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STATIONARY BATTERY CHARGERS

 RCB Series, From 12 To 220 Vcc, Of 10 Amp Up to 400 Amp

FOR ACID OR ALKALINE BATTERIES, OPENED OR SEALED

  

The ADI brand battery charger equipments series RCB, provide voltage with rectified output of CC, for the recharge of a bank of batteries and a simultaneous supply of a determined consumption, which requires a safe energy source for its correct operation.

The charging equipment base their operation on the control phase of the tiristores that compose the rectifying bridge, for which is necessary to modify the conduction angle of the tiristores..

The instantaneous value of this angle of conduction, is determined by a system of implemented digital control by means of the use of a microprocessor.

The use of this technique allows to conceive an equipment of excellent benefits and discharge reliability for  use in the heavy industry, and where a source of reliable CC is required.

The digital control system has three proportional controllers: one for the control of the output voltage, whose value will depend on the type of load curve of the battery selected, a second controller for the total output current of the rectifier, and a third controller for the current to the battery.

In this way, anyone of them can take control from the rectifying bridge, modifying the voltage or output current, according to the controller that is operating.

The output in any of these three controllers is applied in cascade to one last controller of type proportional + integral (P + I), whose value of output relates to the conduction angle of the tiristores.

 

THE USE OF A SYSTEM OF DIGITAL CONTROL HAS THE FOLLOWING ADVANTAGES:

- It divides the angle of conduction of the tiristores in 11000 parts, assuring  the voltage of output in + / - 1 %, due to variations of load of 100 %

- Limits the total current of output and towards the battery in independent form within the mentioned tolerances. .

- It selects different load curves from batteries, whose characteristics are stored in the memory of the control system (EPROM).

- Modifies the constants of the control system visualizing its value in the display of the front panel

- It modifies the different values from adjustment of the rectifier (voltage of flotation or bottom, Maximum battery or output current, etc.), with no need to stop the operation, observinng this in display of the frontal panel.

- Uses digital display to be able to make up to 10 measurements in sequential form such as:

   voltage of output, output current, battery power, time of load, etc.

- Modifies the type of load curve of the battery provided as standard, by another one according to specification of    the manufacturer, only by changing the program (software) of the control system.

- Makes the remote supervision of one or several equipments, through a communication port   series type RS-232, that allows to send, by means of a modem with some system of communications (telephony, radio, satellite, etc.), to a PC, the values of the different measurements that makes the equipment, the different status from operation and the status of the alarms.

 

The ADI charging equipment of series RCB are made as standard for voltages of monophase feeding of 220 V - 50 Hertz and triphase of 3 x 380 V - 50 Hertz

The rectifying bridge can be semicontrolled (3 tiristores and 3 diodes), or totally controlled (6 tiristores).

According to the requirements of the consumptions, the equipment will be able to have different ways of execution:

 

Individual

A single equipment feeds the consumption and recharges the battery

Parallel

Stand - By

Two equipments, one in operation and the other in stand-by carrying out the same function, at a failure of the first, the second initiates the supply of the consumption.

 

Parallel with

distribution of current

Connection of several equipments in parallel, from 2 (dual), to 8 equipments, with distribution of the current in balanced form, also suppling the consumption and recharging  of batteries

 

Average battery type

Two equipments loading its respective batteries and suppling the consumptions in parallel without distribution of the current, recharges the batteries in alternate form

 

THE MAIN USES OF ADI CHARGERS ARE:

  

- Supply of the protection systems of generating plants and transformer stations of electrical energy

- Supply of the control systems and the reliability of them in plants of  continuous process, such as:

  petrochemical petroleum refineries, plants, compressing gas plants, etc.

- Supply of communications telephone type systems, satelite  radio links of microwaves, or communications.