Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | ABB 73BHE055094R0002 GBU72 |
| Manufacturer | ABB |
| Product Category | Grid Feeding Unit (Regenerative Rectifier) |
| Input Voltage | 3-Phase 380-500V AC (±10%) |
| DC Link Voltage | 510-720 V DC |
| Rated Power | 72 kW (Continuous) |
| Peak Current | 180 A (2 seconds) |
| Efficiency | >98% (at full load) |
| Switching Technology | IGBT-based PWM Control |
| Protection Features | Overvoltage, Undervoltage, Overcurrent, Short-Circuit, Overtemperature |
| Communication Interface | Fiber-optic link to drive controller |
| Cooling Method | Forced air (Integrated fans) |
| Operating Temperature | -15°C to +50°C (Derating above +40°C) |
| Enclosure Rating | IP20 (Standard) / IP54 (Optional) |
| Weight | 18.5 kg |
| Compliance | CE, UL, cUL, IEC 61800-5-1 |
ABB GBU72 3BHE055094R0002
Product Introduction
The ABB 73BHE055094R0002 GBU72 is a high-efficiency regenerative rectifier module designed for ABB’s ACS880 industrial drive systems. As part of the Grid Feeding Unit (GBU) series, this unit enables bidirectional power flow, converting braking energy from motors back into the grid with minimal harmonic distortion. It plays a critical role in energy-intensive applications where frequent deceleration generates significant recoverable power.
Engineered for seamless integration with ACS880 multidrive cabinets, the ABB 73BHE055094R0002 GBU72 eliminates the need for traditional braking resistors, reducing installation costs and facility temperatures. Its IGBT-based topology ensures precise control of DC link voltage while maintaining near-unity power factor (>0.98). The module operates in tandem with ABB’s drive control platform, providing real-time energy regeneration data for operational analytics.
For industries pursuing sustainability goals, the ABB 73BHE055094R0002 GBU72 transforms kinetic energy into reusable electricity, achieving up to 40% energy savings in applications with high cyclic loads. Its compact design and plug-and-play connectivity simplify retrofits in existing drive systems.
Core Advantages and Technical Highlights
Regenerative Energy Recovery: Unlike conventional drives that dissipate braking energy as heat, the ABB 73BHE055094R0002 GBU72 feeds 72 kW of clean power back to the grid with THDi <4%, reducing energy costs and cooling requirements.
Ultra-High Efficiency: Silicon carbide (SiC) hybrid IGBTs minimize switching losses, achieving peak efficiency of 98.5% even at partial loads. This translates to >€15,000/year savings in a typical crane application.
Seamless Drive Integration: Fiber-optic synchronization with ACS880 drives enables automatic mode switching between motoring/regeneration in <2ms, preventing DC link overvoltage during abrupt stops.
Active Front-End Performance: Maintains grid voltage stability with <3% voltage distortion under worst-case loads. Includes built-in harmonic filtering meeting IEEE 519 standards.
Robust Protection Suite: Multi-stage fault management includes:
DC bus pre-charge control to prevent inrush currents
Grid loss ride-through (up to 20ms)
Asymmetrical fault current limitation
IGBT junction temperature monitoring
Thermal Resilience: Patented asymmetric cooling design ensures even heat distribution. Fan speed modulation extends component life at partial loads.
Typical Application Scenarios
Overhead Cranes & Hoists: In steel mills and ports, the ABB 73BHE055094R0002 GBU72 captures up to 70% of lowering energy in container handling. Prevents DC bus overvoltage during emergency stops.
Centrifuges & Test Rigs: For pharmaceutical separation and automotive dynos, regenerates kinetic energy during spin-down cycles. Enables precise speed control without external resistors.
Mining Conveyors: On downhill conveyors transporting ore, the ABB 73BHE055094R0002 GBU72 converts gravitational energy into grid power, reducing substation loading in remote sites.
Plastic Extruders: Recovers energy during screw deceleration in injection molding, maintaining stable DC bus voltage during frequent start/stop cycles.
Pump/Fan Drives: In water treatment plants, captures energy during pressure reduction valve adjustments, complementing VFD savings with regenerative gains.
ABB GBU72 3BHE055094R0002
Related Model Recommendations
ABB 73BHE010004R0001 GBU10: 10kW regenerative unit for small-axis applications (e.g., auxiliary conveyors).
ABB 73BHE045099R0002 GBU45: 45kW mid-range module for medium motors.
ABB 73BHE110080R0001 GBU110: 110kW unit for large hoists/centrifuges.
ABB 3AXD50000029820 ACS880-07 Drive: Matching cabinet drive for GBU72 integration.
ABB 3AUA0000090393 DC Link Choke: Essential for harmonic suppression with GBU72.
ABB 1TGE120010R2100 Cooling Fan Kit: Redundant cooling upgrade for high-ambient sites.
ABB 3BHE039203R0101 Control Panel: Local HMI for regeneration monitoring.
ABB 3ASC25H204 DCLT Module: DC link voltage transducer for protection coordination.
Installation, Commissioning and Maintenance Instructions
Installation Preparation: Mount vertically with ≥100mm top/bottom clearance for airflow. Verify grid symmetry (<2% phase imbalance) and impedance (<4% at 72kW). Use copper busbars (min. 50mm²) for DC link connections. Ground impedance must be <0.1Ω.
Commissioning:
Perform insulation resistance test (>5MΩ at 1000VDC)
Validate fiber-optic link integrity via DriveWindow tool
Configure grid parameters (nominal voltage/frequency)
Test regeneration via controlled motor deceleration
Maintenance:
Quarterly: Clean air filters, check terminal torque (15Nm ±10%)
Annually: Measure DC bus ripple (<3% of Vdc), verify fan operation
Biannually: Thermal imaging of IGBT modules
Replace electrolytic capacitors every 7 years
Service and Guarantee Commitment
ABB provides a 24-month warranty on the ABB 73BHE055094R0002 GBU72, extendable to 5 years with registered maintenance contracts. Global technical support includes:
8-hour critical failure response for process industries
Free firmware upgrades via DriveCare portal
Lifetime repair services (including obsolete component re-manufacturing)
Energy savings audit by ABB Solution Engineers
All units undergo full-load burn-in testing and harmonic validation per EN 61000-3-12. Cybersecurity patches for embedded controllers are issued quarterly.
