Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | ABB GDB021BE05 HIEE300766R0005 |
| Manufacturer | ABB |
| Product Category | Numerical Protection Relay |
| Series | REG670 Generator Protection |
| Protection Functions | 27/59, 40, 46, 50/51, 64G, 78, 81O/U |
| Input Voltage | 48-250V DC / 100-240V AC |
| Current Inputs | 5A or 1A (configurable) |
| Communication | IEC 61850, Modbus, PROFIBUS |
| Sampling Rate | 64 samples/cycle |
| Operating Temp | -25°C to +55°C |
| Housing | IP40 (front panel IP54) |
| Dimensions | 177 × 190 × 150 mm |
| Weight | 3.5 kg |
GDB021BE05 HIEE300766R0005
Product Introduction
The ABB GDB021BE05 HIEE300766R0005 represents ABB’s cutting-edge solution for generator protection, offering comprehensive security for power generation assets. As part of the REG670 series, this numerical relay integrates multiple protection functions into a single, robust device designed for critical power generation applications.
Engineered for maximum reliability, the GDB021BE05 provides complete generator protection including differential protection (87G), stator earth fault protection (64G), and loss-of-excitation protection (40). Its advanced algorithms and 64 samples/cycle sampling rate ensure precise fault detection and rapid response times, significantly reducing equipment damage during electrical faults. The ABB GDB021BE05 HIEE300766R0005 supports modern IEC 61850 communication protocols, enabling seamless integration into digital substation architectures while maintaining backward compatibility with conventional systems.
Core Advantages and Technical Highlights
Comprehensive protection suite:
The ABB GDB021BE05 offers 27+ protection elements covering all generator fault scenarios. The relay’s adaptive protection algorithms automatically adjust settings based on operational conditions, ensuring optimal protection during startup, synchronization, and full-load operation. The integrated thermal overload protection continuously monitors stator and rotor temperatures using advanced thermal models.
Measurement precision:
With ±0.2% voltage and ±0.5% current measurement accuracy, the GDB021BE05 delivers exceptional metering-class performance. The device provides comprehensive power quality analysis including harmonic distortion monitoring up to the 25th harmonic and voltage flicker measurement compliant with IEC 61000-4-15.
Communication capabilities:
The relay features dual Ethernet ports supporting IEC 61850 Ed.2 with GOOSE messaging for fast protection schemes. The ABB GDB021BE05 also supports legacy protocols including Modbus RTU/TCP and PROFIBUS DP, ensuring compatibility with existing automation systems.
User interface:
The large 5.7″ graphical LCD display provides intuitive access to relay information. The front panel includes dedicated LED indicators for critical alarms and protection functions. The GDB021BE05 supports remote access via web interface for convenient monitoring and configuration.
Typical Application Scenarios
Utility-scale power generation:
In combined-cycle power plants, the ABB GDB021BE05 protects gas and steam turbine generators against stator faults, rotor faults, and abnormal operating conditions. The relay’s synchrocheck function (25) ensures safe generator synchronization to the grid.
Industrial cogeneration:
Manufacturing facilities utilize the GDB021BE05 to protect backup generators during grid outages. The relay’s reverse power protection (32) prevents motoring while the voltage-controlled overcurrent function (51V) provides reliable short-circuit protection.
Renewable energy integration:
The ABB GDB021BE05 safeguards synchronous condensers in solar farms, providing voltage regulation and reactive power support. The relay’s underfrequency protection (81U) helps maintain grid stability during contingency events.
Marine power systems:
On offshore platforms, the GDB021BE05 protects shipboard generators against unbalanced loading and insulation failures. The relay’s robust construction withstands harsh marine environments while maintaining reliable operation.
GDB021BE05 HIEE300766R0005
Related Model Recommendations
ABB REG670: Base generator protection relay
ABB RET670: Transformer protection relay
ABB REF670: Feeder protection relay
ABB REB670: Busbar protection system
ABB REC670: Bay controller for substation automation
ABB RES670: Capacitor bank protection relay
ABB REL670: Line differential protection system
Installation, Commissioning and Maintenance
Installation preparation:
Before installing the ABB GDB021BE05, verify the panel cutout dimensions and ensure adequate clearance for ventilation. Prepare appropriate CT/PT cables with proper insulation for the expected voltage levels. Ensure the mounting location meets the specified environmental conditions.
Maintenance suggestions:
Conduct annual secondary injection tests to verify protection settings. Monitor the relay’s self-diagnostics through the HMI or PCM600 software. Regularly check the tightness of terminal connections and clean ventilation openings. Update firmware during planned outages to ensure access to the latest features and security patches.
Service and Guarantee Commitment
ABB provides a 36-month warranty for the GDB021BE05, covering manufacturing defects and workmanship. Our global network of protection engineers offers 24/7 technical support and field services. Customers benefit from lifecycle management including firmware updates for 10+ years and guaranteed spare parts availability for 15 years after product discontinuation. ABB’s certified training programs ensure proper operation and maintenance of the ABB GDB021BE05 HIEE300766R0005 throughout its service life.
