Overview
ABB REB670 Busbar Differential Protection IED
Configured for high-speed busbar differential protection in ABB Relion 670 substation platforms, the ABB REB670 1MRK004822-BB (REB670 Busbar Differential Protection IED) provides direct electrical fault detection and isolation execution for busbar zones, T-connections, and meshed corners.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | REB670 1MRK004822-BB |
| Brand | ABB |
| Origin | Sweden |
| Device Type | Busbar Differential Protection and Control IED |
| Series | Relion 670 Series |
| Application Voltage Level | Medium Voltage (MV) to Extra High Voltage (EHV) substations |
| Protection Zones | Up to 6 configurable zones |
| Protection Functions | Busbar differential protection, breaker failure protection (50BF), CT supervision |
| Fault Detection | Phase-to-phase, phase-to-ground, and multi-phase fault detection |
| Auxiliary Power Supply | 48 – 250 VDC / 100 – 240 VAC |
| Nominal Frequency | 50 Hz / 60 Hz |
| CT Inputs | Configurable 1 A / 5 A current transformer inputs |
| Communication Protocols | IEC 61850 Ed. 1 and Ed. 2, GOOSE, MMS, DNP3.0, Modbus TCP, IEC 60870-5-103 |
| Network Redundancy | PRP / HSR support |
| Human Machine Interface | Front LCD display with keypad for local configuration and event monitoring |
| Mounting Type | 19-inch rack mounting or panel flush mounting |
| Enclosure Protection | IP54 front panel, IP20 rear terminals |
| Operating Temp | -25 deg C to +55 deg C |
| Extended Operating Temp | Up to -40 deg C to +70 deg C depending on installation configuration |
ABB Relion 670 Industrial Communication and Protection Functions
The REB670 uses ABB Relion 670 series communication architecture to exchange protection and control information through IEC 61850 based networks. It supports GOOSE messaging for high-speed interlocking and trip signaling. Additionally, the device supports Sampled Values Process Bus functions for digital current and voltage measurement applications.
The IED manages complex busbar arrangements, including single busbar, double busbar, transfer bus, and breaker-and-a-half configurations. Furthermore, it supervises CT input conditions by monitoring CT saturation and open-circuit conditions to maintain measurement accuracy during fault conditions.
The ABB protection platform also supports industrial network performance optimization through deterministic communication handling and configurable I/O density scaling. Therefore, the REB670 can integrate multiple protection zones and bay signals within a structured substation automation system.
Frequently Asked Questions
Q: Does the REB670 support IEC 61850 GOOSE communication?
A: Yes. The REB670 supports IEC 61850 communication with GOOSE messaging for high-speed protection signaling and interlocking functions.
Q: What type of current transformer inputs does the REB670 accept?
A: The device supports configurable CT input modules with 1 A and 5 A current transformer signal options.
Q: Can the REB670 operate with redundant communication networks?
A: Yes. Specific configurations support PRP and HSR network redundancy according to IEC 62439-3 requirements.
Field Installation Guidelines
- Install the REB670 in a protected control cabinet with suitable mechanical support and environmental conditions.
- Connect CT secondary circuits using correct polarity and phase identification to prevent incorrect differential current calculation.
- Maintain separation between protection signal wiring and high-current power cables to reduce electromagnetic interference.
- Use shielded communication cables according to IEC 61850 network installation practices.
- Connect cable shields using proper grounding methods to minimize communication noise and transient interference.
- Verify auxiliary power polarity before energizing the IED.
- Confirm firmware compatibility and configuration files before commissioning the protection functions.
- Test trip outputs, breaker failure logic, CT supervision, and communication interfaces during site acceptance procedures.
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Contact: Manski Wong +86 18030205725 manski@cambia.cn
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