120kVA low-frequency UPS for a Fujifilm CT scanner in Guatemala

A hospital in Guatemala needed a dedicated UPS for a Fujifilm CT scanner. Most UPS suppliers in this capacity default to 380V or 400V three-phase systems, but the site runs on three-phase 200V and the CT equipment expects the same. Matching both the local utility and the scanner's input specification required a custom transformer design rather than an off-the-shelf unit.

TAFENG supplied a customized 120kVA low-frequency UPS with a built-in isolation transformer. The isolation transformer provides galvanic isolation and helps reduce electrical noise from the utility supply. The hospital's engineering team reported that installation went smoothly, and the UPS has run stably since commissioning.

Project snapshot

Project requirements

The hospital needed a UPS that could be integrated with its Fujifilm CT system and existing three-phase 200V power supply.

The main requirements were:

• 120kVA capacity
• Three-phase 200V input and output
• Compatibility with the Fujifilm CT system
• Electrical isolation between the utility supply and the CT equipment
• Stable power during CT scanning and normal operation

Because the voltage and application requirements were specific to the installation, the UPS configuration was customized rather than using a standard configuration.

TAFENG solution

TAFENG provided a 120kVA online low-frequency UPS with a built-in isolation transformer.

CT and MRI scanners are sensitive to voltage distortion and harmonics. For this project, the low-frequency UPS with an integrated isolation transformer delivers the voltage configuration, galvanic isolation, and cleaner input power the CT system needs — lowering the risk of voltage-related image artifacts or scan interruptions.

The UPS was configured with three-phase 200V input and output to match the hospital's electrical system and the Fujifilm CT installation.

Installation

The UPS was installed in the CT room at the hospital in Guatemala and connected to the Fujifilm CT system.	Installation photos: BLAZING POWER UPS cabinet, Fujifilm CT scanner, and internal UPS components.	After commissioning, the UPS has continued to run stably in the hospital's CT application, providing continuous power protection without interruption.

Project result

This project shows how a UPS can be customized around the actual electrical requirements of medical imaging equipment, not just its rated capacity.

For this Guatemala hospital, the final configuration combined:

120kVA capacity + three-phase 200V + low-frequency architecture + built-in isolation transformer

to meet the requirements of the Fujifilm CT system.

Planning power protection for a CT or MRI?

Send us:

• Imaging equipment model and power requirement
• Site voltage and frequency
• Required backup time
• Single-phase or three-phase supply
• Installation space and cooling conditions

Our engineering team can review these parameters and recommend a suitable UPS configuration.

BLAZING POWER is the UPS and power-conditioning brand of TAFENG, supplying low-frequency UPS, voltage stabilizers, and isolation transformers for medical and industrial applications.