Digital rectifiers with forced cooling AC/DC Scr bridge RDC

RDC, the battery charging rectifier, is an energy converter for industrial use designed to ensure a constant power supply in association with the batteries. Using different types of connections and operating criteria, and building on the experience gained in the last 40 years, our partner can fulfil any request while ensuring a high system efficiency.

More details

Applications

Industrial use

Specifications

  • Clean and stable output DC current with ripple voltage peak-peak value <1%.
  • Redundant fan system with temperature and air flow control.
  • 5 automatic charging modes.
  • Manual charging mode.
  • 4 adjustable voltage levels (the rectifier can operate as a power supply at the rated voltage or as a battery charger.
  • Adjustable times and alarm thresholds.
  • Temperature compensation programmable on the charging voltage to prolong the battery life.
  • Digital microprocessor control (DSP + PLD).
  • Full optical isolation on all the logic and interface cards.
  • Low input harmonic distortion with the twelve-phase bridge and the optional input filter.
  • Certified to withstand the harshest environment conditions.
  • Efficiency exceeding 90% (low-frequency transformer included).
  • Modbus communication interface through RS232 or RS485 port.
  • Ethernet connectivity.
  • Optional FALCON battery control system,  “H class” input isolation transformer.

Power supply systems for industrial environments

RDC, the battery charging rectifier, is an energy converter for industrial use designed to ensure a constant power supply in association with the batteries. Using different types of connections and operating criteria, and building on the experience gained in the last 40 years, our partner can fulfil any request while ensuring a high system efficiency. The series of rectifiers and battery chargers for industrial use is based on total control 6- or 12-pulse thyristor bridges. We can supply a wide range of systems with voltage output from 24 V DC to 220 V DC and current output up to 1000 A. The equipment is installed inside stand-alone, self-supporting cabinets. The frame and the panels are made of steel. The protection degree is IP 30 (up to IP42 upon request) and IP 20 when the panels are open; access to the equipment is from the front.
The equipment is designed, manufactured and tested in compliance with the applicable IEC regulations.

Graphical display

The graphical display allows to choose between 4 different charging modes:

  • - Rectifier only
  • - Equalised charging with temperature compensation
  • - Quick charging activation
  • -Manual and battery forming charging

The voltage curves are compliant with the DIN 41773 standard, for an optimum charge allowing to extend the battery life.

Affichage graphique redresseur digital RDC

Parallel solution to increase efficiency and yield

AUNILEC has designed a wide range of parallel solutions to increase the general system MTBF until making it virtually infinite. Thanks to a CAN BUS communication card, in fact, the different rectifiers divide the load into equal shares, and manage a complex function exchange system.Redresseur redondant à une branche et convertisseur redondant DC/DC

Redundant single-branch rectifier with redundant DC/DC converters

The single-branch redundancy allows to keep the load and the battery powered by two parallel digital rectifiers, that by dividing the currents reduce the strain of each rectifier. The load, requiring a voltage level lower than that of the batteries, is powered through a redundant DC/DC converter.
In case of failure, the other rectifier will take on the whole load.

Double-branch rectifier with AUNILEC “EES” (Emergency Exchange System)

The equipment includes two AC/DC conversion units, that when power is supplied by the mains operate independently. During normal operation, when power is supplied by the mains, the two converters run independently. The rectifier will charge the battery, while the system branch supplies the load with a stabilised voltage with a tolerance of ± 1%. A total mains blackout or the failure of both rectifiers will automatically trigger a sequence that supplies the direct load connection to the battery.
In case of failure of one of the two branches, the other automatically starts supplying power to the load while charging the battery at a voltage equal to 110% of the rated voltage (adjustable value). Once the mains power supply is restored, the system will automatically resume operation, and each converter will return to its normal operation mode.

ModelOutput voltageOutput current
RDC 24/10024Vdc100A
RDC 24/12024Vdc120A
RDC 24/15024Vdc150A
RDC 24/20024Vdc200A
RDC 24/25024Vdc250A
RDC 24/30024Vdc300A
RDC 24/40024Vdc400A
RDC 24/50024Vdc500A
RDC 24/60024Vdc600A
RDC 24/80024Vdc800A
RDC 24/100024Vdc1000A
RDC 48/6048Vdc60A
RDC 48/8048Vdc80A
RDC 48/10048Vdc100A
RDC 48/12048Vdc120A
RDC 48/15048Vdc150A
RDC 48/20048Vdc200A
RDC 48/25048Vdc250A
RDC 48/30048Vdc300A
RDC 48/40048Vdc400A
RDC 48/50048Vdc500A
RDC 48/60048Vdc600A
RDC 48/80048Vdc800A
RDC 48/100048Vdc1000A
RDC 110/60110Vdc (opt.125Vdc)60A
RDC 110/80110Vdc (opt.125Vdc)80A
RDC 110/100110Vdc (opt.125Vdc)100A
RDC 110/120110Vdc (opt.125Vdc)120A
RDC 110/150110Vdc (opt.125Vdc)150A
RDC 110/200110Vdc (opt.125Vdc)200A
RDC 110/250110Vdc (opt.125Vdc)250A
RDC 110/300110Vdc (opt.125Vdc)300A
RDC 110/400110Vdc (opt.125Vdc)400A
RDC 110/500110Vdc (opt.125Vdc)500A
RDC 110/600110Vdc (opt.125Vdc)600A
RDC 110/800110Vdc (opt.125Vdc)800A
RDC 110/1000110Vdc (opt.125Vdc)1000A
RDC 220/25220Vdc25A
RDC 220/40220Vdc40A
RDC 220/60220Vdc60A
RDC 220/80220Vdc80A
RDC 220/100220Vdc100A
RDC 220/120220Vdc120A
RDC 220/150220Vdc150A
RDC 220/200220Vdc200A
RDC 220/250220Vdc250A
RDC 220/300220Vdc300A
RDC 220/400220Vdc400A
RDC 220/500220Vdc500A
RDC 220/600220Vdc600A
RDC 220/800220Vdc800A
RDC 220/1000220Vdc1000A

• Other technical characteristics
Input frequency50/60Hz
Frequency range+/-10%
Input voltage400Vac 3PH
Input voltage range+/-10%
Input THD27% avec 6PH, 12% avec 12P, 6% avec 12PH + filtre THD
Output voltage4 niveaux (redresseur seul, niveau de charge 1,2,3)
"Soft" startde 0 à 100% en 10 secondes
Dynamic stability+/- 10%, 1% en 200ms
Temperature compensation0/-0,3V/°C
Ripple<1%
• Communications
Remote signalingcontacts secs libre de potentiel
Communicationprotocole MODBUS par le port série RS485 DB9, TCP/IP
• Environment
Cabinet coolingNaturel
Operating conditions-5/+40°C, 93% d'humidité (sans condensation)
Noisede 53 à 58 dB dépendant de la taille
• Mechanics
Metal frame thickness2,5mm
Metal door thickness1,5mm
Frame surfaceacier galvanisé
Protection degree with closed doorIP30
Protection degree with open panelsIP20
External colorRAL 7035
Cable entryPar le bas, par le haut ou du côté

Main optional components

  • Additional RFI filters
  • Additional THD filters
  • 12-pulse bridge
  • Battery monitoring unit
  • DC/DC stabiliser
  • Parallel active load distribution
  • Special colors
  • Special protection degree
  • Otput distribution panel