Battery Charger
Product Specifications & Details
The Automatic Float Cum Boost Battery Charger manufactured by General Auto Electric Corporation (GAEC) is engineered specifically for severe environments across the Indian Railways network. Built in compliance with RDSO Specification No. IRS:S:86/2000, it maintains power for critical Railway Signaling and Telecom installations—including Relays, Point Machines, Data Loggers, Axle Counters, and Control Circuits. The unit operates automatically based on battery condition, seamlessly switching between Auto Float and Auto Boost modes, while featuring a dedicated manual override powered by a separate Bridge Rectifier for zero-downtime reliability.
Key System Features
- Automatic Operation: Dynamic Float/Boost switching based on battery charge state.
- Manual Fallback: Independent Bridge Rectifier for manual override.
- High Reliability: Includes spare Control Card to minimize maintenance downtime.
- Rugged Build: Custom-designed for harsh ambient conditions in Indian Railways.
- Cell Boosting: Facility to charge up to 2 extra cells (2V each) above nominal.
- Fault Alarms: Potential-free contacts integrated for LOW DC output alert.
- Comprehensive Protection: Protected against Overload, Short Circuit, and Reverse Battery.
- RDSO Approved: Certified for Railway S&T installations nationwide.
Technical Specifications Table
| Parameter | Specification Standard |
|---|---|
| Nominal Input | 230V AC, Single Phase |
| Input Variation Range | 160V to 270V AC |
| Nominal Output Voltage | 12V, 24V, 48V, 60V, 110V DC |
| Rated Current Capacity | 5A to 80A |
| Ripple Content | • < 5% rms for Signalling • < 2 mV Psophometric for Telecom • < 50mV pk-pk & 10mV rms for Axle Counter |
| No Load Current | < 10% of Rated Input Current |
| Efficiency & Power Factor | > 75% Efficiency | Power Factor > 0.7 at rated input |
| DC Regulation | ± 0.05 Volt per cell |
| Isolation & Insulation | Isolation: 2 kV rms | Insulation: >10 MΩ (Unit), >1000 MΩ (Transformer) |
| Operating Temp / Class | 0 to 55 °C, 90% RH (Non Condensing) | Insulation Class B |
System Controls & Switches
Main ON/OFF switch, Auto/Manual switch, Manual Voltage selector switch, Voltage Control (2.12 – 2.3 V/Cell), Current Control (25 – 102%), and Cell Selector Switch.
Built-in Protections
HRC fuses at input & output, Reverse Battery Connection protection, Overload protection, Short Circuit protection, plus HRC fuses for Rectifiers & Capacitors (units ≥ 50A).
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