Battery Chargers and Rectifiers

Product Description :
Battery Chargers:
Secondary cells once exhausted, need to be charged by DC source having a voltage current characteristics to match the one specified by the battery manufactures. The mains supply voltage is stepped down and rectified by using a bridge connected rectifier to produce the desired output for charging the batteries. Output is adjustable within a limited range either in small steps, using one or more rotary switches or smoothly, using a VARIPAC - continuously variable voltage auto transformer. DC output is electrically isolated form AC input.
Specifications:
Battery chargers are designed and made to customer's individual specifications which vary widely. Broad specifications which cover most of the application are:

• Input: 240 V, 1 phase or 415 V, 3 phase, 50 Hz AC
• Output: Upto 300 V DC
• Capacity: Upto 400 Amps.
  

Rectifiers:
These are low voltage high current DC power supplies, mostly working on 3 phase AC input. In exceptional cases, input can be single phase also.
Specifications:Input: 415 V 3 phase 50 Hz AC + /- 10 % ( 240 V, 1 phase in exceptional cases)

• Output : Variable steplessly or in small steps from zero to any value up to 50 V CS.
• Capacity: Up to 10,000 Amps.
  

Ripple Content:
This is an important characteristic for many electrochemical processes. High ripple content adversely affects the performance of the process. Ripple is an AC component in DC output which is around 48 % in units working on 1 Phase supply and 5 % for units working on 3 phase supply. Using a proper circuit configuration ripple can be reduced to 1 % without using any filters to reduce the ripple further.