Battery Charger are generally air cooled type portable & designed for dusty & humid climate at site Railway Station, outdoor installation etc. Main transformer of the chargers are wound with copper wire /Strips.
CRGO core is used for magnetic circuit of the chargers. The charger mainly consist of Input ‘ON ‘OFF Switch, Input Fuse, Input ON Indicator, Rotary Switches with regulating transformer with main step up/step down transformer, silicon diode, rectification from AC-DC Ballast choke & output terminal. The output supply consist of surge separation circuit and whole storage condenser.