The Client

The Royal Marsden Hospital is a specialist cancer treatment hospital, founded in 1851 in Westminster. It is a leading oncology pioneer and innovator. It is situated in two facilities that offer not only treatment and care, but also function as research, teaching and training centres

The Requirement

As the Royal Marsden cares for over 50,000 people each year, it is essential for them to have top quality power protection for their critical diagnostic and surgical equipment. The sheer scale of the site and the sensitive nature of the equipment made their requirement to be protected in the event of a power outage a major challenge.

Our Solution

To provide the level of power protection the Royal Marsden needed we had to supply a UPS capable of completely isolating the site load from utility power and which would protect the hospital's vital equipment from potential damage caused by fluctuations or surges. The UPS also had to be able to deliver enough power density to take up the entire load in the event of an outage and provide a high-quality and consistent supply at the right voltage to run all the elements of the hospital's operational infrastructure. However, a UPS of this capacity, powering such a massive load, needed additional support to create a comprehensive system that could guarantee continuous power would be supplied to the site.

Our solution was to provide an Eaton 9155, which is specifically constructed to provide premium backup power for environments that cannot cope with a m a moment's downtime. Employing a double conversion design that completely isolates equipment from utility power, the 9155 provided an autonomous supply and acted as a buffer between potentially unstable grid power and sensitive hardware.

However, the 9155 required augmentation to deliver the necessary power density. We decided therefore to combine the 9155 with an 8kVA single-phase Isolated Power Supply (IPS), in order to increase the voltage of the supply delivered to the 9155. By supplying a regulated output voltage to the UPS, the IPS compensated for the lack of a necessary neutral connection in the wiring of the hospital building.

This solution enabled us to fulfil The Royal Marsden's need to protect the lifesaving equipment that enables them to provide the best level of care for their patients.