INDUSTRIAL BATTERY CHARGERS & RECTIFIERS: ALS SERIES
Industrial battery charger
They are equipment built according to EN and I EC specifications, correctly applied in relation to the type of battery, either lead, or sealed lead or nickel-cadmium battery. The general characteristic for the stabilized voltage system, both single-phase and three-phase, is a maximum variation of output current and voltage within 1% of the rated value, with mains variations of 15%, or from 0 to 100% of the load, considering an alternate residue of 1%, thanks to the LC filter at the output, all models are equipped with.
It is to be considered as the most complete series, since it provides a stabilized voltage branch for the loads, and a second branch (also stabilized) for the battery with the possibility to be DUAL, therefore, to make them redundant through an automatic «transfer» among themselves in event of failure. In the smaller versions, they may be carried out with self-contained batteries.
GENERAL TECHNICAL CHARACTERISTICS
Input: single-phase or three-phase 230-400 Vca 50-60 Hz ± 10%
1st branch: intended to supply the load at stabilized voltage and maximum current limiting
2nd branch: intended for battery recharging according to the relevant standards, either lead, sealed lead or nickel-cadmium battery
Recharge: it is normally carried out at two levels with ampere metric switch from Full Charge into Float Charge (IU-DIN 41773) For VRLA battery, one level only is provided
Manual Charge: the manual charge is started by a 12-24h timer. At the end of time, the charger switch back into Float Charge
Values: automatically output currents and voltages are in relation to the load and to the type of battery used with ± 1% stabilization
Output: output continuity is ensured by the battery also in case of mains lack without any solution of continuity
Configuration: single-phase, three phase, semi-controlled, total-controlled (6 pulse) or dodeca-phase (12 pulse)
Filters: LC standard filter d.c. side with 5% ripple at output both 1st and 2nd Branch; on request with 1% ripple and/or mains filter at «N» or «G» degree
Optionals: voltmetric relays for the control of battery minimum and/or maximum voltage and/or load voltage, relay for polarity indication to earth (ground), automatic circuit breakers at input and output, output filter for 1% ripple, maximum charging time adjustable from 0 to 14 hours, possibility of insulating completely and galvanically the regulation card from the power circuit, remote signalization of operating conditions and/or alarms through potential free (SPDT) contacts or RS485/Ethernet serial communication with MODBUS/PROFIBUS protocol