likely to fail.

In this whitepaper, you’ll learn what factors affect capacitor lifespan and what tell-tale signs suggest a capacitor might be close to failure.

You’ll also find out what actually happens when a capacitor fails and what impact it has on the performance of your UPS.

There are also some top tips you can take to reduce the risk of capacitor failure, including robust routine UPS maintenance and proactively replacing capacitors ahead of their end of service life.

This latter step is often combined with swapping out fans as part of a UPS Overhaul that helps to extend the lifespan of your unit and ensure it runs more efficiently.