Float Cum Boost Chargers (FCBC)
Two-in-one float and boost charger for electrical substations.
Overview
As the name indicates, FCBC is a two-in-one functional combination of a float charger and a boost charger. Under normal condition FCBC works as a float charger. When the mains fail, the battery takes over supply to the load. On resumption of power, FCBC switches to the “boost mode,” boost charges the discharged battery and returns to the “float mode” after the battery is restored to full charge. All along, it supplies uninterrupted DC power to the load.
Applications
Advantages
Key Features
A second module stands ready to take over automatically if the primary module faults, so DC supply to the substation load is not interrupted by a single module failure.
Both modules share load current in proportion while operating together, preventing one module from being overworked relative to the other.
Technical Specifications
Generic
- FCBC type
- SCR based
- Hot standby module for redundancy
- Yes
- Suitable for charging of
- Electrical substation
- Installation
- No
- Warranty
- 1 year
Input
- Voltage
- 230V +/-10%, 1 Phase AC
- Frequency
- 50 Hz +/-5%
- Power factor (50%–100% load), max
- 0.75
- Efficiency
- >= 85%
- Dielectric strength
- 2.0 KV AC (wound components only)
Output
- Nominal voltage
- 110V DC
- Output rating
- 120/200 A
- Float voltage
- 123.75V DC
- Boost voltage
- 132V DC
- Net regulation
- +/- 1%
- Ripple factor
- <= 1%
- Battery current limit
- 120/320 Ah of battery
Protection
- AC input circuit breaker
- Yes
- DC output circuit breaker
- Yes
- DC over voltage protection
- Yes
- Battery input fuses
- Yes
- Charger overload
- Yes
- Battery charging current limit
- Yes
- Short circuit protection
- Yes
- Fuse capacity
- 40 Amps HRC fuse
Construction
- Modular, upgradable hot plug-in modules
- Yes, for SCR-based FCBC
- Cabinet material
- CRC sheet, duly powder coated case
- Active current sharing facility
- Yes, for redundancy system
- Input high voltage disconnect
- Yes
- Battery low voltage disconnect
- Yes, provided
- Display
- Analog
- Common O/P voltage controller
- Yes, provided
- Battery current limiting per battery path
- Yes
- Operating temperature
- 0°C to 50°C
- Storage temperature
- -10°C to +70°C
- Cooling type
- Convection
- Humidity
- < 95%
Features
- Hot standby 1+1 configuration
- Yes
Alarms & Indications
- Audible alarm on low battery bank voltage
- Yes
- Input on
- Yes
- Charger on Float / Charger on Boost
- Yes
- DC over voltage
- Yes
- DC under voltage
- Yes
- AC supply fail
- Yes
- Charger fail
- Yes
- Rectifier fuse fail
- Yes, for thyristor type
- Battery fuse blown / battery isolated
- Yes
- Load on battery
- Yes
- Battery discharging
- Yes
- Bright LED / multi-point facia indication
- Yes
IGBT-Controlled Variant (Available on Demand)
- 12V battery
- Float 13.5V DC · Boost 14.4V DC · Current: Customizable range
- 24V battery
- Float 27V DC · Boost 28.8V DC · Current: Customizable range
- 48V battery
- Float 54V DC · Boost 57.6V DC · Current: Customizable range
- 110V battery
- Float 123.75V DC · Boost 132V DC · Current: Customizable range
CV-CC Controlled Variant (Available on Demand)
- 12V battery
- Charging voltage 0–15V DC · Current: Customizable range
- 24V battery
- Charging voltage 0–30V DC · Current: Customizable range
- 48V battery
- Charging voltage 0–60V DC · Current: Customizable range
- 110V battery
- Charging voltage 0–150V DC · Current: Customizable range
- 180V battery
- Charging voltage 0–220V DC · Current: Customizable range
Frequently Asked Questions
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