Battery Charger 50Hz Three-Phase

The battery chargers of the Revolution series are designed to recharge medium – large capacity traction and start lead-acid batteries.

These battery chargers are the result of the fourty-year experience in the field of battery chargers, in the application of microprocessor control systems which constanly monitorize the basic parameters that assure a correct operation and therefore safeguard the battery’s life.

  • Charge at decreasing current with intervention of the final charge at 2.40 V/cell.
  • Final charge with timed control 9h / 11h.
  • Fixed charging time (equalization charge excluded).
  • Equalization charge (week-end charge) to be recalled. It will start after 55’ from charge end.
  • Duration of equalized charging phase: each hour 5’ (repeated for 48 hours).
  • Calculation to determine the size of suitable battery charge: 16A for every 100 Ah of the battery (e.g. 500 Ah battery: 16Ax5 = 80A).

Technical Characteristics

3x400V three-phase supply (single-phase available) – adjustable ± 5% with possibility to request voltage different from the standard ones.
Microprocessor-controlled programming and measuring via digital gearcase. Such microprocessor control is designed to optimize the charging cycles for any type of battery.
220V coil three-pole contactor.
D.C. fuse on rectifier output.
Three-phase rectifier bridge with silicon diodes, natural cooling, with snubber protection.
Short check of functions and times.
Option to program the equalized charge automatically to be required when ordering.
Lab-tested electronic circuit conforming to the directive on electomagnetic compatibility and CE marking.
Equalization charge based on time.
Charging with decreasing current (Wa charging curve): 9÷11 h charging time.
Transformer thermal protection.
Installation on galvanized steel base.
Sheet steel case with modular panels.
Epoxy powder coating, oven-baked.
Custom-made colour.
Custom-made logo and silk-screen printing.
Standard colour: RAL 2004 orange.
Mains input and d.c. output polarized cables.
Complete with mains cables; battery cables, assembly of plugs and battery connectors on request.

“Wa” characteristic
(din 41774)

The charging curve of this model is the Wa (decreasing current charge) is compliant with DIN 41774.

The Wa charging curve, is features by a downward trend of the charging current when the battery voltage increases, therefore it takes constant power.

To obtain a suitable charge of the battery, the charger must be able to provide a charging curve as faithful as possible to the theoretical charging curve, which provides an initial charging current equal to 16% of the battery capacity, and a declining trend. With this kind of charger with standard curve Wa (DIN 41774), it is necessary to determine the charging current required, by calculating the 16% in ampere hours (Ah) of the capacity of the battery (for example: for a 600Ah battery, using a charger with 100A).