THE CLIENT
A major EPC contractor operating in Central Asia for the construction of a hospital.
THE NEED
In Central Asia, grid fluctuations are frequent and, in a hospital, they can cause:
- Shutdowns in operating theatres, intensive care and diagnostic rooms;
- Artefacts and repeated scans in CT/MRI/angiography exams;
- Malfunctions in laboratory equipment;
- Stress on UPS systems and reduced battery lifetime;
- Resets and data loss on clinical IT and IoT systems;
- Overheating in HVAC and lighting systems;
- False alarms and degradation of the quality of the distributed energy.
It was therefore necessary to protect critical equipment from these fluctuations and improve operational continuity.
OUR SOLUTION
To meet the EPC’s specifications, we supplied two SIRIUS 1600-20 electromechanical voltage stabilizers (optimized version, digital phase-by-phase control).
Main technical data:
- Rated power: 1600 kVA; efficiency > 98%.
- Input range: ±20% (320–480 V); output accuracy: ±0.5% at 400 V.
- Currents: maximum input 2887 A; nominal output 2309 A.
- Regulation speed: 18 ms/V; permitted load unbalance: 100%.
- Surge protection: Class I SPD at the input and Class II at the output; supercapacitor for optimal voltage restoration in case of blackout.
- Control and communication: 10″ touch HMI, Ethernet/USB/MODBUS; IP21 protection; indoor installation.
Each unit is equipped with a TPK (Total Protection Kit) consisting of:
- 2500 A (3P) incoming circuit breaker;
- 2500 A (3P) interlocked automatic bypass;
- 2500 A (3P) motorized outgoing circuit breaker.