UPS & DG Power Backup for Imaging Equipment
Imaging equipment does not tolerate a power interruption the way office or general medical loads do. A dropped scan, a lost console and a mid-procedure cathlab outage each carry a different cost — and backup has to be sized against what the equipment actually demands, not a generic wattage assumption.
Why imaging needs dedicated backup
A CT console losing power mid-reconstruction, an MRI monitoring system dropping out, and a cathlab losing imaging during a live case are not equivalent risks — and none of them is equivalent to a lighting circuit going dark. Each modality gets its own load profile and its own backup strategy, rather than one blanket UPS and DG specification applied across the building.
Sizing against real peak load, not brochure figures
Imaging systems draw a high momentary current during exposure, well above their average consumption. Sizing against an average figure, or against the headline number on a spec sheet, produces a supply that works in testing and fails under load.
The study covers connected load and momentary peak demand for your specific equipment model, and it adds in what the brochure figure leaves out — console, workstation, monitoring, room services and cooling.
DG backup and changeover
DG capacity is sized for the full imaging suite plus the other critical loads sharing it. Just as important is the changeover: an automatic transfer fast enough that a scan in progress or a live case is not interrupted by the transfer itself. Backup runtime is matched to realistic procedure length rather than a standard building-wide figure.
Isolation transformers and power quality
Voltage fluctuation and harmonics on the grid supply affect sensitive imaging electronics over time even when there is no outright outage. This is a slow failure mode, and it usually gets blamed on the equipment. Isolation transformers and power-quality correction are specified where the equipment tolerance calls for them.
Panels built in-house, not subcontracted
LT panels and distribution boards are designed and fabricated by our own teams, so the electrical scope is built and commissioned by the same party accountable for sizing it correctly — rather than handed to a separate vendor after the design is done.
Earthing is part of the same problem
Backup power and earthing cannot be designed in isolation from each other. A clean, dedicated earth within the manufacturer tolerance is what keeps the supply usable once it reaches the equipment. See our guide to earthing and grounding for imaging equipment.
Power backup, answered.
How is UPS sizing different for a cathlab versus a CT room?
Does every imaging room need its own DG, or can one serve the whole facility?
What kVA does a CT scanner need?
Our scanner throws intermittent faults. Could it be power?
Do you supply the UPS and DG, or just design them?
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