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How does an Uninterruptible Power Supply Work?

Vital Power is a leading provider of diesel generators in the UK. We stock a range of leading brand names and work with businesses across the country on bespoke, custom built generator solutions.

In today’s fast-paced world of business, uninterrupted operations aren’t just an aspiration – they’re a necessity. When so many of us rely on digital infrastructure for every element of our lives, even a brief power outage can translate into significant data loss, operational downtime, and financial setbacks.

That’s where our leading Uninterruptible Power Supply (UPS) systems come to the rescue. But how does an Uninterruptible Power Supply work? We’ll guide you through the intricacies of our UPS solutions and explain how they work to protect your business against power disruptions.

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The User Flow

Step 1

Contact Us

Looking for a generator for your site? Contact us via the contact form below or give us a call to get started with your critical power solution

Step 2

Tell us your requirements

Our team will discuss your requirements with you, explaining the options available to you.

Step 3

Site survey

One of our highly skilled generator engineers will visit your site to map out to take note of your power requirements, where the generator will be installed, answering any questions you may have

Step 4

Delivery, installation & commissioning

Once the order has been placed, our team will then install your generator on site. We also carry out rigorous commissioning processes to ensure that your equipment is ready to support your site.

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What is a UPS system?

So, what is an Uninterruptible Power Supply (UPS for short)? An Uninterruptible Power Supply is a device/system that provides emergency power to connected devices when the primary power source fails.

Your UPS serves as a crucial safeguard against power interruptions like outages, weather events and brownouts, allowing you to save your work, shut down your devices safely, or continue operations seamlessly, depending on the capacity of the UPS and the devices connected to it.

At Vital Power we specialise in the commissioning, installation, maintenance and repair of UPS systems for business. As well as diesel generators, UPS systems are what we specialise in, and our team works round the clock, across the country, to help businesses stay online.

How a UPS system works

Put simply, a UPS system monitors the supply of electrical current being supplied from the grid or mains. If this level of voltage reaches an ‘unacceptable’ level, the UPS starts up and switches to battery power to protect your business’ vital equipment.

During normal operation when everything is normal, the UPS connects your devices directly to the main power source. The device then continually monitors the voltage and frequency of the incoming power to ensure it falls within a safe range. If the power quality deteriorates – for example if there’s a drop or spike in voltage – the UPS starts up automatically to protect your devices.

What happens when there’s a power outage with a UPS?

If there’s a power outage – for example because of a mains issue or weather event – your UPS will notice the change in voltage input. When the system detects a power interruption, it swiftly switches to its internal battery. This process occurs almost instantaneously, which means there’s minimal disruption to your devices’ operation.

Once the UPS is running on battery power, it provides a consistent and clean power supply to your connected devices. How long the UPS can supply power to keep you online depends on its battery capacity and the power consumption of the devices it supports. Ensuring your UPS efficiency is the best it can be will help maintain power for longer.

Some UPS systems are designed for short-term power backup, allowing you to shut down your equipment gracefully, while others can provide extended backup to keep your devices running for an extended period.

What happens when the power cut is over?

When the mains is back to normal, the UPS switches back to the mains power and your business can continue running as usual! After it’s stopped running on battery power to supply your equipment, the UPS also begins recharging its internal battery to ensure it’s ready for the next power interruption.

Our engineers can help replace a UPS battery or assist with any maintenance or repairs. Regular maintenance and upkeep means you can rest assured you’re covered in the event of any power cuts.

Got a question? We’re always happy to help.

Contact us to learn more about our range of generator services across the UK

What Our Customers Are Saying

"Your engineer was absolutely brilliant - he got the generator working again really quickly and so I have power; he was also really professional and a real asset to your company. I would recommend your company in a heartbeat. Thank you all for helping me out in a time of need. I'm very grateful."

Site Manager

"I would like to say that your company is very customer driven. To offer a service outside your normal scope to fulfil a market need is exceptional and professional. When our new generator requires a service, I will contact Vital Power again"

Maintenance Manager

"I wanted to say a big thank you for the way my generator was installed by one of your engineers. It was done extremely professional and quickly. The engineer projected a tremendous sense of enthusiasm and confidence – and his small-talk is also most interesting to hear. I was left in awe of his complete understanding of the installation requirements. He even management to iron out a difference on the auto start that the manufacturer did not tell him about. A very clean and good working in all respects, he is a tribute to your company"

Site Manager

"Everyone at Vital Power is very professional. I was really impressed with Managing Director, he worked very hard to make sure we were happy and got everything right. The engineers were superb and extremely professional when they came to inspect our cabling requirements. We couldn't be happier with the result and I couldn't fault the work at all. We're really pleased."

Site Manager (BituChem)

"Very happy with the engineer that was on site yesterday to get involved with the power switchover. All went successfully and brilliant result! Thank you."

Maintenance Manager

"Credit to Warren, he's been absolutely unbelievable. To get the generator working in the time that he has is amazing. Great work and thanks again."

Contracts Manager

"I have just received a phone call from the client in regards to the engineer’s visit yesterday. They were very impressed by him, so much so they are thinking of switching all other generators they have over to you. It’s so good to get positive feedback, thanks again for your help"

Contracts Manager

"Your engineers are great, they are keen to help and work proactively to get things done. We were also seriously impressed with Phill Walters getting an emergency hire set to us in just 2-hours from the initial phone call!"

Engineering Manager

Supplier brands we work with

PerkinsKubotaVolvo PentaKohlerDoosan

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