The Transformer Rectifier Unit type 3RC3K provides a high quality output of 27.4 volts dc. This unit is also float charges valve regulated lead acid batteries. It can also be set for 24V for ships 24V systems.
The TRU has an input isolation transformer and a 12 pulse thyristor rectifier configured as two fully controlled bridges combined in parallel by an interphase transformer. This combination produces a very smooth DC output and eliminates all harmonics below the 11th from the input current waveform. In addition to this, the input current to the equipment is close to sinusoidal with a “traditional” lagging power factor dependent on loading and mains voltage.
This comes in a custom steel enclosure and measures 920mm x 723mm x 469mm. It also bulkhead mounts and can withstand shock levels up to 30g. Please use suitable shock mounts for shock levels above 30g. In addition to the qualities listed, this unit has an Ingress Protection level of IP23. Access for maintenance and repair is located on the front hinged door. This door also contains panel meters that indicate lamps and the mains ON/OFF switch. Furthermore, louvres pressed outwards on the front and sides, with a grill on the bottom of the assembly provide fan assisted cooling during normal operation. Alternatively, natural convection occurs when the Anti Condensation Heaters are operating.
Key Features of the Transformer Rectifier Unit 3RC3K
- Fabricated mild steel enclosure folded and welded for strength. Bulkhead mounted. Lifting eyes
- Dimension: (O/A)(hxwxd) mm 920 x 723 x 469 – allow a clearance of at least 100 mm should be allowed around the unit to allow proper ventilation.
- 162kg weight
- IP23 Ingress Level Protection
- Naturally cooled via louvers
- Front maintenance – Hinged door for access
- Low fire hazard
- Withstands 30g of shock
- Designed to meet the vibration requirements of DGS 350
- Withstands ship motion due to sea action and weather, accelerations and velocities from deliberate ship manoeuvres
For more information, please contact us.
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