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Energy Solutions can help you reduce your electricity bills
Commercial Enquiry :
+919373336340 | +919822407189
sales@enertechups.com
Customer Care & Support: +919373679255 support@enertechups.com
Careers: +919075088292 recruitment@enertechups.com
An Industrial Float-cum-Boost Battery Charger (FCBC) is essential because it simultaneously powers continuous station DC loads while keeping backup batteries at 100% readiness without overcharging. In the event of a grid outage, it ensures a seamless 0 ms handover to the battery bank, preventing costly downtime and protecting critical protection relays, circuit breakers, and SCADA systems.
| Feature | Specification |
|---|---|
| DC output range | 24V / 48V / 110V / 220V / 360V — up to 800A |
| Configuration | FCBC | Dual FCBC | Float + FCBC |
| Input supply | 1-Phase 230V AC or 3-Phase 415V AC, 50Hz |
| Phase | 1Ph–1Ph | 3Ph–3Ph |
| Converter technology | 3-phase 6-pulse thyristor (SCR) | single-phase half-controlled SCR | 2-switch forward SMPS / IGBT |
| Battery types supported | Lithium-Ion, Lead-Acid, VRLA, Ni-Cd |
| Control | 40-pin microcontroller — auto float/boost selection, charge start/stop, fault sensing & alarm annunciation |
Uninterrupted Station DC Power: Industrial Float-cum-Boost Battery Chargers (FCBC)
In high-voltage substations, power generation plants, refineries, and heavy manufacturing hubs, uninterrupted DC power is vital for operational safety. Circuit breaker trip coils, protective relay networks, emergency lube oil pumps, and SCADA telemetry rely entirely on a stable DC bus. An Industrial FCBC Battery Charger serves as the backbone of this ecosystem, simultaneously feeding continuous DC power to connected station loads while keeping the battery bank fully charged and healthy.
Understanding FCBC Dual Operating Modes
An industrial FCBC operates continuously across two primary modes to maximize battery life and ensure zero interruption to downstream operations:
Float Mode (Normal Grid Supply): The charger powers 100% of the standing continuous DC load while supplying a gentle trickle charge (float current) to the battery bank to compensate for natural self-discharge and keep it at peak readiness.
Boost Mode (Post-Outage Fast Recharge): Following a deep outage or heavy load demand, the charger switches to boost mode to deliver regulated high-current charging, restoring full battery capacity quickly before returning automatically to float mode.
Mains-Failure Dynamic Handover: If utility AC input drops, the battery instantly supports the DC bus without any switching delay ($0\text{ ms}$ transfer time), preventing false trips or relay dropouts.
The battery is always in circuit, so a mains failure causes no interruption to the load. Ideal for protection, control and signalling circuits.
A high-end microcontroller selects modes, starts and stops charging, and prevents both deep discharge and overcharge — extending battery life and removing manual intervention.
From a single charger to fully duplicated dual-FCBC systems with automatic change-over and alarm, so availability scales to your criticality.
Pluggable PCBs, on-board test points and a comprehensive O&M manual with troubleshooting charts make servicing quick and predictable.
Full-wave fully-controlled rectification plus a dedicated P&I controller deliver stable, low-ripple output that protects sensitive electronics and instrumentation.
Overcurrent, overvoltage, short-circuit, phase-failure and phase-sequence-reversal protection guard both the charger and the connected battery bank.
Industrial enclosures up to IP65, transformer isolation and temperature-controlled cooling keep the system thermally stable in demanding environments.
Backed by EnerTech's 35-year manufacturing track record and pan-India service network.
| Feature | Specification |
|---|---|
| Regulation | Full-wave fully-controlled rectifier for low inherent ripple; separate analogue P&I controller for transient response |
| Isolation | Transformer-based for complete galvanic isolation |
| Protection | Overcurrent, overvoltage, short circuit, deep-discharge, phase-fail & phase-sequence reversal |
| Cooling | Natural air cooled with provision for temperature-controlled forced-fan cooling |
| Display | LCD / LED with monitoring and diagnostics; PCB test points for fast troubleshooting |
| Enclosure | Industrial-grade, IP20 to IP65 (customisable) |
| Serviceability | Pluggable PCB / edge connectors for rapid module replacement |
| Warranty | Standard manufacturer warranty with pan-India service network |
EnerTech FCBC systems power critical DC loads across multiple industries requiring uninterrupted DC supply.
Thermal, hydro & solar power stations
Electrical substations & switchyards
Steel, cement & process plants
Petrochemical, oil & gas, and refineries
Telecom & signalling installations
Railways & metro infrastructure
Hospitals & healthcare facilities
Data centres & IT infrastructure
Educational & research institutions
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An FCBC is an industrial DC charger that simultaneously powers a critical load and keeps a standby battery fully charged. In normal operation it "floats" the battery; after a discharge it "boosts" the battery back to full charge — all automatically — providing uninterrupted DC power.
Float charging maintains a fully-charged battery at a steady low voltage to offset self-discharge during normal running. Boost charging applies a higher voltage to recharge a depleted battery quickly after a power outage, before the charger reverts to float mode.
Yes. Because the battery is permanently connected across the DC bus, the load is fed by the battery the instant mains fails — with zero changeover time and no voltage interruption.
EnerTech manufactures FCBC systems from 24V to 360V DC, with output current up to 800A, in single-phase (230V) and three-phase (415V) input versions. Ratings are customisable to your project.
The charger supports Lithium-Ion, Lead-Acid, VRLA and Ni-Cd battery banks, with charging parameters configured to the battery type.
Yes. EnerTech offers 100% redundant dual-FCBC systems with automatic change-over and alarm, as well as parallel-operation and dual-battery-bank configurations for the highest availability requirements.
A microcontroller automatically manages float/boost selection and charge start/stop, preventing both deep discharge and overcharging — the two main causes of premature battery failure. Built-in overcurrent, overvoltage and short-circuit protection safeguard the system.
They are deployed in power stations, substations, steel and cement plants, petrochemical and oil & gas facilities, telecom and railway signalling, hospitals, data centres and any application needing reliable, uninterrupted DC power.
