Diesel Generator for Hospital Backup Power
Southeast Asia — 1,250 kW Standby
Project Overview
Hospitals depend on uninterrupted power for life-safety systems, operating theatres, intensive care units, imaging equipment, and HVAC. A grid outage that halts ventilation or life-support equipment is a direct risk to patient safety, so hospitals are among the most demanding standby-power applications. This hospital required a diesel generator for hospital use that would meet NFPA 110 life-safety requirements and accept full load within seconds.
H&C supplied a 1,250 kW standby generator built around a Cummins KTA50 engine and Stamford alternator, housed in a sound-attenuated, weatherproof canopy. The system starts automatically on mains failure, transfers the hospital's essential and life-safety loads, and maintains stable voltage and frequency through step changes such as elevator and imaging-equipment inrush.
Challenge & Requirements
The hospital required a diesel generator for hospital standby that complied with NFPA 110 for emergency power, including a 10-second load-acceptance time and adequate on-site fuel for extended outages. Low noise was essential near patient areas, and the system needed to handle the inrush of motors, MRI chillers, and elevators without voltage collapse. A redundant fuel supply and automatic, unattended operation were mandatory.
Technical Specifications
| Parameter | Specification |
|---|---|
| Generator Model | HC-1250GF |
| Rated Power (Standby) | 1,250 kW / 1,563 kVA |
| Rated Power (Prime) | 1,125 kW / 1,406 kVA |
| Engine | Cummins KTA50-G3 |
| Alternator | Stamford HCI544F |
| Controller | Deep Sea DSE7320 |
| Voltage / Frequency | 400V / 50Hz |
| Rated Speed | 1500 RPM |
| Cooling Method | Water-Cooled Radiator |
| Starting Method | 24V DC Electric Start |
| Fuel Tank | 2,000L Day Tank + Bulk Storage |
| Enclosure / Noise Level | Weatherproof Soundproof Canopy — ≤75 dBA @ 1m |
| Dimensions (L×W×H) | 5,400 × 2,100 × 2,500 mm |
| Dry Weight | 10,500 kg |
| Compliance | ISO 8528-5, NFPA 110, ISO 3046-1 |
Solution & Implementation
H&C configured a Cummins KTA50-G3 engine matched to a Stamford HCI544F alternator for 1,250 kW standby output, controlled by a Deep Sea DSE7320 for automatic start, transfer, and remote monitoring. The unit was specified with a heavy-duty alternator and governor to hold voltage and frequency stable under block loads.
The generator was assembled and full-load tested at the H&C factory, including a 100% load bank run and step-load response verification. A sound-attenuated canopy keeps noise within hospital limits, and the fuel system includes a day tank with bulk storage and transfer pumps to support extended runtime.
H&C managed export logistics and on-site commissioning with the hospital's engineering team. Installation covered the automatic transfer switch, cable termination, and integrated testing of the emergency power system before handover, operator training, and delivery of a complete spare-parts kit.
Project Gallery
Robotic welding of the generator base frame in the H&C factory
CNC press brake forming enclosure panels in the H&C factory
Full-load factory testing before shipment
Project Results
The diesel generator for hospital standby has passed all NFPA 110 commissioning tests and monthly test runs, providing reliable life-safety power through every utility interruption since installation.
The hospital reported full confidence in the system's fast, automatic response and low noise, and has retained H&C for ongoing service and maintenance support.
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