Air Circuit Breakers (ACBs) are
essential components in Bangladesh's electrical infrastructure, particularly
for managing and protecting high-current circuits in industrial, commercial,
and large-scale power distribution systems. As Bangladesh continues its rapid
economic and industrial growth, the demand for reliable and robust electrical
protection devices like ACBs remains high.
Key Brands and Availability in
Bangladesh:
The Bangladeshi market for ACBs
features a strong presence of international manufacturers known for their
quality and compliance with global standards. Some of the most commonly
available and reputable brands include:
- ABB:
- Schneider Electric
- Siemens
- LS Electric (formerly LG Industrial Systems
- Chint, Terasaki, Havells, L&T, GE
These ACBs are supplied through authorized distributors and
dealers across Bangladesh, particularly concentrated in major industrial and
commercial hubs like Dhaka and Chittagong. Online platforms also list various
models and brands, though for large-scale industrial procurement, direct
engagement with distributors is common.
Typical Applications in
Bangladesh:
ACBs are critical in Bangladesh
for:
- Industrial Facilities: Providing main incoming
and feeder protection for heavy machinery, large motors, transformers, and
critical process equipment in manufacturing sectors like textiles,
garments, pharmaceuticals, and food processing.
- Commercial Buildings: Serving as primary
circuit breakers in the main distribution boards of large structures such
as high-rise office buildings, shopping malls, hotels, and hospitals.
- Data Centers: Essential for ensuring
uninterrupted power supply and protecting sensitive IT infrastructure,
vital for the country's growing digital economy.
- Power Generation and Distribution: Utilized in
substations, power plants (including captive power plants), and major
distribution boards to protect high-current circuits.
- Infrastructure Projects: Deployed in large
construction projects, transportation hubs, and public utilities.
- Renewable Energy Projects: Increasingly
integrated into large-scale solar power plants and other renewable energy
installations for protection and control.
- Safety: Guarantees that the breakers will
operate safely under fault conditions, protecting both personnel and
equipment.
- Performance: Ensures that ACBs meet specified
current ratings, breaking capacities (kA), and operational endurance.
- Interchangeability and Compatibility:
Facilitates easier integration into existing systems and sourcing of
replacements.
Local regulations and practices,
often guided by bodies like the Bangladesh Power Development Board (BPDB), also
influence specific requirements for electrical equipment. When procuring ACBs
in Bangladesh, key considerations for buyers and specifiers include:
- Current Rating (In): Matching the maximum
continuous current of the circuit.
- Breaking Capacity (Icu/Ics): Ensuring it can
safely interrupt the maximum potential fault current in the system.
- Voltage Rating: Compatibility with the system
voltage (e.g., 400V, 415V).
- Number of Poles: Typically 3-pole or 4-pole
configurations depending on the system's neutral protection requirements.
- Trip Unit Type: Modern electronic trip units
offer superior accuracy, adjustability, and advanced protection functions
(e.g., overload, short-circuit, ground fault, measurement).
- Fixed or Draw-out Version: Draw-out versions
offer easier and safer maintenance.
- Communication Capabilities: For integration
into smart grid and energy management systems.
- Supplier Reputation and After-Sales Support:
Crucial for genuine products, technical assistance, and warranty claims
within the local market.
-
The continuous growth in
Bangladesh's industrial and commercial sectors underpins the robust demand for
high-performance and reliable Air Circuit Breakers to maintain safe and
efficient electrical power distribution.
