Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ABB REF611 IEC / Standard Configuration B |
| Brand | ABB |
| Product Type | Feeder Protection and Control Relay |
| Series | ABB Relion 611 Series |
| Weight | Approx. 4.0 kg |
| Dimensions | 244 mm x 144 mm x 174 mm |
| Operating Temp | -25 deg C to +55 deg C |
| Storage Temperature | -40 deg C to +85 deg C |
| Power Consumption | Not specified |
| Rated Frequency | 50 Hz / 60 Hz |
| Auxiliary Voltage Supply | 48 to 250 VDC / 100 to 240 VAC or 24 to 60 VDC |
| Current Inputs | Phase CT: 1 A / 5 A; Residual CT: 1 A / 5 A or sensitive 0.2 A / 1 A |
| Voltage Inputs | 60 to 210 V |
| Binary Inputs | Up to 10 channels |
| Binary Outputs | Up to 6 channels |
| Front Protection Degree | IP54 |
| Rear Terminal Protection Degree | IP20 |
| Communication Protocols | IEC 61850-8-1 Ed. 1 and Ed. 2, Modbus RTU/TCP |
| Ethernet Interface | 100Base-TX RJ45 or 100Base-FX LC optical |
| Serial Interface | RS-485 |
| Redundancy Protocols | HSR, PRP, RSTP |
| Engineering Tool | ABB PCM600 Protection and Control IED Manager |
Industrial Control Network Communication and Backplane Integration
The ABB REF611 uses ABB Relion 611 series communication architecture to exchange protection, measurement, and control information with substation automation systems. It supports IEC 61850 communication with GOOSE messaging for fast peer-to-peer signal transfer between intelligent electronic devices.
Furthermore, the relay supports HSR and PRP redundancy protocols for Ethernet communication availability. The device also provides Modbus RTU/TCP connectivity for integration with existing control systems. Its Ethernet communication design supports deterministic data exchange between protection equipment and supervisory systems.
The REF611 firmware platform supports configuration management through PCM600, allowing engineers to define protection settings, signal matrices, and communication parameters. In addition, the relay supports I/O density scaling through configurable binary inputs and outputs for different feeder control requirements.
Frequently Asked Questions
Q: Does the ABB REF611 support IEC 61850 GOOSE communication?
A: Yes. The REF611 supports IEC 61850-8-1 Ed. 1 and Ed. 2 communication and provides GOOSE messaging for fast inter-device signal exchange.
Q: What protection functions are available in the REF611 standard configuration?
A: The relay provides three-phase overcurrent protection, earth-fault protection, thermal overload protection, phase unbalance protection, breaker failure protection, and trip circuit supervision.
Q: Can the REF611 operate with redundant Ethernet networks?
A: Yes. The relay supports HSR, PRP, and RSTP redundancy protocols through compatible Ethernet communication interfaces.
Field Installation Guidelines
- Install the REF611 in a suitable protection panel with correct mechanical clearance for the withdrawable unit design.
- Connect current transformer circuits according to the specified CT input ratings and verify polarity before energizing the relay.
- Maintain proper separation between communication cables, power wiring, and high-current conductors to reduce electromagnetic interference.
- Ground the enclosure and terminal connections according to substation protection panel grounding practices.
- Configure protection settings, binary I/O mapping, and communication parameters using PCM600 before commissioning.
- Verify IEC 61850 network parameters, Ethernet connections, and GOOSE message exchange before placing the relay into operational service.
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