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- ABB
- REB670 1MRK002820-AC
- Busbar Protection Relay
- Sweden (SE)
- 265.9 x 223.7 x 255 mm
- 7.5 kg
- Xiamen, China
- New & In Stock
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- 1 Year
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
In modern electrical power systems, reliable protection equipment is essential for maintaining grid stability, preventing equipment damage, and ensuring continuous power supply. The ABB REB670 1MRK002820-AC Busbar Protection Relay is an advanced protection and control device designed for high-performance busbar protection applications in substations and industrial power networks.
The ABB REB670 belongs to the Relion protection family and is designed to provide fast, selective, and dependable protection for busbar systems. It continuously monitors electrical conditions through current measurement inputs and detects abnormal operating conditions such as internal busbar faults.
Busbar faults can cause significant damage and large-scale power interruptions if they are not cleared quickly. The REB670 provides high-speed differential protection technology to identify fault locations accurately and send immediate trip commands to connected circuit breakers.
The relay is suitable for applications including power generation facilities, electrical substations, industrial power distribution systems, and large energy infrastructure projects.
With dimensions of 265.9 × 223.7 × 255 mm and a weight of 7.5 kg, the ABB REB670 1MRK002820-AC provides a compact and reliable protection solution for panel and cabinet installation.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB |
| Model | REB670 |
| Article Number | 1MRK002820-AC |
| Product Type | Busbar Protection Relay |
| Protection Category | Electrical Protection Relay |
| Application | Busbar Differential Protection |
| System Application | Substation and Power Distribution |
| Protection Function | Fault Detection and Isolation |
| Installation Method | Panel Mounting / Cabinet Installation |
| Communication Capability | Industrial Protection Communication |
| Dimension | 265.9 × 223.7 × 255 mm |
| Weight | 7.5 kg |
Function and Working Principle
The ABB REB670 operates as an intelligent protection relay that continuously monitors current conditions within electrical busbar systems.
During normal operation, the relay receives current signals from multiple feeders connected to the busbar. The internal protection processor compares the incoming and outgoing current values to determine whether the electrical system is operating normally.
When an internal busbar fault occurs, the relay detects abnormal differential current and quickly identifies the affected protection zone. After confirming the fault condition, the relay sends a trip signal to the corresponding circuit breakers to isolate the faulted section.
The working process includes:
- Receiving current measurement signals
- Monitoring electrical system conditions
- Performing differential current calculations
- Identifying fault locations
- Sending breaker trip commands
- Recording fault information
Main functions include:
- Busbar differential protection
- High-speed fault detection
- Protection zone identification
- Breaker trip control
- Event recording
- Self-monitoring diagnostics
Role in Industrial Power Protection Systems
The ABB REB670 plays an important role in modern power protection architectures by improving electrical system safety and operational reliability.
It is commonly integrated with:
| System Component | Function |
|---|---|
| Current Transformers | Provide electrical measurement signals |
| Circuit Breakers | Disconnect faulted circuits |
| Protection Cabinets | Provide equipment installation space |
| Substation Automation System | Enables monitoring and control |
| SCADA System | Provides remote supervision |
| Communication Network | Transfers protection information |
By providing fast and accurate fault detection, the REB670 helps reduce equipment damage and minimize power interruption risks.
Industrial Applications
The ABB REB670 1MRK002820-AC Busbar Protection Relay is widely used in critical electrical applications.
| Industry | Application |
|---|---|
| Power Generation | Generator substation protection |
| Electrical Utilities | Transmission and distribution substations |
| Oil and Gas | Industrial power system protection |
| Petrochemical | Critical electrical infrastructure |
| Mining | High-power distribution systems |
| Manufacturing | Factory power protection |
| Renewable Energy | Grid connection protection |
| Transportation | Electrical supply systems |
The relay is especially suitable for applications requiring rapid fault clearance, high reliability, and continuous operation.
Installation and System Integration
Proper installation and configuration are important for ensuring accurate protection performance.
Recommended installation procedures:
- Install the relay inside a suitable protection cabinet
- Connect current transformer inputs
- Connect control and trip circuits
- Configure protection parameters
- Set communication functions
- Perform commissioning tests
During commissioning, engineers should verify:
- Input signal accuracy
- Protection setting parameters
- Trip output operation
- Communication status
- Alarm functions
- Fault recording performance
Correct installation ensures reliable protection operation and reduces unnecessary shutdowns.
Protection Functions
The ABB REB670 provides advanced protection functions designed for modern electrical systems.
| Protection Function | Description |
|---|---|
| Differential Protection | Detects internal busbar faults |
| Fault Identification | Determines affected protection area |
| Trip Logic Control | Sends breaker operation commands |
| Monitoring Function | Tracks equipment status |
| Event Recording | Stores fault and operation information |
| Diagnostic Function | Supports maintenance analysis |
These functions improve system response speed and enhance electrical network reliability.
Communication and Connectivity
The ABB REB670 supports integration with modern power automation systems.
| Function | Description |
|---|---|
| Protection Communication | Transfers protection data |
| Control Communication | Exchanges operating commands |
| Monitoring Communication | Provides equipment status information |
| Diagnostic Communication | Supports troubleshooting |
The communication capability allows the relay to operate effectively within digital substations and industrial power networks.
Compatible Automation and Protection Systems
The ABB REB670 can be integrated into different electrical automation environments.
| System | Application |
|---|---|
| ABB Relion Protection Systems | Substation protection |
| Digital Substation Systems | Intelligent electrical control |
| SCADA Systems | Remote monitoring |
| Industrial Power Networks | Electrical protection |
| Energy Management Systems | Power operation optimization |
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| ABB REB670 | Busbar Protection Relay | High-speed differential protection | Substation protection |
| ABB REF670 | Feeder Protection Relay | Feeder protection and control | Distribution systems |
| ABB RET670 | Transformer Protection Relay | Transformer monitoring | Power transformers |
| ABB REC670 | Bay Control Unit | Substation control | Electrical automation |
Key Advantages
- High-speed busbar fault protection
- Accurate differential protection technology
- Fast fault isolation capability
- Reliable operation in critical power systems
- Supports modern substation automation
- Improves electrical system stability
- Provides advanced monitoring functions
- Suitable for industrial and utility applications
- Reduces equipment damage risks
Technical FAQs
What is the ABB REB670 1MRK002820-AC used for?
The ABB REB670 is a busbar protection relay used for detecting and isolating faults in electrical busbar systems.
What is the main function of the ABB REB670?
Its main function is to provide fast differential protection and fault isolation for substations and industrial power systems.
What are the dimensions of the ABB REB670?
The dimensions are 265.9 × 223.7 × 255 mm.
What is the weight of the ABB REB670?
The total weight is 7.5 kg.
Where is the ABB REB670 commonly installed?
It is commonly installed in substations, power plants, industrial facilities, and large electrical distribution systems.
Conclusion
The ABB REB670 1MRK002820-AC Busbar Protection Relay is a reliable and advanced protection solution designed for modern electrical power systems.
With high-speed fault detection, accurate differential protection, and strong system integration capability, the REB670 improves electrical safety, enhances grid stability, and supports reliable power distribution.
For power engineers, protection specialists, and industrial automation professionals, the ABB REB670 provides an effective solution for advanced busbar protection and substation automation applications.