Description
ABB REF615E_1G Feeder Protection and Control Relay
The ABB REF615E_1G is a dedicated feeder protection and control relay belonging to the globally recognized Relion® 615 series. It is engineered for the protection, control, measurement, and supervision of utility and industrial power distribution systems, including radial, looped, and meshed networks.
Product Detailed Description
The REF615E_1G is a compact and versatile Medium Voltage (MV) protection relay. The “E” configuration typically denotes a specific functional application package (such as advanced directional overcurrent and earth-fault protection, voltage, and frequency protection), while the “1G” represents the specific hardware generation and revision profile.
It natively supports the IEC 61850 communication standard for substation automation, enabling high-speed horizontal station-to-station communication (GOOSE messaging) and seamless integration into smart grids.
Technical Parameters
| Parameter | Specification (Typical Variant Setup) |
| Product Series | Relion 615 Series (REF615) |
| Application | Feeder Protection and Control |
| Power Supply Voltage | Variant dependent: 48…250 V DC / 100…240 V AC |
| Analog Inputs | Up to 4 Current Transformers (CT) + 4 Voltage Transformers (VT) |
| Binary Inputs/Outputs | Scalable (Typically 4–8 Inputs, 6–10 Outputs) |
| Communication Protocols | IEC 61850, Modbus RTU/TCP, DNP3, IEC 60870-5-103 |
| Enclosure Rating | IP54 (Front panel flush-mounted) |
| Ambient Temperature | -25°C to +55°C (Operating) |
| Safety Certifications | CE, UL listed, IEC 60255 compliant |
Product Advantages
- Advanced Protection Capability: Offers comprehensive overcurrent, earth-fault, thermal overload, arc flash, and optional directional/voltage protection within a single compact unit.
- Draw-out Design: Employs a plug-in/draw-out construction. This allows for rapid replacement or testing of the relay unit without disturbing the underlying terminal wiring, significantly minimizing system downtime.
- Web HMI Integration: Features a built-in web browser-based Human-Machine Interface (HMI) for effortless parameterization, monitoring, and event-log viewing without requiring complex proprietary software.
- Native IEC 61850 Compliance: Simplifies substation architecture by substituting hardwired inter-relay signals with Ethernet-based GOOSE messaging.
- Large Graphical Display: Offers a clear, customizable single-line diagram (SLD) mimic directly on the front panel to view breaker and switch positions instantly.
Important Considerations & Precautions
- CT Secondary Circuit Integrity: Never open-circuit a Current Transformer (CT) secondary path while the primary circuit is energized. High, lethal voltages can build up across open CT terminals.
- Configuration Matching: The REF615 must be configured using ABB’s PCM600 software. Ensure the application configuration (.pcmsv file) strictly matches the physical physical wiring diagram of your switchgear panel.
- Firmware Lifecycle: Verify that the relay’s firmware version is updated to patch known communication or safety bugs, especially when deploying inside an encrypted network.
- Dielectric Testing: Disconnect communication cables and sensitive electronic links before conducting any high-voltage insulation or dielectric tests on the switchgear panel.
Product Applications
The REF615E_1G is widely deployed across medium-voltage utility and industrial infrastructure:
- Utility Distribution: Radial or looped feeder circuits in primary and secondary substations.
- Industrial Plants: Protecting internal power networks in chemical plants, steel mills, pulp and paper facilities, and manufacturing complexes.
- Renewable Energy Integration: Feeder protection networks for wind farms and large-scale solar power generation plants connecting to the grid.
- Infrastructure Systems: Main incoming and outgoing feeder control in airports, railways, and data center power plants.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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