Papworth Hospital

Power Control helps to save lives at Papworth

The solution and results

Working in close collaboration with a third party contractor, Nigel Thompson (now of T. Clarke East) Power Control designed and developed two transformer based 250kVA Borri B9000FXS UPS systems in accordance with Siemens parameters, with custom built switchgear, to allow full automatic operation of the facility.

The Borri B9000FXS UPS systems are providing reliable and efficient backup power for critical patient scanning procedures especially during fluoroscopy and full acquisition phases of the Artis Zee.

All of the UPS modifications underwent rigorous analysis and functional testing and were witness tested at the UPS solutions manufacturing facility in Italy, Borri Spa to make sure everything was working as intended before delivery and installation. The UPS units were then further tested beyond their requirements successfully on site once installed.

Now positioned within a GRP external enclosure at the hospital in Cambridge, the two bespoke UPS units have been placed in a parallel redundancy configuration to provide ultimate power protection. This level of safety means that even in the case of a mains disturbance the medical scanner will be fully operational and will not have any detrimental effects to a patient undergoing the treatment.

Not only are the UPS systems providing Papworth Hospital with reliable backup power but the highly advanced input characteristics of the B9000FXS units means that they can also be powered by a single 300kVA standby diesel generator, bringing significant cost saving advantages.

All of the Borri three-phase UPS systems come with a unique three-year manufacturer’s warranty, which help to dramatically reduce any unplanned maintenance costs. For added piece of mind, Papworth Hospital is also taking advantage of Power Controls Gold Service maintenance package, which provides 24-hour support and covers labour costs with a guaranteed response time to site.

About the Product


Designed and built to the highest manufacturing standards, the Borri B9000FXS online double conversion UPS can achieve up to 95% efficiency and substantial savings in energy costs which is very important in a publically funded domain.

Certified by TÜV NORD Cert as one of the most efficient and resilient transformer based UPS systems on the market, the Borri B9000FXS demonstrate best in class efficiency standards of up to 95%. They have a negligible effect on the mains supply as they come with IGBT (Insulated Gate Bipolar Transistor) rectifiers as standard, which provide less than three percent harmonic distortion.


The Borri B9000FXS also boasts:

  • Three year warranty for peace of mind
  • Front access for ease of use
  • Scalable up to 8 units in parallel for changing needs
  • IGBT rectifier for newer technological advances and faster switching
  • Smart Online functionality >98% for efficiency
  • Internal galvanic isolation transformer to increase efficiency but reduce weight and size
  • THDi <3% with input power factor >0.99 to reduce power distortion and installation costs
Papworth Hospital 1

I was already aware of Power Control’s superior UPS portfolio and knew that they would be the most suitable partner for this job as they are renowned for delivering reliable backup power solutions. In an environment where available backup power could be a case of life or death, choosing the right UPS system was absolutely critical. Power Control was able to offer us a bespoke UPS solution customised to fit in with our exact operational and design specifications. Papworth Hospital has been delighted with the performance of the UPS and is even more thrilled that Power Control was also able to provide a solution that delivers exceptional efficiency and long-term cost savings. Mr Thompson concluded: Power Control’s attention to detail and technical expertise is second to none and I am already working with them on several new projects. The technical team both in the UK and Italy are exceptional and have ensured our design met all the requirements and I would have no hesitation in recommending them for future jobs. Both engineering teams have been and continue to be a pleasure to work with.

Papworth Hospital 2
Nigel Thompson

Papworth Hospital

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