Description
General Information about ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 / 3BHE031197R0001 / 3BHB030310R0001
In the field of electrical power systems and high-voltage network management, key equipment includes the
ABB GRID BREAKER UNIT GBU72 models:
3BHE055094R0002,
3BHE031197R0001, and
3BHB030310R0001 — products by ABB, a brand renowned for reliable solutions in substations, wind farms, and industrial power grids. These breakers are designed to protect lines from faults (short circuits, overloads) and ensure stable power distribution, each tailored to specific operating conditions. Detailed information on functionality, technical specifications, and applications of
ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 / 3BHE031197R0001 / 3BHB030310R0001 is available on the official resource: [link to ](provided link will be inserted here).
ABB is celebrated for its expertise in manufacturing power equipment for extreme environments, and all three
models uphold this standard — they resist electromagnetic interference, extreme temperatures, and aggressive environments.
3BHE055094R0002 features enhanced breaking capacity,
3BHE031197R0001 is optimized for remote areas with minimal maintenance, and
3BHB030310R0001 is focused on integration into digital substations. With their universal design and hermetic enclosures, all breakers are easily installed in both enclosed cabinets and open sites, ensuring long-term safe operation. The
series stands out for its adaptability, making it a versatile choice across diverse power infrastructure scenarios.
Technical Parameters of ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 / 3BHE031197R0001 / 3BHB030310R0001
The ABB GRID BREAKER UNIT GBU72 series features specifications adapted to different operational scenarios:
| Parameter | 3BHE055094R0002 | 3BHE031197R0001 | 3BHB030310R0001 |
|---|---|---|---|
| Rated voltage | 72 kV | 72 kV | 72 kV |
| Rated current | 2500 A | 2000 A | 2500 A |
| Maximum breaking current | 40 kA (2 sec) | 31.5 kA (2 sec) | 40 kA (2 sec) |
| Insulation type | SF₆ (zero leakage) | SF₆ (extended service life) | SF₆ + digital insulation monitoring |
| Communication protocols | IEC 61850, Modbus TCP | Modbus RTU (for remote areas) | IEC 61850, OPC UA |
| Temperature range | -30 °C to +55 °C | -40 °C to +50 °C | -30 °C to +60 °C |
| Enclosure protection | IP65 | IP66 | IP65 |
Detailed parameters for each model are available on the official page: [link to ](provided link will be inserted here).
Advantages and Features of ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 / 3BHE031197R0001 / 3BHB030310R0001
Each ABB GRID BREAKER UNIT GBU72 model offers unique benefits:
- 3BHE055094R0002: Its high breaking current (40 kA) makes it ideal for grids with variable loads (e.g., hybrid energy systems with wind and solar power plants), where peak loads are common.
- 3BHE031197R0001: Optimized for remote regions — its extended temperature range (-40 °C to +50 °C) and IP66 protection ensure operation in extreme cold and precipitation with minimal maintenance.
- 3BHB030310R0001: Integrated digital insulation monitoring and OPC UA support enable seamless integration with cloud platforms (e.g., ABB Ability), critical for digital substations with predictive fault detection.
All models share the use of zero-leakage SF₆ gas (eco-friendliness) and quick-install design, reducing deployment time in existing networks. The series thus combines reliability, adaptability, and modern connectivity.
Application Examples of ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 / 3BHE031197R0001 / 3BHB030310R0001
The models are used in various scenarios:
- 3BHE055094R0002: In industrial complexes with on-site power plants — protects transformers from temporary overloads during the startup of heavy equipment (e.g., metallurgical furnaces).
- 3BHE031197R0001: At northern wind farms — withstands low temperatures and strong winds, ensuring reliable line disconnection during faults in areas with limited service access.
- 3BHB030310R0001: In digital urban power substations — via IEC 61850, transmits insulation status and current data to cloud systems, allowing operators to predict faults and plan maintenance.
Additional application examples for can be found at [link to ABB GRID BREAKER UNIT GBU72](provided link will be inserted here).
Comparison with Competitors
Compared to similar grid breakers (Siemens 8DQ1, Alstom Grid HB), the series offers distinct advantages:
| Parameter | ABB 3BHE055094R0002 | Siemens 8DQ1 | Alstom Grid HB |
|---|---|---|---|
| Maximum breaking current | 40 kA | 31.5 kA | 31.5 kA |
| Temperature range | -30 °C to +55 °C | -25 °C to +50 °C | -25 °C to +50 °C |
| IEC 61850 support | Yes | Yes | No |
3BHE031197R0001 outperforms competitors with IP66 protection and extreme cold resistance, while
3BHB030310R0001 leads in digital monitoring capabilities, making the
series versatile for diverse conditions.
Selection Recommendations and Precautions
Selection Recommendations
- 3BHE055094R0002: For grids with variable loads (industrial complexes, hybrid energy systems) — due to its 40 kA breaking current.
- 3BHE031197R0001: For remote and cold regions (northern wind farms) — thanks to its wide temperature range and IP66 protection.
- 3BHB030310R0001: For digital substations — due to cloud integration and insulation monitoring features.
Precautions
- Maintenance: For all ABB GRID BREAKER UNIT GBU72 models, conduct annual SF₆ pressure checks and contact inspections to prevent gas leaks and maintain reliability.
- Calibration: Adjust controller settings (overload thresholds, delays) to match network specifics — avoids false tripping.
- Wiring: Use shielded cables for communication — protects against electromagnetic interference in high-voltage zones.
- Ecology: For gas replacement, use only ABB-certified services — ensures proper SF₆ recycling and compliance with environmental standards.
