Success Story: Modular Triplex Transformer Integration for a Critical Healthcare Facility

Segment and Application

Hospital power distribution system located in a confined basement electrical room within an active patient-care environment. Zero shutdown tolerance continuous power operation required.

The Design Challenge

The original transformer solution met performance requirements but could not be physically transported or installed. The only access path passed through fixed structural openings and live medical utilities located in a below-grade corridor that could not be shut down modified or bypassed.

The barrier was constructability not electrical specification.

Key challenges identified:

• No shutdown windows due to critical patient care
• Interior only access into a basement location
• Restricted route blocked use of a monolithic transformer
• Structural or utility modification not permissible
• Traditional three phase footprint too large to move or rig

The HPS Solution

HPS engineered a Triplex dry type transformer design consisting of three single phase units banked into one complete three phase system. Each section could be transported individually through the confined access route and assembled inside the electrical room. All mechanical and electrical connections were completed on site including LV bus flex braid links, HV terminations, RC snubbers, and surge protection.

The Triplex system was field assembled commissioned and ANSI tested inside the room including insulation resistance turns ratio and fan control verification confirming full operational readiness.

The Results

Observed results:

• No shutdowns required and clinical operations continued uninterrupted
• Modular Triplex design installed safely within existing space constraints
• Full performance delivered and verified through field assembly and testing
• No structural work no bypass power and no facility disruption
• Repeatable blueprint for hospitals labs high rise basements and urban retrofits

Customer outcome:

The hospital received a fully rated transformer system where a standard design could not be installed. The modular Triplex approach proved that accessibility limits can be solved through engineered configuration rather than facility modification or downtime.