The UPS Range 3RPQ supplies 60Hz three phase output to ships loads. The UPS consists of a transformer isolated rectifier, battery, an inverter and static switch. The batteries can be supplied either combined with the UPS or as stand alone cabinets. Meanwhile, the rectifier is supplied by the ship’s 440V 3phase 60Hz supply. It powers the inverter and recharges the battery. In normal operation, the rectifier also float charges the battery and supplies the DC input to the inverter. The inverter supplies the output. As a result, when the input supply fails the battery supplies the DC input to the inverter that continues to supply the output. Finally, when the mains returns the rectifier recharges the battery.
As required for naval applications the UPS is meets the necessary ruggedness in terms of shock, vibration and EMC requirements.
Key Features of the UPS Range 3RPQ
- Fabricated mild steel enclosure folded and welded for strength. Bulkhead mounted. Lifting eyes
- IP23 suitable for electrical equipment compartment
- IP44 suitable for machinery spaces
- Naturally cooled via louvers. Individual cooling fans for power assemblies are provided. Allow unrestricted airflow around the unit.
- Front maintenance – Hinged door for access
- Low fire hazard
- Withstands 12g of shock
- Meets shipboard vibration
- Withstands ship motion due to sea action and weather, accelerations and velocities from deliberate ship manoeuvres
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