Float cum Boost Charger  Technical Spicification

Input Voltage      Single phase, 240V or Three phase 415V

Frequency           50Hz. +/-5%

Input voltage      +/-10%
variation

Battery voltage    24/30/48/110/220V DC

Float voltage       Normally 2.0 to 2.3V per cell [steplessly adjustable], 
                         [nominal cell voltage considered 2.0V]

Boost charge       Will depend upon type of battery
voltage

Rectifier              Fully wave half control in 1 phase thyristor bridge or Full
configuration       wave fully control in 3 phase thyristor bridge

Control mode      Constant voltage, current limiting in float charging.
                         Constant current/voltage in boost charging. 

Voltage regulation +/- 1%

Current regulation  +/-2%

Ripple voltage        1-3% RMS (normally)

Protection             

• Electronic trip against input phase fail/sequence reversal
• Gate pulse inhibit against AC under voltage
• High speed semiconductor fuse at rectifier input
• HRC fuse at output and filter circuit
• Surge supressor network at Transformer secondary
• Snubber across each semiconductor device
• Soft start with current limiting circuitry against over load and short circuit

Annunciation          Audio-visual annunciation is possible against fault (optional)

Commencement &  Automatic by sensing battery voltage/current or by Timer
Termination of
Charging

Cooling                   Air natural or forced cooling